CN103288263B - The Photocatalytic wastewater degradation device of membrane module is safeguarded by weak cavitation high frequency ultrasound - Google Patents

Abstract

The present invention relates to a kind of Photocatalytic wastewater degradation device safeguarding membrane module by weak cavitation high frequency ultrasound, belong to technical field of waste water processing.In existing correlation technique, have that catalyst interception link is on the weak side, reactor list tank wastewater treatment capacity is less than normal, DeR terminal moment difficulty is distinguished, agglomeration thing cannot original position brute force dissipates, agglomeration occurs immediately to be perceiveed, catalyst accumulation thing not easy-clear etc. problem on membrane module, this case is intended to solve above-mentioned series of problems totally.Its structural limitations microwave exposure spatial domain, allows reactor significantly dilatation; Its structure is also with the external filter of multi-stage cascade interception catalyst particles; Its structure also with low-frequency ultrasonic waves dissipation agglomeration thing, incidentally cleans silica tube simultaneously; Its structure also can close line related when DeR reaches terminal automatically; Its structure also can the main inducement parameter of self-inspection agglomeration automatic warning; Its structure also assists its back flushing of membrane module running with the negligible high-frequency ultrasonic of cavitation damage.

Description

The Photocatalytic wastewater degradation device of membrane module is safeguarded by weak cavitation high frequency ultrasound

Technical field

The present invention relates to a kind of Photocatalytic wastewater degradation device safeguarding membrane module by weak cavitation high frequency ultrasound, belong to C02F technical field of waste water processing.

Background technology

Microwave and photo catalysis degradation treatment technology, as a kind of effectively for the innoxious process for treating containing organic pollutant trade effluent, quite concerned in recent years.

About microwave and photo catalysis degradation technique, as an example, can be the Chinese patent application case of CN102260003A see publication number.

The disclosure number is the Chinese patent application case of CN102260003A, using microwave as excitaton source, electrodeless ultraviolet lamp is excited to launch ultraviolet, the suspension liquid being mixed with photocatalyst titanium dioxide fine particles is irradiated in liquid internal, this electrodeless ultraviolet lamp shroud by silica tube and protect, pneumatic pump is had to continue to inject air to this silica tube inner chamber, the air overflowed by quartz cavity is via pipeline and the micro porous aeration head UNICOM being positioned at reactor bottom, the lower zone of this inside reactor is aeration zone, the upper area of this inside reactor is microwave and photo catalysis reaction zone, the program is also with the membrane separation assemblies that reactor is built-in, carry the water after analysing purification, and realize retaining of photocatalyst titanium dioxide fine particles with this membrane separation assemblies and use again, the program also sets up dividing plate between non-polar ultraviolet light source and membrane separation assemblies, for preventing ultraviolet to the radiation injury of the membrane separation assemblies of organic matter, pass into the air of inside reactor, part participates in the photocatalytic degradation reaction relying on photocatalyst titanium dioxide directly, some air, under the direct irradiation of UV-light, generate a certain amount of ozone, the ozone of this generation also plays the direct oxidative degradation for organic pollutant certainly.

The Chinese patent application case that the disclosure number is CN102260003A certainly serves very important pushing effect for the progress of microwave and photo catalysis wastewater degradation technology, and the work that its research staff launches in this field is admirable.

Based on the meaning of sincere admiration, and common striving direction, what will talk below us is problem.

The problem below will spoken of, has 14; This ten four problems is ten four problems arranged side by side; The priority of its sequence is only consider easily for discussion.

One of problem:

The disclosure number is the Chinese patent application case of CN102260003A, it is be placed in reactor inner chamber for tackling the membrane separation assemblies of catalyzer titanium dioxide fine particles, be immersed among handling object liquid, and what rely on ascension contains ozone bubbles to wash away membrane separation assemblies, remove its surface by this adsorbed, the catalyst particles be detained, reach the recovery of catalyst particles, recycling object, simultaneously, membrane separation assemblies is also rely on this mode self-cleaning and keep its separating power, so, based on this structure, business curtain hollow fiber film assembly or plate film assembly can only be selected, and, this membrane separation assemblies needs to be immersed in the context of the strong oxidizing property of ozone bubbles ascension, therefore, requirement must be had to the tolerance against oxidative power of membrane separation assemblies, the organic membrane separation assembly of common material can not tolerate such environment for use, therefore the membrane separation assemblies of PVDF material can only be selected, this point clearly illustrates that in open text the 0009th section of word of this case and claim 3, this kind needs its material cost of filter membrane of special tolerance against oxidative power higher, and its commercially available price is certainly also higher than common organic micro-filtration membrane module of non-oxidation durability requirements, in other words, the frame mode of this case, causes the PVDF material that the material of membrane separation assemblies is limited to costly.Have again, UV-light possible in device is revealed, organic membrane assembly may be touched, this organic membrane assembly material also in claimed apparatus can resist ultraviolet light irradiation, from this point, based on the organization plan of this device, the material of organic membrane separation assembly also can only be limited in PVDF material costly.

Organic membrane assembly, compared to ceramic filter assemblies, has its apparent advantage; About this point, for the personage of filtering technique specialty, be known, here do not launch to repeat.

Can so, under the prerequisite using organic material membrane module, bypass this PVDF filter membrane material limitation? this is a problem needing to solve, and this is one of problem.

Problem two:

In view of the scouring force of described ascension bubble, cleaning capacity is more weak, therefore, with this cleaning mode with the use of its aperture of membrane separation assemblies can only select the filter opening aperture of larger micro-filtration rank, the filter opening aperture of this micro-filtration rank is 0.1-0.2 micron, about this point, have in open text the 0009th section of word of this case and claim 3 equally and clearly limit, this kind of filter opening aperture limits, from the type selecting of the such membrane separation assemblies of this case, built-in and soak use-pattern, the self-cleaning method of ascension bubble, be inevitable, its filter opening aperture can only be limited in micro-filtration rank.In other words, this its scouring force of mode, cleaning force of washing away with ascension bubble is too weak, to such an extent as to cannot tackle the filter membrane of more small-bore at all, thus, in this case device, filter sizes is limited between 0.1 micron-0.2 micron, is the inevitable choice of not discussing leeway.

The filter opening aperture of so-called 0.1-0.2 micron, if change a measure unit, the filter opening aperture of 100-200 nanometer that corresponding is exactly; Does is what concept that? with 100 nanometer filter opening apertures of its lower limit, its size of catalyst particles that it can be tackled must be more than 100 nanometers, and the catalyst particles being less than 100 nanometers cannot be blocked; In other words, the catalyst particles being less than 100 nanometers, by directly penetrating, by the filter opening of membrane module, is mixed among so-called water purification that DeR device exports.

Present needs are had a talk the particle diameter of photocatalyst involved by ultraviolet catalytic DeR and photocatalyst dosage form selection.

The professional person being engaged in photocatalytic degradation research knows, reacts, its catalyzer multiselect titanium dioxide fine particles catalyzer with the photochemical degradation of uv light induction, at present, laboratory level is developed the photodegradation particle catalyst based on optically catalytic TiO 2 characteristic various in style, certainly, the photodegradation catalyzer that these different preparation methods are formed, its particle diameter is also various, its particle diameter of photocatalyst that different preparation method makes is little of 20 nanometers, and greatly to 100000 nanometer is also 100 microns, has, is wherein no lack of the photocatalyst kind of excellent performance, but due to the restriction of the evaluation of performance permanent stability, preparation cost and the market expansion etc. aspect factor, most its deliverabilities of described photocatalyst is only confined to laboratory level, and does not have to be formed production level commercially available on a large scale, at present known can make a big purchase in large quantities commercially available can actual a large amount of photocatalyst for UV-light wave band used be famous gas phase titanium dioxide P25, its concrete art-recognized meanings of gas phase titanium dioxide P25, insider knows, does not here launch to repeat, the median size of gas phase titanium dioxide P25 is 21 nanometers, gas phase titanium dioxide P25 performance is not very optimum, but, its stable performance, key can commercially make a big purchase in large quantities to obtain, and can use in a large number at industrial scale, therefore, also be usually used as with P25 catalyzer reference pointer or the contrast pointer of weighing various self-made photocatalyst catalytic performance in photochemical catalysis specialized laboratory, in fact, in view of the feature of ultraviolet catalytic DeR, the photocatalyst that dispersity is higher, be applicable to the needs of this type reaction, that is, median size is in its catalyst interfacial area that can provide of photocatalyst of 21 ran, anti-settling ability, catalytic performance permanent stability etc. aspect, comprehensive, optimal.Simply, at present, good and cheap, the photocatalyst of the UV-light wave band of the ready-made commercially available commercial grade can actually make a big purchase in large quantities, used is exactly median size is the gas phase titanium dioxide P25 catalyzer of 21 nanometers; At plant-scale application, this median size is the photocatalyst of 21 nanometers is actual first-selections.

Address above, the disclosure number is the Chinese patent application case of CN102260003A, it is for tackling the membrane module of photocatalyst, adsorbed with the stripping film assembly surface that washes away of ascension bubble, the catalyst particles of deposition, but, its scouring force of mode that this kind washes away with ascension bubble, cleaning force is too weak, to such an extent as to the filter membrane of more small-bore cannot be tackled at all, therefore, in this case device, filter sizes is limited at micro-filtration filter opening rank between 0.1 micron-0.2 micron, change a measure unit, in this case device, filter sizes is limited at the micro-filtration filter opening rank between 100 nanometer-200 nanometers, this is the inevitable choice of not discussing leeway, this case cannot tackle without the micro-filtration filter opening between selectable 100 nanometer-200 nanometers the gas phase titanium dioxide P25 particle that median size as above is 21 nanometers certainly, so, if use P25 photocatalyst, this catalyzer will cannot be tackled completely, and flows in so-called water purification, formation secondary pollution, certainly also causes the heavy losses of catalyzer and unrenewable, even if use the titanium dioxide optical catalyst of special Large stone for this reason of other kind, because mutually colliding or colliding with wall in its use procedure, also a large amount of small particle size fragment can must be produced, wherein particle diameter is less than the fragment of 100 nanometers, equally can not tackle by the micro-filtration filter opening between 100 nanometer-200 nanometers, these small shredss also can enter among so-called water purification through its membrane module, form secondary pollution.

Visible, the disclosure number is the Chinese patent application case of CN102260003A, its for the interception structure scheme of photocatalyst particulate and the cleaning solution of related film assembly all undesirable.

Therefore, how under the prerequisite of this case advantage of incorporating things of diverse nature, reach the meticulous interception for photocatalyst particulate and recycling, be an important topic very worth thinking deeply about, this is problem two.

Problem three:

We know, liquid water body itself also can absorb the energy of microwave, and cause itself temperature-rise effect of the liquid water body that is processed, and this temperature-rise effect occurred with wastewater treatment process, but not the situation that we expect, in other words, microwave energy from magnetron is not used to excite electrodeless ultraviolet lamp completely, and have quite a few should only for exciting the microwave energy of electrodeless ultraviolet lamp to be dissipated in described temperature-rise effect, the temperature-rise effect that this kind is not fond of causes unnecessary microwave energy and wastes, in view of the apparatus structure scheme that the above-mentioned publication number Chinese patent application case that is CN102260003A is shown, its rational approach, can only be reduce single tank process capacity in other words by the volume of minimizing microwave and photo catalysis reactor to reach the object weakening the unnecessary dissipation of microwave, about this point, the clear suitable size that have expressed about this apparatus structure entirety in this its embodiment of CN102260003A application case, what the preferred size expressed by it was corresponding is exactly the very little device of a profile, so, thus, the distance of reactor wall and microwave radiation source is little, the wastewater flow rate contacted with microwave is little, the microwave energy that waste water absorbs is relatively also little, correspond ground, the wastewater treatment capacity of single tank is therefore also little, more particularly, the internal capacity corresponding to device suitable size expressed in embodiment is 40 liters, also namely single tank wastewater treatment capacity is 40 liters, namely 0.04 cube, in other words, it is once a complete set of, substantial length of operation solve only the trade effluent of 0.04 cube, so, just need the repetition operated to the complete set of tail by head carried out many times, the cumulative of its treatment capacity just has plant-scale meaning, so to say, just individual analogy roughly, the wastewater treatment capacity that roughly corresponding 0.04 cube, the single tank of its preferred structure size of this case is such, need repetition 1000 times by head to the complete set of tail, substantial length of operation, its accumulation amount, just can reach 40 cubes such one have industrial level wastewater treatment capacity, so excessively loaded down with trivial details repetitive operation will cause manpower, the serious waste of material resources, visible, the wastewater degradation processing efficiency of its reality of scheme that this kind is shown by CN102260003A may not be fully up to expectations.Therefore, how under not causing more microwave energies to waste or reducing the prerequisite of microwave energy waste, increase single tank wastewater treatment capacity, reduce this intermittent type wastewater treatment equipment unnecessary too many by head to the repetitive operation number of times of tail, improving its waste water treatment efficiency, is a significant technical problem merited attention.

On the other hand, according to the literature, some system, when the direct irradiation wastewater liquid of microwave, photochemical catalysis degradation efficiency truly has raising, that is, in some system, between the direct irradiation wastewater liquid of microwave and photochemical catalysis are degraded, there is certain coupling.

Therefore, how under the prerequisite taking into account described coupling, improve the processing efficiency of wastewater degradation device, be worth inquiring into, this is problem three.

Problem four:

The scheme that this kind is shown by CN102260003A, the bubble of the inner dispersed ascension of its retort, for the cyclic motion of the relative big scale of driving a reaction tank internal liquid, contributes slightly inadequate; Certainly, this weak point, in fact corresponding small size, the low capacity device of CN102260003A scheme as expression clear in its embodiment, the impact that almost has nothing observable.From plant-scale application demand, undersized the device of divergence process amount can have great magnetism certainly; So, as a kind of possibility, if there is certain mode can realize the significantly expansion for the treatment of capacity, under this situation, its importance of cyclic motion of the relative big scale of retort internal liquid will highlight naturally; Imagine the possibility that this treatment capacity is significantly expanded, so, how to strengthen the cyclic motion of the relative big scale of retort internal liquid, be exactly a problem certainly, this is problem four.

Problem five:

For the photochemical catalysis oxidizing reaction of UV-light wave band, there is following so several key element can have influence on the efficiency of this kinds of oxidation reaction, first ultraviolet wavelength, intensity, it two is particle diameters of photocatalyst, the usage quantity of photocatalyst in unit volume reaction solution, himself catalytic performance etc. of photocatalyst, it three is organic concentration in oxidized object and water body, oxidation complexity that organic molecule structure determines himself etc., it four is sufficient degree of oxygen atmosphere, when other condition is identical, the sufficient degree of oxygen atmosphere, the key element that of affecting photochemical catalysis oxidative degradation ability is very important will be become.

As CN102260003A the scheme of showing, its numerous micro porous aeration head disperseds being placed in reactor inner chamber bottom are in bottom, and by the water distribution board alleged by it, the effect of this micro porous aeration head dispersed arrangement is made to become more very, certainly, this is for the situation of the oarse-grained micron-sized photocatalyst of the relatively easy sedimentation of use, really there is the one side that it is favourable, but, from another side, the mode that this micro porous aeration head dispersed arranges, the supply of oxygen atmosphere too disperses, and what in fact need most the region of enhanced oxygen blowing is the most effective area of photochemical catalysis oxidation, because the Effective depth penetration of short wave ultraviolet in liquid water body only has 20 cm, therefore, need most enhanced oxygen blowing to promote that in fact the effective area of photochemical catalysis oxidation course is exactly the region within silica tube periphery about 20 cm distance, in other words, region within silica tube periphery about 20 cm distance really needs enriched with oxygen atmosphere to supply the region ensured, this region oxygen atmosphere supply is stronger, oxidizing reaction is also just carried out faster, especially especially, electrodeless ultraviolet emission is produced in microwave excitation mode, its feature can accomplish high-power, high strength exactly, this is the strong point of this lamp-type of electrodeless ultraviolet lamp, but, just because of the superpower of its uv-radiation, high strength, mate with powerful oxygen atmosphere supply capacity with regard to more needing, otherwise, that powerful uv-radiation ability is really just that major part has been wasted.Address above, as CN102260003A the scheme of showing, factors limits its reactor size, limit its actual treatment capacity, what clearly illustrate that in its specific embodiment is such, that can only be the little reactor that a single tank single treatment amount only has about 40 liters, at so little reactor, when little inner chamber, because size is inherently very little, so, it is oxidized the shortcoming in effective area oxygen supply concentration degree in photochemical catalysis, would not be so obvious, even negligible, a not Problems existing can be regarded more even completely as, in the face of such undersized little reactor, shortcoming problem in oxygen supply concentration degree, not mind may be floated, but, imagine, if described many limiting factors can be overcome, if way actual implementation one can be had large-scale, the reactor of high throughput, within so above-mentioned silica tube periphery 20 cm distance, effective area oxygen supply strengthening problem will show especially out, especially for the situation using electrodeless ultraviolet lamp as UV source, within above-mentioned silica tube periphery 20 cm distance, effective area oxygen supply strengthening problem is not allowed to despise more, therefore, how among the structure of possible large-scale photo-catalytical oxidation DeR device, strengthen the oxygen supply concentration degree of described effective area, improve the usefulness of wastewater degradation equipment, the problem that individual exactly needs are kept a close watch on, this is problem five.

Problem six:

This CN102260003A scheme pump air into include electrodeless ultraviolet lamp silica tube within, reach the aeration-cooling of electrodeless ultraviolet lamp, the object of cooling, and those flow over the air of silica tube, because being subject to ultraviolet irradiation, some air can change ozone into, therefore, the air flowed out from silica tube is exactly the air containing some ozone certainly, this is transferred to containing ozone-air and is positioned at micro porous aeration head below reactor by the program, and disengage from micro porous aeration head, at these containing in ozone bubbles ascension process from bottom to top, wherein contained ozone can meet with the organic molecule that runs among distance and redox reaction occurs, this redox reaction can consume a part of ozone certainly, this be do not have doubt, but, address above, as CN102260003A the scheme of showing, the many factors that cannot ignore certainly existed limit its reactor size, limit its actual treatment capacity, what clearly illustrate that in its specific embodiment is such, that can only be the little reactor that a single tank single treatment amount only has about 40 liters, at so little reactor, when little inner chamber, because overall dimension is inherently very little, so, it also can only be a very little size that the longitudinal size of its reactor inner chamber or regard as with reckoning in every item contains the liquid degree of depth, this size as among its embodiment clearly illustrate that, only have about 40 centimetres, the Sheng that the reckons in every item liquid degree of depth also just only has 40 centimetres, in fact contain the liquid degree of depth and be certainly less than this number, just analyze with the Sheng liquid degree of depth of 40 centimetres, so, does is this Sheng liquid degree of depth of 40 centimetres what concept? that is to say, short 40 centimetres are only had by the path of waste water containing ozone-air ascension, this path is too short, pass through at a gallop containing ozone-air bubble and only only have 40 centimetres of dark water bodys, too short for duration of contact with water body, ozone contained in bubble, a very little part can only be had to be used to oxidative degradation organism, and most ozone in fact just passes by liquid simply, from liquid level effusion and emptying through exhaust port, briefly, the oxygenizement potentiality major part of these ozone has been wasted, and, effusion, in fact the ozone be wasted can cause unnecessary atmospheric pollution, this case main inventive people once squeezed into containing ozone-air via micro porous aeration head with normal domestic use ozone machine in one meter of dark tank, when the depth of water degree of depth reaches one meter, still near the water surface, obviously can smell the smell of ozone, visible, that 40 centimetres of dark Sheng liquid degree of depth are obviously be not enough to utilize ozone completely, visible, for the such equipment of electrodeless ultraviolet light chemical catalysis wastewater degradation reactor, ozone utilizes incomplete problem also to need to pay close attention to, obviously, people are more it is contemplated that ozone utilizes more completely, contaminative exhaust emissions is less without extreme ultraviolet wastewater degradation reactor, and this is problem six.

Problem seven:

Its running of waste water catalytic degradation reaction device, requires the expenditure of energy, and therefore, operator are bound to wish, when wastewater degradation reaction proceeds to terminal, can impartially, prematurely immediately stop continuing Implantation Energy to inside reactor only lately; If stop the moment of Implantation Energy too early, then wastewater degradation is incomplete; And if reach reaction end already, but still unceasingly to inside reactor Implantation Energy, that is certainly at the valuable energy of waste.Its structure of CN102260003A scheme as this case technical background can not provide any instant information to the wastewater degradation terminal moment, so, just can only estimate by experience the terminal that wastewater degradation reacts; And estimate by experience the terminal that wastewater degradation reacts, that obviously can not be satisfactory; So, how to make neither also undelayed instant information output in advance for the wastewater degradation reaction end moment, and immediately close the energy input to reactor in the just right moment, a technical threshold that can not despise exactly, this is problem seven.

Problem eight:

Accept the described trade effluent of microwave and photo catalysis degradation treatment, wherein be mingled with the material that some originate from the metal particle and carbon granules and so on of mechanical system abrasion process unavoidably, even if quantity is small, its existence is almost difficult to avoid, the disclosure number is that the described organic membrane separation assemblies in the Chinese patent application case of CN102260003A is installed in microwave and photo catalysis reaction zone, being installed in wherein does not stop microwave certainly for intercepting ultraviolet dividing plate between silica tube and membrane separation assemblies, so, the practical function region of microwave must cover the installation area of organic membrane separation assemblies institute described in the program, based on the working mechanism of membrane separation assemblies, the particulate of metal particle as above and carbon granules and so on its be difficult to avoid in the accumulation process on the organic top layer of membrane separation assemblies, and the particulate of metal particle and carbon granules and so on described in this type of, the good absorption medium of microwave energy exactly, absorb the particulate of the described metal particle and carbon granules and so on of the accumulation state of microwave energy, nature can to the top layer of the organic membrane separation assemblies that it is close to produce based on heat penetration erosion mechanism continue pierce destruction, as mentioned above, because the structures shape of this its device of CN102260003A application case can only select polyvinylidene fluoride film material, this polyvinylidene fluoride film material heatproof about 140 degrees Celsius, really higher than general film material heatproof many, but, the heat penetration erosion effect that its point-like of particulate absorbing the described metal particle and carbon granules and so on of the accumulation state of microwave energy pierces formula very easily breaks through the heatproof temperature limit of this polyvinylidene fluoride film material, for above-mentioned reasons, well imagine, pvdf membrane material in this its device of CN102260003A application case will be significantly less than expected desirable work-ing life its actual service life, the structure of this its device of CN102260003A application case, determine under this structural framing, the heat penetration erosion destruction problem that above-mentioned point-like pierces formula cannot be avoided, therefore, how to get around the heat penetration erosion destruction problem that this point-like pierces formula, also need to consider, this is problem eight.

Problem nine:

The disclosure number is the Chinese patent application case of CN102260003A, open text text the 0008th section of word of its specification sheets and claim Section 2, for the catalyst particle size scope that its device can be suitable for, have a restriction, this particle size range is defined as 20 nanometers to 100 micron.We know, under some pH value regulates not in place, the inappropriate situation of pH value in advance, titanium dioxide fine particles is easily reunited, and then affects its effective working interface area, affects its photochemical catalysis usefulness; Especially for the section of the relatively small particle size of those among this particle size range, easily occur especially because of pH value presetting not in place, pH value is incorrect and the agglomeration traits that causes; For the situation that this catalyst particles is reunited, be immediately to adopt an effective measure, the depolymerization carried out for coacervate operates; But we are among this CN102260003A scheme, do not see any structure contributing to immediately dissolving this problem or can immediately dissolve this problem scheme prompting.Can only be the reactor of small scale structures just like that because factors restriction for such as CN102260003A scheme, still manually directly can mention reactor, carry out toppling over and inspect in reactor outside, process above-mentioned reunion situation, so, if likely expand its capacity, just so to say, if be the several cubes of large-scale reactors to dozens of cube or huge reactor, that is not obviously topple over it by hand to operate the problem that can tackle, so, for the situation that this catalyst particles is reunited mutually, how to realize instant original position to dispose, it is exactly a technical problem, this is problem nine.

Problem ten:

In the apparatus structure of the disclosure number expressed by the Chinese patent application case of CN102260003A, for shielding the silica tube protecting electrodeless ultraviolet lamp, its outer wall, refer to the outer wall of silica tube, through for a long time with the contact of processed trade effluent, unavoidably incrustation gradually, the long-pending material of dirt certainly mainly not easily the mineral-type impurity that touches by light-catalyzed reaction, because of the incrustation phenomenon that this mechanism is formed, be easy to be observed after equipment long-play; Be attached to the dirty lamination of described silica tube outer wall, although just very thin one deck, be also enough to cause significant stop to the ultraviolet radiation of electrodeless ultraviolet lamp, this significantly reduces causing the actual treatment effect of this microwave and photo catalysis reaction treating device; The bubble of dispersed ascension in its reactor is because too disperseing, wash away strength more weak, if only rely on this bubble comparing dispersion to maintain the bright and clean of silica tube surface, really undertake to do what is apparently beyond one's ability, in other words, this compares the bubble of dispersion, and what it was more weak washes away the incrustation process that strength is still not enough to stop completely this silica tube surface; In the use procedure of laboratory yardstick, above-mentioned fouling problem is subtle, but on industrial application yardstick, this fouling problem certainly will highlight; Therefore, how under the prerequisite of not tearing machine open, immediately, effectively remove the dirty lamination on this silica tube outer wall, maintain the high-level efficiency continued of this microwave and photo catalysis treatment unit, this problem is also very important, and this is problem ten.

11 of problem:

This problem for address above nine of problem its problem that derives.Speak of above, under some pH value regulates not in place, the inappropriate situation of pH value in advance, titanium dioxide fine particles is easily reunited, and then affects its effective working interface area, affects its photochemical catalysis usefulness; The section of those the relatively small particle size among its suitable catalyst particle size range of especially this CN102260003A scheme being touched upon, easily occur especially because of pH value presetting not in place, pH value is incorrect and the agglomeration traits that causes; For the situation that this catalyst particles is reunited, be immediately to adopt an effective measure, the depolymerization carried out for coacervate operates; Based on this its framework of CN102260003A scheme, operator cannot perceive the situation that described reunion occurs inside reactor immediately, thus also cannot make instant disposal, thus, can only should be that its limited usefulness of reactor of small scale structures can reduce further by factors restriction; Therefore, among the application running of reactor, particularly, for example, among the application running of possible large-scale reactor or huge reactor, the how immediately awareness inside reactor catalyst particles main inducing parameter of reuniting, be a key issue, this is 11 of problem.

12 of problem:

Based on this its framework of CN102260003A scheme, due to the restriction of factors addressed, its reactor can only be the smaller reactor of undersized treatment capacity, the useful size of reactor inner chamber is certainly also smaller, can be used among its structure of reactor inner chamber settling the spatial altitude of curtain type film assembly approximately also just at 30 cm, so, even if just adopt the curtain type film assembly of very small breadth, also almost plug can only be headed on inside reactor in two up and down, due to the little treatment capacity of reactor, small size, so, after its DeR completes, under the situation getting rid of liquid from inside to outside, its curtain type film assembly exposes in atmosphere unavoidably, although each time exposed can not length, but, the accumulation result often bought and sold, this curtain type film assembly is made to contact with air too much exactly, its normal service requirements of curtain type film assembly, will use under complete submerged state, that is, must be that hygrometric state uses, if curtain type film assembly contacts with air too much, it can be made more aging than more quickly, Performance comparision is decayed rapidly, and the situation that this curtain type film assembly contacts with air too much, under this its framework of CN102260003A scheme, cannot avoid, therefore, how protecting the membrane module for tackling catalyzer, can use in normal conditions, the too much contact with air can be avoided, to safeguard its normal usage energy, guarantee its normal service life, the problem faced of needs exactly, this is 12 of problem.

13 of problem:

Based on this its framework of CN102260003A scheme, among its running, by the granules of catalyst that curtain type film assembly is tackled, a part is at curtain type film assembly surface deposition, and another part is then trapped among liquid object phase, and in causing liquid object mutually thus, granules of catalyst concentration progressively raises along with the progressively reduction of liquid phase volume, this is for follow-up membrane sepn, its membrane sepn load also can raise thereupon gradually, and the problem that before and after this membrane sepn load, difference is excessive needs to solve, and this is 13 of problem.

14 of problem:

Based on this its framework of CN102260003A scheme, among its running, to the water pump of reactor inner chamber filling waste water, itself cannot differentiate inside reactor water level height, operator can only rely on experience or range estimation to close the pump motor of this filling waste water in time, if experience error or range estimation respond not prompt enough, be easy to the situation occurring overflowing reactor because waste water filling is excessive, cause unnecessary trouble thus; On the other hand, after DeR terminates, need by inside via curtain type film assembly to extracardiac pumping, failing to know under the situation of inside reactor water level, completely rule of thumb or can only estimate and judge the opportunity of closing down water pump, and operate like this, obviously unreliable, very easily because experience error or range estimation respond not in time, cause this to draw water cannot to shut down in time with water pump, and this dry tap, idle running be easy to cause this pump motor that draws water to burn, this problem can not be out in the cold, and this is 14 of problem.

Summary of the invention

Technical problem to be solved by this invention is, for one of problem addressed above, two, three, four, five, six, seven, eight, nine, ten, 11,12,13,14, and take into account collaborative, the coupling that microwave exposure encourages and photochemical catalysis is degraded, research and develop a kind of novel waste water microwave and photo catalysis degradation treatment device that can solve described series of problems totally.

The present invention is solve the technical problem by following scheme, the program provides a kind of Photocatalytic wastewater degradation device safeguarding membrane module by weak cavitation high frequency ultrasound, the structure of this device comprises reactor, this reactor is the container of a hollow, its appearance profile of this reactor is cube shaped, cuboid, cylindrical, the cylindroid bodily form, the polygon prism bodily form, spherical or the ellipsoid bodily form, many micro porous aeration heads are equiped with at the bottom position of this reactor inner chamber, and, silica tube, this silica tube is erected at the cavity position of described reactor, the two ends of this silica tube are equiped with shutoff headkerchief, two the described shutoff headkerchieves laying respectively at silica tube two ends all offer ventilation interface, and, electrodeless ultraviolet lamp, this electrodeless ultraviolet lamp is bar-shaped, ring-type, spherical, starfish shape or sea urchin shape, the quantity of this electrodeless ultraviolet lamp is at least more than one, this quantity is at least all erected at the inside of described silica tube at more than one electrodeless ultraviolet lamp, and, pneumatic pump, this pneumatic pump is installed in the outside of reactor, ventilation interface on its one end capping head of described silica tube connects via breather line and through the wall of reactor with the air outlet of described pneumatic pump, ventilation interface on its other end shutoff headkerchief of described silica tube connects with the micro porous aeration head being positioned at reactor intracavity bottom via another breather line, and, microwave generator, this microwave generator is installed in the outside of reactor, this microwave generator is magnetron, and, waveguide, this waveguide is the component for transmitting microwave, one end of this waveguide and described magnetron UNICOM, the other end of this waveguide is through the inner chamber of the wall orientating reaction device of reactor, and, water pump, this water pump is positioned at the outside of reactor, this water pump is used for the pending waste water of pumping, its water outlet of this water pump leads to the inner chamber of this reactor, exhaust port is offered above this reactor, emphasis is, that one end of the wall through reactor of this waveguide extends much further into the inner chamber of reactor, and, the structure of this reactor also comprises the microwave exposure spatial domain constrainer of the caged of metal material, containing many holes or mesh in the microwave exposure spatial domain constrainer of this caged, the function of the microwave exposure spatial domain constrainer of this caged is constraint microwave exposure spatial domain, the microwave exposure spatial domain constrainer of the caged of this metal material is a metal cage, this metal cage is installed in the cavity position of reactor, this waveguide go deep into that port of reactor inner chamber and the inner chamber UNICOM of this metal cage, described UNICOM refers to connection in microwave channel meaning and through, described silica tube is the inside being erected at this metal cage, article two, described breather line all penetrates the wall of this metal cage, the locations of structures of the wall of this metal cage is the locations of structures between reactor wall and silica tube outer wall, and, circulation conductor, the function of this circulation conductor is the ascension path containing ozone-air bubble of pack from micro porous aeration head, and pull strength to the cyclic motion of leading inside reactor liquid to make relative big scale by the bubble flow of ascension because strengthening by pack, this circulation conductor is installed in the cavity position of described reactor, its profile shape of this circulation conductor simple and easy speaking trumpet that seemingly two ends are through, its osculum end of this circulation conductor vertically upward, this its big opening end of circulation conductor vertically downward, this its axis of circulation conductor is mutually vertical with the inner chamber bottom surface of described reactor, its locations of structures of osculum end vertically upward of this circulation conductor is immediately below described metal cage, transverse distance between its edge of big opening end vertically downward of this circulation conductor and reactor intracavity sidewall is between 5 centimetres and 300 centimetres, fore-and-aft distance between its edge of big opening end vertically downward of this circulation conductor and reactor inner chamber bottom surface is between 5 centimetres and 100 centimetres, and, described many micro porous aeration heads are installed in its big opening end edge of described circulation conductor with gathering within reactor inner chamber bottom surface vertical projects the scope drawn a circle to approve, and, topping-up pump, this topping-up pump is mixed with the water after the degraded of a large amount of catalyst particles for supercharging pumping, its water-in of this topping-up pump is via ventilating water pipe and connect with the inner chamber of reactor through the wall of reactor, and, the preposition prefilter of back flush type, its water-in of the preposition prefilter of this back flush type connects with the water outlet of described topping-up pump, and, back flush type tubular fibre membrane microfiltration strainer, its pure water inlet of the preposition prefilter of described back flush type connects via the water-in of first water purifying valve with this back flush type tubular fibre membrane microfiltration strainer, and, back flush type hollow-fibre membrane ultra filtration filter, described its pure water inlet of back flush type tubular fibre membrane microfiltration strainer connects via the water-in of second water purifying valve with this back flush type hollow-fibre membrane ultra filtration filter, this its pure water inlet of back flush type hollow-fibre membrane ultra filtration filter connects with the entrance end of the 3rd water purifying valve, the water side of the 3rd water purifying valve is the water side of outlet terminal water purification, and, catalyst underflow transition tank, this catalyst underflow transition tank is the tank body of a hollow, this catalyst underflow transition tank is used for temporarily depositing the higher water body of catalyst concentration that its backwashing procedures of described strainer discharges, the catalyst underflow refluxing opening being positioned at this its intracavity bottom of catalyst underflow transition tank leads to the inner chamber of reactor via catalyst underflow reverse flow valve, this catalyst underflow reverse flow valve is the valve body for this catalyst return flow line of on-off control, its sewage outlet of the preposition prefilter of described back flush type leads to the inner chamber of this catalyst underflow transition tank via first sewage valve, described its sewage outlet of back flush type tubular fibre membrane microfiltration strainer leads to the inner chamber of this catalyst underflow transition tank via second sewage valve, described its sewage outlet of back flush type hollow-fibre membrane ultra filtration filter leads to the inner chamber of this catalyst underflow transition tank via the 3rd sewage valve, each described strainer is all for retaining catalyst particles, each its sewage outlet of described strainer is all converted as by the recycling delivery port retaining catalyst particles, and, ozone sensor, the sampling port of this its stopple coupon of ozone sensor is close to described exhaust port or probes into the inside of described exhaust port, and, ozone content indicating meter, the composite structure of ozone attention device or ozone content indicating meter and ozone attention device, this ozone sensor is via Article 1 cable and this ozone content indicating meter, ozone attention device or ozone content indicating meter connect with the composite structure of ozone attention device, and, power-supply controller of electric, its output electric signal of this ozone sensor connects with this power-supply controller of electric via Article 2 cable, this power-supply controller of electric connects with described magnetron via Article 3 cable, this power-supply controller of electric connects with described pneumatic pump via Article 4 cable, this power-supply controller of electric is the power-supply controller of electric that the described electric signal that can receive according to it carries out power switch action, and, one group of ultrasonic transducer, this group of ultrasonic transducer is at least containing a ultrasonic transducer individuality, this group of ultrasonic transducer is used for radiate low ultrasonic wave, this low-frequency ultrasonic waves refers to the ultrasonic wave of frequency in 20kHz-60kHz scope, this reactor inner chamber bottom surface is hollow gradually to central zone by periphery, described its gradient hollow is between 5 degree and 35 degree, this group of ultrasonic transducer is be installed in its part reactor diapire corresponding to hollow innermost of this reactor inner chamber bottom surface outer side position or medial surface position with attaching, and, HF oscillation electric signal transmission cable, one end and this one group of ultrasonic transducer of this HF oscillation electric signal transmission cable connects, and, HF oscillation electric signal producer, the other end of described HF oscillation electric signal transmission cable connects with this HF oscillation electric signal producer, and, pH pops one's head in, and, pH analyser, this pH pops one's head in and pH analyser is coupled to each other, this pH analyser and connecting with warning horn, this warning horn is used for giving the alarm to the pH value situation of transfiniting, this pH probe stretches into reactor inner chamber through the top of reactor, and, through the micropore stainless steel sleeve that powder sintering process is made, this micropore stainless steel sleeve is cap for brush shape, this micropore stainless steel sleeve is positioned at reactor inner chamber, this its blind end of micropore stainless steel sleeve down, this its opening end of micropore stainless steel sleeve upward, its opening end upward of this micropore stainless steel sleeve connects with reactor head via buffering isolating pad, this pH its that part stretching into reactor inner chamber of popping one's head in probes within this micropore stainless steel sleeve, this its material of buffering isolating pad is viton or silicon rubber, and, two pairs of dry-reed type ball float level controllers, these two pairs of dry-reed type ball float level controllers all extend into the inner chamber of reactor through the top of reactor, a pair dry-reed type ball float level controller is wherein connected with the power cable of described water pump by a rly., wherein another is connected with the power cable of described topping-up pump by another rly. dry-reed type ball float level controller, and, tank, described back flush type tubular fibre membrane microfiltration strainer and the equal submergence of described back flush type hollow-fibre membrane ultra filtration filter are placed within this tank, another group ultrasonic transducer is equiped with bottom its sidewall of this tank or its, this another group ultrasonic transducer at least contains a ultrasonic transducer individuality, this another group ultrasonic transducer is used for radiate high frequency ultrasonic wave, this high-frequency ultrasonic refers to the ultrasonic wave of frequency in 100kHz-12MHz scope, this another group ultrasonic transducer connects with another HF oscillation electric signal producer.

This catalyst underflow reverse flow valve is the valve body for this catalyst return flow line of on-off control; The opening-closing valve of commercially available various fluid lines, can be applicable to the needs of this locations of structures, and its concrete type selecting can determine as required.

Described dry-reed type ball float level controller, the art-recognized meanings of itself is known for the professional of fluid level controller manufacturing; Described dry-reed type ball float level controller is commercially available.

Described rly. is commercially available.

Valve body on all fluid passages of this case, can choice for use magnetic valve, when choice for use magnetic valve, being arranged on a control panel, so, can realizing long-distance centralized control easily by being concentrated by long-range cable.

Involved pH probe is commercially available; Described pH probe is also known as pH sensor; PH probe or itself art-recognized meanings of day pH sensor are known.

Involved pH analyser is commercially available; Itself art-recognized meanings of pH analyser is known.PH can be utilized to detect, picking up, showing pH value information of any model made a general reference in this case pH analyser one word, and externally can export pH and to be correlated with the instrument of electric signal, market is sold simple and easy or complicated but all meet the pH correlate meter of this basic demand it is various in style, can select as required.

Involved its thickness of buffering isolating pad is not limit; But have a preferable range, the preferable range of this its thickness of buffering isolating pad is between 1 millimeter to 8 millimeters.

Involved viton and their art-recognized meanings of involved silicon rubber own are known; Involved viton and involved silicon rubber, market is all on sale.

Involved its wall thickness of micropore stainless steel sleeve is not limit; But also have the preferable range that associated, the preferable range of this its wall thickness of micropore stainless steel sleeve is between 3 millimeters to 30 millimeters.

An involved powder sintered word, the art-recognized meanings of itself, for the professional of metallurgical technology field, is known.

Involved micropore stainless steel sleeve, can to the customization of relevant powder metallurgy specialized factory.

Sleeve-shaped micropore Stainless Steel Filter conversion powder sintering process can made is the micropore stainless steel sleeve described in this case; The sleeve-shaped micropore Stainless Steel Filter that described powder sintering process is made is commercially available.

The aperture of involved its micropore of micropore stainless steel sleeve is not limit; But the aperture of this micropore is also have a preferable range, the preferable range of this micropore size is between 0.5 micron to 50 microns.

Its opening end upward of this micropore stainless steel sleeve connects with described container top via buffering isolating pad, refers to the connection that this connection is flexibility, in this connection part, has described buffer compartment mediate from padding.

Described warning horn can send the device that audio frequency warns message or optical frequency warning message by the electric signal received by it; Itself art-recognized meanings of described warning horn is known; Described warning horn is commercially available.

Itself art-recognized meanings of ultrasonic transducer one word is known for the professional in ultrasonic technology field.

Itself art-recognized meanings of HF oscillation electric signal transmission cable one word is also known for the professional in ultrasonic technology field.

Ultrasonic transducer and HF oscillation electric signal transmission cable market all on sale; Described ultrasonic transducer and HF oscillation electric signal transmission cable etc. also can to ultrasonic transducer specialized factory and the customizations of cable specialized factory.

Itself art-recognized meanings of HF oscillation electric signal producer one word is also known for the professional in ultrasonic technology field; Various HF oscillation electric signal producer all has commercially available; Described HF oscillation electric signal producer also can customize to ultrasonic wave equipment specialized factory.

Involved ozone sensor is commercially available; Also can customize to ozone sensor specialized factory as required.

Involved ozone content monitor market is on sale; Also can customize to ozone content indicating meter specialized factory as required; Ozone sensor producer also sells matching used ozone content indicating meter usually.

Involved ozone attention device, refers to warn the mechanism for warning had both at the same time both sound or alarm flashing or warning sound combines with alarm flashing; Ozone attention device is commercially available; Also can customize to ozone attention device specialized factory; Matching used ozone attention device also can be sold usually by ozone sensor producer.

This power-supply controller of electric involved is the power-supply controller of electric that the described electric signal that can receive according to it carries out power switch action; The electric signal that can receive according to it carries out the power-supply controller of electric of power switch action only with regard to its circuit engineering itself, is ripe, known technology; Described power-supply controller of electric is commercially available; Also commercially available power-supply controller of electric can be utilized to change a social system as required; Described power-supply controller of electric also can customize to power-supply controller of electric specialised manufacturers; Its specialised manufacturers of the electron device of power-supply controller of electric and so on spreads all over the world.

Described its outline shape of circulation conductor or also can be described as profile shape like the cooling tower in fuel-burning power plant.

In this case statement, retort one word refer to implication and reactor one word to refer to implication identical.

Described metal material one word, the art-recognized meanings of itself is known.

Described magnetron, and the expression such as waveguide device, waveguide, waveguide are first-class, its art-recognized meanings is known for the professional of microwave technical field.Described magnetron, and waveguide etc., all have commercially available; Described magnetron, and waveguide etc., also can customize to specialized factory; Described waveguide can certainly self manufacture as required, and this making is for the professional of microwave technical field, and the making of waveguide device is simple.

Described silica tube, its art-recognized meanings is known; Described silica tube is commercially available; Described silica tube also can manufacture specialized factory's customization to quartz.

Described electrodeless ultraviolet lamp, its art-recognized meanings is known for the professional of light sources technical field; Described electrodeless ultraviolet lamp is commercially available; Its shape of described electrodeless ultraviolet lamp, size, inner institute blanketing gas, lamp wall material, lamp wall thickness, etc., also according to specific design needs, can customize to electric light source manufacturing concern.Certainly, also can self manufacture.The making of electrodeless ultraviolet lamp is for possessing the professional of electric light source expertise, and its manufacturing technology is known.

Described micro porous aeration head, its art-recognized meanings is known, and described micro porous aeration head is commercially available.

Described water pump and topping-up pump are all the pumps for carrying clear or turbid all kinds of water, and certainly, its pumping pressure can come to select arbitrarily as required, and various pump market is all on sale; This case adopts different names, just conveniently states, conveniently distinguishes the pump of each different structure position.

Described water purifying valve, sewage valve, wash water valve are all water valves, and various water valve market is all on sale; About water valve, itself art-recognized meanings of this word is known; This case adopts different titles, just conveniently states, conveniently distinguishes the water valve of each different structure position.

Preferred its material of this metal cage is stainless steel, certainly, selects other metal material to be also that this case allows; The hole spread all in this metal cage self structure or the preferable range of its bore of mesh are between 0.5 centimetre and 3.0 centimetres, and certainly, if must select hole or the mesh of other bore outside this preferable range, that is also that this case allows.

Preferred described metal cage can be through mold pressing, welding, riveted joint or splice by the complementary accessory such as screw, nut the metal cage made by stainless steel punched-plate.

Preferred described metal cage also can be weave by Stainless Steel Wire the metal cage made.

Application this case device, waste water in reactor and by reactor bottom bubbling on can enter region between metal cage and silica tube through numerous hole of metal cage or mesh containing ozone-air, waste water participates in the effect of microwave light chemical coupling catalyzing oxidizing degrading in the lump with containing ozone-air in this region, and the waste water be subject to after certain Degradation, again can freely through numerous hole of metal cage or mesh by the inner outwards effusion of metal cage, so cyclically, reciprocally, automatically constantly carry out Degradation, until whole waste water of whole inside reactor all reach degraded index.

Distance between the inwall of this case metal cage and silica tube outer wall does not limit, and this distance can be arbitrary distance; But the preferred value of the distance between the inwall of this metal cage and the outer wall of silica tube is between 3.0 centimetres and 30.0 centimetres.

The further preferred numerical range of the distance between the inwall of this metal cage and the outer wall of silica tube is between 10.0 centimetres and 20.0 centimetres.

The material of described circulation conductor is not limit, and the material of described circulation conductor can be such as tetrafluoroethylene material, glass material, ceramic material, metal material, etc., but its preferred material of circulation conductor is stainless steel.

Can offer sewage draining exit in the bottom of described reactor, this sewage draining exit may be used for deslagging, removes contamination, and can install wash water valve at this Location for Sewage, and described wash water valve is the valve controlled for blowdown.Described sewage draining exit and wash water valve are not necessarily.

In this case device, by means of metal cage to the isolation in microwave exposure spatial domain and restriction, region between metal cage outer wall and reactor wall, define the direct effect region that does not belong to photochemistry and microwave coupling catalyzed degradation, because microwave cannot have influence on this region substantially, the unhelpful dissipation of energy that microwave causes because the simple pyrogenicity of waste water absorbs in this region is contained, so, no matter how this Domain Volume expands, and is all to allow; Based on this, the structure of this case device, allow the single tank designing treatment capacity expanding described reactor significantly, allow the volume expanding reactor significantly, certainly, be limit microwave exposure spatial domain by metal cage, and the design volume in spatial domain significantly between expanded metal cage outer wall and reactor wall realize.

In this case structure, described many micro porous aeration heads are installed in its big opening end edge of described circulation conductor with gathering within reactor inner chamber bottom surface vertical projects the scope drawn a circle to approve.Be positioned at described many micro porous aeration heads that described vertical projects within the scope drawn a circle to approve, both can be tiling be installed within scope that reactor intracavity bottom draws a circle to approve, certainly, within this delineation scope, also another kind of more intensive installing mode can be taked, described more intensive installing mode, refer to, described many micro porous aeration heads can be established in the enterprising windrow superimposed of three-dimensional, in this way they be gathered the cluster-shaped micro porous aeration head cluster being formed and there is three-dimensional stacked framework; This kind of cluster-shaped micro porous aeration head cluster can hold the comparatively huge micro porous aeration head of quantity; This kind of mode can carry larger air flux.

The preferable range in its filter opening aperture of the preposition prefilter of described back flush type is between 5 microns and 300 microns, and certainly, other the preposition pre-filtering aperture outside this preferable range is selected also to be that this case allows; The preferable range in described its filter opening aperture of back flush type tubular fibre membrane microfiltration strainer is between 25 nanometers and 1000 nanometers, and certainly, it is also that this case allows that other micro-filtration aperture outside this preferable range is selected; The preferable range in described its filter opening aperture of back flush type hollow-fibre membrane ultra filtration filter is between 15 nanometers and 2 nanometers, and certainly, it is also that this case allows that other ultrafiltration aperture outside this scope is selected.

The preposition prefilter of described back flush type also claims back flush type fore filter or back flush type prefilter, and itself art-recognized meanings of the preposition prefilter of described back flush type is known; The preposition prefilter of described back flush type is commercially available.

Described back flush type tubular fibre membrane microfiltration strainer is the strainer being suitable for micro-filtration; Itself art-recognized meanings of described micro-filtration one word is known; Itself art-recognized meanings of described back flush type tubular fibre membrane microfiltration strainer, for the professional of technical field of membrane separation, is known; Described back flush type tubular fibre membrane microfiltration strainer is commercially available.

Described back flush type hollow-fibre membrane ultra filtration filter is the strainer being suitable for ultrafiltration; Itself art-recognized meanings of described ultrafiltration one word is known; Itself art-recognized meanings of described back flush type hollow-fibre membrane ultra filtration filter, for the professional of technical field of membrane separation, is known; Described back flush type hollow-fibre membrane ultra filtration filter is commercially available.

In ultrafiltration link, this back flush type hollow-fibre membrane ultra filtration filter can be the form only having a back flush type hollow-fibre membrane ultra filtration filter monomer; Certainly, this back flush type hollow-fibre membrane ultra filtration filter also can be made up of in the connection parallel with one another of more than one back flush type hollow-fibre membrane ultra filtration filter monomer quantity.

Express an involved word in parallel, the art-recognized meanings itself referred to is clearly.

Express involved monomer one word, refer to itself function and structure equipment individuality completely.

Similarly, in micro-filtration link, this back flush type tubular fibre membrane microfiltration strainer can be the form only having a back flush type tubular fibre membrane microfiltration strainer monomer; Certainly, this back flush type tubular fibre membrane microfiltration strainer also can be made up of in the connection parallel with one another of more than one back flush type tubular fibre membrane microfiltration strainer monomer quantity.

The connecting pipeline of the water-in of described back flush type tubular fibre membrane microfiltration its pure water inlet of strainer and described back flush type hollow-fibre membrane ultra filtration filter can install second topping-up pump further, and this second topping-up pump is for augmenting hydraulic pressure to meet the intake pressure demand of described back flush type hollow-fibre membrane ultra filtration filter; This second topping-up pump not necessarily.

The structure of this case device, can also comprise some annexes, described annex such as: the cooling water recirculation system be connected with magnetron cooling duct or air cooling system; Described annex is also such as being fixed on the fixed support within silica tube by electrodeless ultraviolet lamp; Described annex is more such as being fixed on support member within reactor or hanging component by described metal cage; Described annex also such as carrying out support member or the hanging component of unsettled location within reactor by described circulation conductor; Described annex can certainly comprise the anchor or the suspension bracket that described silica tube are carried out within described metal cage unsettled location; Described annex is such as installed in again the strainer for tackling impurity of reactor influent waste water end, etc.

Advantage of the present invention is, electrodeless ultraviolet lamp and screen thereof being protected with metal cage shrouds in it with silica tube, metal cage retrains the effect spatial domain of microwave simultaneously, so, spatial domain between silica tube outer wall and metal cage inwall defines the wastewater degradation region of a microwave and photochemical catalysis coupling, and, the multiple hole of metal cage or the structure of many meshes, do not affect waste water and reactor bottom bubbling and on air freely into and out of this spatial domain; And the spatial domain between metal cage outer wall and reactor wall, the simple pyrogenicity of waste water water body to microwave absorbs to be contained, significantly weakens the unhelpful dissipation of microwave energy thus; By significantly expanding this design volume without microwave exposure spatial domain, the significantly expansion of single tank reactor volume can be realized, allow reactor list tank wastewater treatment capacity significantly to promote, and need not worry that microwave energy dissipates too much in unhelpful waste water water body temperature-rise effect again.

Based on the structure of this case, design volume and single tank wastewater treatment capacity of device can be expanded to several cubes to dozens of cube; Based on this structure of this case, the frequency of a complete set, substantial length of operation can be reduced significantly, be conducive to the saving of human and material resources.

Its existence of described circulation conductor in this case apparatus structure, the liquid stream of inside reactor can be guided to rise fast along the internal passages of this circulation conductor, and impact, by microwave and photo catalysis coupling reaction region after, spread to surrounding by top area, sink via neighboring area, arrive reactor intracavity bottom region, then converge to the internal passages of circulation conductor through the hydraucone of circulation conductor, continue its circulation; Certainly, by pack ascension bubble flow pull the major impetus that strength is this circulation; The liquid circulation campaign of this relative big scale guided, contributes to the homogenizing guaranteeing inside reactor liquid degradation reaction process, and this, for this case large-scale DeR device so, is necessary.

Its UV source of this case device relies on microwave excited electrodeless ultraviolet lamp, the uv-radiation feature of this lamp-type can accomplish high-power, high strength exactly, but the Effective depth penetration of ultraviolet in liquid water body only has an appointment 20 centimetres, therefore, region within silica tube periphery about 20 cm distance is effective area, and this region is exactly the efficient region of photochemical catalysis oxidative degradation; This case device is with described circulation conductor, pack is from the bubble flow of numerous micro porous aeration head, make it intensively towards silica tube periphery photochemical catalysis oxidation effective area release, this mode contributes to the oxygen atmosphere supply intensity improving effective area described in silica tube periphery, contributes to accelerating ultraviolet catalyzing oxidizing degrading reaction process.

Based on this case structure, the capacity of reactor or treatment capacity can significantly be expanded, describedly significantly to expand, that design volume by significantly expanding microwave zero irradiation zone or the weak irradiation zone of microwave realizes, so, from the appearance, the lateral dimension of reactor, longitudinal size is all significantly to expand certainly, therefore, inside reactor is contained the liquid degree of depth and can be deepened significantly similarly, such as, can deepen to one meter, two meters, three meters, four meters, five meters, six meters, even ten meters, etc., when containing the liquid degree of depth and being enough dark, containing ozone-air bubble ascension path sufficiently long, the time sufficiently long contacted with water body is steeped containing ozone-air, just can with abundant reducing substances fortune in its ascension process, and thoroughly or be close to and exhaust ozone contained in bubble up hill and dale, thus, incomplete problem is utilized to be solved containing ozone composition oxidation potential in ozone-air bubble, and, because long ascension path causes ozone depletion, the ozone that can cause environmental pollution would not be entrained with again in reactor tail gas.

This case with external multistage filter, reach the interception step by step counting the collision fragment of the small scale of nanometers from coacervate macrobead to ten to catalyst particles, be close to reclaim up hill and dale, reuse photocatalyst, be close to and take precautions against catalyst loss and the secondary pollution that causes up hill and dale; This is interception structure secondary filter can be protected to make its filtration passage from the rigid obstruction of large particulate matter step by step; Wherein the pre-filtering aperture of the first step is between 5 microns and 300 microns, and its aperture of the micro-filtration of the second stage is between 25 nanometers and 1000 nanometers, and its aperture of the ultrafiltration of the third stage is between 15 nanometers and 2 nanometers; Such interception structure, can fully tackle nano level photocatalyst, and it can be close to certainly tackles the catalyzer that this median size of gas phase titanium dioxide P25 is 21 nanometers up hill and dale; Address above, the gas phase titanium deoxide catalyst of nano level P25 and so on, it is the commercially available catalyzer that can buy in a large number, also be weather resistance, stability, the Known good photocatalyst of UV-light wave band photocatalysis performance, certainly, it is also in fact pay the utmost attention to the photocatalyst selected in industrial scale applications; This case catalyzer interception structure matches with the virtual rating of catalyzer market supply, actual kind, merges mutually.

And, this case catalyzer interception mechanism is external, its filter core need not be soaked in the liquid of the Strong oxdiative of inside reactor, strong uv irradiation, therefore, can need not consider the tolerance to uv irradiation, Strong oxdiative condition completely, like this, select just without the restriction in extraordinary tolerance in filter core material, can select in more vast optional material kind, and the material of PVDF costly and so on need not be confined to completely again.

Involved strainer at different levels all has commercially available, commercially available strainers at different levels, the discharge outlet of draining-off sewage when its sewage draining exit is exactly back flushing, this case uses this kind of back flush type to equip, be used to tackle catalyst particles step by step, originally the sewage draining exit of commercially available equipment, is used delivery port again by recycling delivery port or backflow that conversion is used as by retaining catalyst particles in the present case.

Address above, based on this case structure, the capacity of reactor or treatment capacity can significantly be expanded, describedly significantly to expand, that design volume by significantly expanding microwave zero irradiation zone or the weak irradiation zone of microwave realizes, so, from the appearance, the lateral dimension of reactor, longitudinal size is all significantly to expand certainly, therefore, inside reactor is contained the liquid degree of depth and can be deepened significantly similarly, such as, can deepen to one meter, two meters, three meters, four meters, five meters, six meters, even ten meters, etc., when containing the liquid degree of depth and being enough dark, containing ozone-air bubble ascension path sufficiently long, the time sufficiently long contacted with water body is steeped containing ozone-air, just can with abundant reducing substances fortune in its ascension process, and thoroughly or be close to and exhaust ozone contained in bubble up hill and dale, thus, incomplete problem is utilized to be solved containing ozone composition oxidation potential in ozone-air bubble, and, because long ascension path causes ozone depletion, the ozone that can cause environmental pollution would not be entrained with again in reactor tail gas, only when being subject to processing when in water body, reducing substances and organic pollutant are degraded totally, again without can for the organic pollutant of ozone oxidation reaction in water body, those unnecessary ozone just likely no longer consume and to overflow liquid level through long ascension path, speak of above, one among the some problem that this case solves simultaneously, it is the circulation of the relative big scale of enhanced reactor internal liquid, systemic circulation that this enhances mechanism facilitates the uniformity of inside reactor liquid organic pollutants DeR process contained by it, thus, several cubes that allow in this case structure under the process capacity framework of dozens of cube even hundreds of cube volume, when inside reactor ullage has ozone to overflow, namely show that the DeR of inside reactor reaches terminal, and be the overall uniformity of internal liquid reach the terminal of DeR, this terminal point determining factor is the matching criteria that can provide with this case organization plan, this case is at its exhaust port position of reactor installing ozone sensor, ozone is detected in this locations of structures, just mean that inside reactor DeR is reached home, ozone sensor and connecting with the composite structure of ozone content indicating meter with ozone attention device or ozone content indicating meter or ozone attention device, for providing indication information accurately to operator, this case and by ozone sensor export electric signal send power-supply controller of electric to by cable, this power-supply controller of electric is also connected with magnetron and pneumatic pump respectively by cable, the described electric signal of power-supply controller of electric received by it carries out power switch action, certainly, its function mode is, receive the signal of the ozone effusion that ozone sensor sends at power-supply controller of electric when, the power supply of magnetron and pneumatic pump is led in automatic closedown, this case is organization plan according to this, can know the terminal of inside reactor DeR process in time, and organization plan according to this, when reaction reaches terminal, automatically close the power supply of magnetron and pneumatic pump, stop to inside reactor Implantation Energy in time, so can avoid unnecessary energy dissipation, and, this case is structure according to this, when DeR is reached home, the power supply of described magnetron and pneumatic pump can be closed in time, this power-off action is synchronous, the same generation process terminating in a flash ozone also, because ozone generation process is stopped in time, a large amount of ozone exceeding needs would not be had to disengage from described exhaust port, thus avoid unnecessary secondary pollution or day secondary pollution, its framework of this case determines the ozone that it does not have more than needed can for discharge.

Among this case structure, the microwave exposure spatial domain of its inside reactor is subject to forcing to cut off, limit, this case and adopt external cascading multiple stages backwash filter structure to tackle catalyst particles subtly, back flush type hollow fiber microfiltration membrane assembly wherein and back flush type polysulfone hollow fiber ultrafiltration membrane system all external and away from reactor core, microwave can not be irradiated to described membrane module completely, based on this structure of this case, got around the heat penetration erosion destruction problem that described point-like pierces formula completely, this problem is settled properly thus.

This case reactor inner chamber bottom surface is hollow gradually to central zone by periphery, described its gradient hollow is between 5 degree and 35 degree, and this case ultrasonic transducer is be installed in its part reactor diapire corresponding to hollow innermost of this reactor inner chamber bottom surface outer side position or medial surface position with attaching, address above, this case structure and be beneficial to the cyclic motion that driving a reaction device internal liquid makes relative big scale, the mode of this liquid circulation campaign is that peripheral liquid sinks, and middle liquid rises, and so constantly moves in circles, address above, under some pH value regulates not in place, the inappropriate situation of pH value in advance, titanium dioxide fine particles is easily reunited, and then affects its effective working interface area, affects its photochemical catalysis usefulness, especially for the section of the relatively small particle size of those among this particle size range, easily occur especially because of pH value presetting not in place, pH value is incorrect and the agglomeration traits that causes, for the situation that this catalyst particles is reunited, be immediately to adopt an effective measure, the depolymerization carried out for coacervate operates, when catalyst particles generation serious agglomeration, some heavier macro aggregates are wherein due to action of gravity, tend to gradually to the sedimentation of reactor intracavity bottom, in this case structure, reactor intracavity bottom is hollow structure, and, this case structure can make the cyclic motion of described relative big scale by driving a reaction device internal liquid, the effect of this systemic circulation campaign is together with the effect of ubiquitous natural gravity, the macro aggregate of sedimentation can be pushed away along the slope of described hollow structure and sweep to hollow innermost and make them be gathered in there, in this case structure, ultrasonic transducer is positioned at this hollow innermost locations of structures just, this hollow innermost region, it is the region that described macro aggregate is finally assembled, also be that ultrasonic wave can be damply minimum simultaneously, closest range ground, the most consumingly, depolymerization operating area is carried out most effectively for macro aggregate, this structure of this case can allow with minimum ultrasonic energy loss, realizes maximized ultrasonic depolymerization effect, this case is structure according to this, can converge coacervate sediment, and in the most concentrated region of coacervate sediment, implements depolymerization running, the ultrasonic wave being derived from reactor bottom also can be radiated other region in inside reactor liquid of course simultaneously, and the coacervate that be still in suspended state smaller to those plays unzipping, this case associated ultrasonic radiation mechanism is the mechanism that can start as required or close, the instant original position that this case thus achieves for this catalyst particles agglomeration traits is disposed.

For shielding the silica tube protecting electrodeless ultraviolet lamp in structure, its outer wall, refer to the outer wall of silica tube, through the long contact with processed trade effluent, unavoidable incrustation gradually, the long-pending material of dirt certainly mainly not easily the mineral-type impurity that touches by light-catalyzed reaction, because of the incrustation phenomenon of this mechanism formation, be easy to be observed after equipment long-play; Be attached to the dirty lamination of described silica tube outer wall, although just very thin one deck, be also enough to cause significant stop to the ultraviolet radiation of electrodeless ultraviolet lamp, this significantly reduces causing the actual treatment effect of this microwave and photo catalysis reaction treating device; The ultrasonic transducer of reactor bottom is positioned in this case structure, among the irregular depolymerization running carried out for accidental catalyst particles serious agglomeration situation, the ultrasonic wave of its radiation, certainly silica tube place locations of structures can also be arrived, this ultrasonic wave, while carrying out original position depolymerization running, also to carry out the ultrasonic clean scale removal work for the long-pending thing of silica tube surface dirt in the lump; And, the installation position of ultrasonic transducer is away from silica tube place locations of structures, ultrasonic radiation decays when arriving silica tube position to some extent, therefore, ultrasonic impact suffered by silica tube surface is low intensive ultrasonic impact, this low intensive ultrasonic impact can leniently scale removal, can avoid again or significantly weaken its silica tube surface smoothness that may cause of ultrasonic cavitation and lose; Based on this structure of this case, under the prerequisite of not tearing machine open, can immediately, effectively remove the dirty lamination on this silica tube outer wall, safeguard the high-level efficiency continued of this microwave and photo catalysis DeR device by this.

The pH value of wastewater degradation inside reactor water body is the key factor affecting catalyst dispersion stabilization; The pH probe installed in this case structure and the pH value display instrument of association thereof and the warning horn etc. that is associated, can when pH value exceeds catalyst stably dispersing scope, initiatively give the alarm, based on this structure of this case, relating operation personnel can the inside reactor of awareness immediately agglomeration be inclined to, and make instant disposal.Described micropore stainless steel sleeve in this case structure and installing mode thereof are the indispensable important components matched with this case principle and this case structure.

Membrane module in this case structure, be be in all the time complete submergence use operating mode among, membrane module is wherein had no chance ingress of air, keep the state of hygrometric state and complete submergence always, therefore, the membrane module easily occurred in that background technology is there will be no often to expose aerial situation, its applying working condition of membrane module in this case structure meets itself intrinsic working conditions requirement of membrane module more, be more conducive to safeguard its normal usage energy of membrane module, be more conducive to guarantee its normal service life of membrane module.

Catalyst underflow transition tank is set in this case structure, for temporarily depositing the liquid higher containing catalyst concentration washed away from each its backwashing procedures of back flush type strainer, thus avoid liquid higher for this catalyst concentration directly to fill with back reactor, so, avoid the problem that in inside reactor liquid, catalyst concentration progressively raises along with the extraction process of water purification, this extracts to its follow-up water purification and reduce the heavy burdens, there is so catalyst underflow transition tank structure, just can after water purification extraction procedure completes, again catalyst underflow is filled with back within reactor.

The dry-reed type ball float level controller connected with its power cable of water pump of described transport wastewater through rly. for a pair in this case structure, it exists, and can automatically avoid excessive filling waste water to reactor inner chamber, and avoids waste water to overflow reactor thus; Another is to the dry-reed type ball float level controller connected with its power cable of described topping-up pump through another rly., it exists, the liquid of inside reactor can be avoided excessively to be extracted cause this topping-up pump to dally, dryly to turn, booster motor so can be avoided to burn.

Any valve body on all fluid channels in this case structure, can choice for use magnetic valve, and these cables can be concentrated and be routed on a panel, this structure allows the valve body switch action corresponding to each program of long-distance centralized control.

In this case structure, described back flush type tubular fibre membrane microfiltration strainer and described back flush type hollow-fibre membrane ultra filtration filter are all submerged and are placed within described tank, another group ultrasonic transducer is equiped with bottom its sidewall of described tank or its, this another group ultrasonic transducer is used for radiate high frequency ultrasonic wave, this high-frequency ultrasonic refers to the ultrasonic wave of frequency in 100kHz-12MHz scope, and this another group ultrasonic transducer connects with another HF oscillation electric signal producer; In this case membrane module back flushing operation procedure, by means of the described high-frequency ultrasonic not having cavitation damage or cavitation damage extremely weak, backwashing procedures can be more mildly assisted to remove the catalyst of those obstinate attachments on membrane module working interface.

In brief, this case scheme, under the prerequisite taking into account described microwave and photochemical catalysis coupling, has reached the target that reactor design capacity is significantly expanded; Meanwhile, its structure also enhances the cyclic motion of the relative big scale of inside reactor liquid; Its structure solves ozone oxidation potentiality simultaneously and utilizes incomplete problem; Its structure and reached for nm-class catalyst particulate from its coacervate macrobead to the collision fragment of ten number nanometers widely, meticulous interception; The selection face also expanded because of this structure of its filter core material; Its DeR endpoint information can be known in time; Automatically the energy input to reactor can be closed when its DeR terminal; When its DeR terminal, also automatically stop the generation process of ozone in time, avoid unnecessary secondary pollution; Its structure also immediately original position can dispose accidental catalyst particles serious agglomeration situation, also simultaneously incidentally with silica tube surface described in the supersonic cleaning of the low intensive gentleness after the reduction of teletransmission appropriateness, the UV-light transparent performance keeping it excellent; Its structure also initiatively can detect agglomeration tendency, and gives the alarm when correlation parameter exceeds standard; Its structure is also conducive to membrane module and uses among complete submergence operating mode; Its structure and being deposited by the appropriate transition that catalyst underflow transition tank structure realizes catalyst underflow, overcomes the problem that before and after membrane sepn load, difference is excessive; Its structure and can achieve waste water perfusion water level automatic control; Its structure also when water purification is extracted into restricted water supply position, can close the power supply of described topping-up pump automatically, in time, is beneficial to the protection of booster motor; Its structure also assists backwashing procedures to remove the catalyst of obstinate attachment on membrane interface with low cavitation high-frequency ultrasonic.

This case structure solves one of described problem, two, three, four, five, six, seven, eight, nine, ten, 11,12,13,14 totally.

Accompanying drawing explanation

Fig. 1 is the brief schematic diagram of this case device perspective structure.

In figure, 1 is waste water pond, 2 is water pumps, 3 is circulation conductors, 4 is reactors, 5 is osculum ends of circulation conductor, 6 is regions that the microwave between reactor wall and metal cage outer wall can not arrive, 7 is metal cages, this metal cage i.e. described microwave exposure spatial domain constrainer, 8 is instruction microwave coupling photochemical catalysis DeR regions between metal cage inwall and silica tube outer wall, 9 is electrodeless ultraviolet lamps, 10 is exhaust ports, 11 is the waveguides going deep into reactor inner chamber, 12 is magnetrons, 13 is pneumatic pumps, 14, 18 is the different breather line in two-strip structure position respectively, 15, 17 is the shutoff headkerchief at silica tube two ends respectively, 16 is silica tubes, 19 is micro porous aeration heads, 20 is big opening ends of circulation conductor, 21 is wash water valves, 22 is sewage draining exits, 23 is that catalyzer backflow gathers pipeline, 24 is back flush type tubular fibre membrane microfiltration strainer sewage outlet with described catalyzer refluxes to gather and connects arm between pipeline, 25 is back flush type hollow-fibre membrane ultra filtration filter sewage outlet with described catalyzer refluxes to gather and connects arm between pipeline, 26 is back flush type preposition prefilter sewage outlet with described catalyzer refluxes to gather and connects arm between pipeline, 27 is back flush type hollow-fibre membrane ultra filtration filter pure water inlets and connect arm between water purifying tank, 28 is water purifying tanks, 29 is back flush type hollow-fibre membrane ultra filtration filters, 30 is connect arm between back flush type tubular fibre membrane microfiltration strainer pure water inlet with back flush type hollow-fibre membrane ultra filtration filter water-in, 31 is back flush type tubular fibre membrane microfiltration strainers, 32 is pure water inlets of the preposition prefilter of back flush type and connect arm between back flush type tubular fibre membrane microfiltration strainer water-in, 33 is the preposition prefilters of back flush type, 34 is connect arm between topping-up pump water outlet port with the preposition prefilter water-in of back flush type, 35 is topping-up pumps, 36 is stopple coupons of ozone sensor, 37 is ozone content indicating meters, the composite structure of ozone attention device or ozone content indicating meter and ozone attention device, 38 is ozone sensors, 39 is power-supply controller of electric, 40 is ultrasonic transducers, 41 is HF oscillation electric signal transmission cables, 42 is warning horns, 43 is cables pH analyser and warning horn linked up, 44 is pH analysers, 45 is cables linked up of pH analyser and pH being popped one's head in, 46 is pH probes, 47 is micropore stainless steel sleeves, 48 is catalyst underflow transition tanks, 49 is catalyst underflow reverse flow valves, some arrows in figure indicate the liquid flow direction of its contiguous pipeline when being in on-state.

Embodiment

In this case embodiment that Fig. 1 shows, the structure of this device comprises reactor 4, this reactor 4 is containers of a hollow, this its appearance profile of reactor 4 is in cube shaped, cuboid, cylindrical, the cylindroid bodily form, the polygon prism bodily form, spherical or the ellipsoid bodily form, bottom position at this reactor 4 inner chamber is equiped with many micro porous aeration heads 19, and, quartz ampoule 16, this quartz ampoule 16 is erected at the cavity position of described reactor 4, the two ends of this quartz ampoule 16 are equiped with shutoff headkerchief 15, 17, lay respectively at two described shutoff headkerchieves 15 at quartz ampoule 16 two ends, ventilation interface is all offered on 17, and, electrodeless ultraviolet lamp 9, this electrodeless ultraviolet lamp 9 is in bar-shaped, ring-type, spherical, starfish shape or sea urchin shape, the quantity of this electrodeless ultraviolet lamp 9 is at least more than one, this quantity is at least all erected at the inside of described quartz ampoule 16 at more than one electrodeless ultraviolet lamp 9, and, air pump 13, this air pump 13 is installed in the outside of reactor 4, ventilation interface on its one end capping head 15 of described quartz ampoule 16 connects via breather line 14 and through the wall of reactor 4 with the gas outlet of described air pump 13, ventilation interface on its other end shutoff headkerchief 17 of described quartz ampoule 16 connects with the micro porous aeration head 19 that is positioned at reactor 4 intracavity bottom via another breather line 18, and, microwave generator, this microwave generator is installed in the outside of reactor, this microwave generator is magnetron 12, and, waveguide 11, this waveguide 11 is for transmitting the member of microwave, one end and described magnetron 12 UNICOM of this waveguide 11, the other end of this waveguide 11 sees through the inner chamber of the wall orientating reaction device 4 of reactor 4, and, water pump 2, this water pump 2 is positioned at the outside of reactor 4, this water pump 2 is for the pending waste water of pumping, this its delivery port of water pump 2 leads to the inner chamber of this reactor 4, this reactor 4 top offers exhaust port 10, emphasis is, that one end of the wall that sees through reactor 4 of this waveguide 11 extends much further into the inner chamber of reactor 4, and, the structure of this reactor 4 also comprises the microwave irradiation spatial domain constrainer 7 of the caged of metal material, the microwave irradiation spatial domain constrainer 7 of this caged contains many holes or mesh, the function of the microwave irradiation spatial domain constrainer 7 of this caged is constraint microwave irradiation spatial domain, the microwave irradiation spatial domain constrainer 7 of the caged of this metal material is a metal cage, in this structure, what described microwave irradiation spatial domain constrainer and described metal cage referred to is same member, and use same label 7, this metal cage 7 is installed in the cavity position of reactor 7, that port that gos deep into reactor 4 inner chamber of this waveguide 11 and the inner chamber UNICOM of this metal cage 7, described UNICOM refers to connection and perforation in microwave channel meaning, described quartz ampoule 16 is the inside that is erected at this metal cage 7, article two, described breather line 14, 18 all penetrate the wall of this metal cage 7, the locations of structures of the wall of this metal cage 7 is the locations of structures between reactor 4 inwall and quartz ampoule 16 outer wall, and, circulation guide 3, the function of this circulation guide 3 is pack ascension paths containing ozone-air bubble from micro porous aeration head 19,And by the shuttling movement that pulls strength to lead reactor 4 internal liquid and do relative large scale of the bubble flow because of the ascension that strengthened by pack, this circulation guide 3 is installed in the cavity position of described reactor 4, the simple and easy cone that its profile shape of this circulation guide 3 connects like two ends, its osculum end 5 of this circulation guide 3 vertically upward, its big opening end 20 of this circulation guide 3 vertically downward, this its axis of circulation guide 3 is mutually vertical with the inner chamber bottom surface of described reactor 4, its locations of structures of osculum end 5 vertically upward of this circulation guide 3 is under described metal cage 7, lateral separation between its edge of big opening end vertically downward 20 and the reactor intracavity sidewall of this circulation guide 3 is between 5 centimetres and 300 centimetres, any set point value within this lateral separation scope is all available optional enforcement value, this lateral separation can be for example 5 centimetres, 30 centimetres, 120 centimetres, 152.5 centimetre, 200 centimetres, 300 centimetres, etc., fore-and-aft distance between its edge of big opening end vertically downward 20 and the reactor inner chamber bottom surface of this circulation guide 3 is between 5 centimetres and 100 centimetres, any set point value within this fore-and-aft distance scope is all optional available enforcement value, this fore-and-aft distance can be for example 5 centimetres, 25 centimetres, 52.5 centimetres, 69 centimetres, 88 centimetres, 100 centimetres, etc., and, described many micro porous aeration heads 19 are to be installed in its big opening end 20 edge of described circulation guide 3 within the scope that reactor 4 inner chamber bottom surface vertical projection is drawn a circle to approve with gathering, and, booster pump 35, this booster pump 35 is mixed with the water after the degraded of a large amount of catalyst particles for supercharging pumping, this its water inlet of booster pump 35 connects via ventilating water pipe and through the wall of reactor 4 with the inner chamber of reactor 4, and, the preposition prefilter 33 of back flush type, preposition its water inlet of prefilter 33 of this back flush type connects with the delivery port of described booster pump 35, and, back flush type doughnut membrane microfiltration filter 31, preposition its pure water inlet of prefilter 33 of described back flush type connects with the water inlet of this back flush type doughnut membrane microfiltration filter 31 via first water purifying valve, and, back flush type hollow-fibre membrane ultra filtration filter 29, described its pure water inlet of back flush type doughnut membrane microfiltration filter 31 connects with the water inlet of this back flush type hollow-fibre membrane ultra filtration filter 29 via second water purifying valve, this its pure water inlet of back flush type hollow-fibre membrane ultra filtration filter 29 connects with the entrance point of the 3rd water purifying valve, the water side of the 3rd water purifying valve is the water side of outlet terminal water purification, the water side of the 3rd water purifying valve can be used to directly connect with water purifying tank 28, water purifying tank 28 not necessarily, because also water purification directly can be delivered to and use water mechanism via pipeline, and, catalyst underflow transition tank 48, this catalyst underflow transition tank 48 is tank bodies of a hollow, this catalyst underflow transition tank 48 is for temporarily depositing described filter 29, 31, the water body that catalyst concentration ratio that 33 its backwashing procedures discharge is higher,The catalyst underflow refluxing opening that is positioned at this its intracavity bottom of catalyst underflow transition tank 48 leads to the inner chamber of reactor 4 via catalyst underflow return valve 49, this catalyst underflow return valve 49 is the valve bodies for this catalyst return flow line of switch control rule, preposition its outlet of sewer of prefilter 33 of described back flush type leads to the inner chamber of this catalyst underflow transition tank 48 via first sewage valve, described its outlet of sewer of back flush type doughnut membrane microfiltration filter 31 leads to the inner chamber of this catalyst underflow transition tank 48 via second sewage valve, described its outlet of sewer of back flush type hollow-fibre membrane ultra filtration filter 29 leads to the inner chamber of this catalyst underflow transition tank 48 via the 3rd sewage valve, the outlet of sewer of filters at different levels both can connect with the inner chamber of reactor 4 with independently pipeline is next separately independently of one another, another kind of processing method is, the outlet of sewer of filters at different levels also all can gather pipeline 23 with catalyst backflow and connect just like that as what legend was shown, the benefit of this connecting mode is open amount reactor 4 on can be reduced, each described filter 33, 31, 29 all for holding back catalyst particles, each described filter 33, 31, 29 its outlets of sewer are all converted as being subject to hold back the recycling delivery outlet of catalyst particles, and, ozone sensor 38, the sampling port of this its probe tube 36 of ozone sensor 38 is close to described exhaust port 10 or probes into the inside of described exhaust port 10, and, ozone content display, the composite structure 37 of ozone attention device or ozone content display and ozone attention device, this ozone sensor 38 is via Article 1 cable and this ozone content display, ozone attention device or ozone content display connect with the composite structure 37 of ozone attention device, and, power-supply controller of electric 39, this its output electric signal of ozone sensor 38 connects with this power-supply controller of electric 39 via Article 2 cable, this power-supply controller of electric 39 connects with described magnetron 12 via Article 3 cable, this power-supply controller of electric 39 connects with described air pump 13 via Article 4 cable, this power-supply controller of electric 39 is the power-supply controller of electric that according to the described electric signal that it receives, power switch action can be carried out, and, ultrasonic transducer 40, and, one group of ultrasonic transducer 40, this group of ultrasonic transducer 40 at least contains a ultrasonic transducer individuality, this group of ultrasonic transducer 40 is for radiate low ultrasonic wave, this low-frequency ultrasonic waves refers to the ultrasonic wave of frequency in 20kHz-60kHz scope, this group of ultrasonic transducer 40 is bottom outside position or the bottom inside positions that are installed in this reactor 4, this reactor 4 inner chamber bottom surface is hollow gradually to central area by periphery, described hollow its gradient is between 5 degree and 35 degree, this group of ultrasonic transducer 40 is lateral surface position or the medial surface positions that are installed in its part reactor diapire corresponding to hollow bosom of this reactor 4 inner chamber bottom surface with attaching, what legend was schematically shown is the form that is installed in lateral surface position, displaying in legend, is not had to be installed in the form of medial surface position, and, higher-order of oscillation electric signal transmission cable 41, one end and this one group of ultrasonic transducer 40 of this higher-order of oscillation electric signal transmission cable 41 connects,And, higher-order of oscillation electric signal generator, the other end of described higher-order of oscillation electric signal transmission cable 41 connects with this higher-order of oscillation electric signal generator, and, pH probe 46, and, pH analyzer 44, this pH probe 46 is coupled to each other with pH analyzer 44, this pH analyzer 44 and connecting with siren 42, this siren 42 is for giving the alarm to the pH value situation of transfiniting, reactor 4 inner chamber is stretched at the top that this pH probe 46 sees through reactor 4, and, the micropore stainless steel sleeve 47 of making through powder sintering process, this micropore stainless steel sleeve 47 is in cap for brush shape, this micropore stainless steel sleeve 47 is positioned at reactor 4 inner chamber, this its blind end of micropore stainless steel sleeve 47 down, this its openend of micropore stainless steel sleeve 47 upward, this its openend upward of micropore stainless steel sleeve 47 is via buffering isolating pad and reactor 4 top attachment, described buffering isolating pad is not drawn in legend, within these pH probe 46 its those parts that stretch into reactor 4 inner chamber probe into this micropore stainless steel sleeve 47, this its material of buffering isolating pad is fluorubber or silicon rubber, and, two pairs of dry-reed type ball float level controllers, these two pairs of dry-reed type ball float level controllers all extend into the inner chamber of reactor 4 through the top of reactor 4, a pair of dry-reed type ball float level controller is wherein connected with the power cable of described water pump 2 by a relay, wherein another connected with the power cable of described booster pump 35 by another relay dry-reed type ball float level controller, and, tank, within described back flush type doughnut membrane microfiltration filter 31 and the equal submergence of described back flush type hollow-fibre membrane ultra filtration filter 29 are placed in this tank, another group ultrasonic transducer is equiped with at its sidewall of this tank or its bottom, this another group ultrasonic transducer at least contains a ultrasonic transducer individuality, this another group ultrasonic transducer is used for radiate high frequency ultrasonic wave, this high-frequency ultrasonic refers to the ultrasonic wave of frequency in 100kHz-12MHz scope, this another group ultrasonic transducer connects with another higher-order of oscillation electric signal generator.

This tank is not drawn in legend.

Do not draw in legend this another group ultrasonic transducer.

This catalyst underflow reverse flow valve is the valve body for this catalyst return flow line of on-off control; The opening-closing valve of commercially available various fluid lines, can be applicable to the needs of this locations of structures, and its concrete type selecting can determine as required.

Described dry-reed type ball float level controller, the art-recognized meanings of itself is known for the professional of fluid level controller manufacturing; Described dry-reed type ball float level controller is commercially available.

Described rly. is commercially available.

Valve body on all fluid passages of this case, can choice for use magnetic valve, when choice for use magnetic valve, being arranged on a control panel, so, can realizing long-distance centralized control easily by being concentrated by long-range cable.

Described dry-reed type ball float level controller is not drawn in legend.

This HF oscillation electric signal producer and another HF oscillation electric signal producer described is not drawn in legend.

Involved pH probe is commercially available; Described pH probe is also known as pH sensor; PH probe or itself art-recognized meanings of day pH sensor are known.

Involved pH analyser is commercially available; Itself art-recognized meanings of pH analyser is known.PH can be utilized to detect, picking up, showing pH value information of any model made a general reference in this case pH analyser one word, and externally can export pH and to be correlated with the instrument of electric signal, market is sold simple and easy or complicated but all meet the pH correlate meter of this basic demand it is various in style, can select as required.

Involved its thickness of buffering isolating pad is not limit; But have a preferable range, the preferable range of this its thickness of buffering isolating pad is between 1 millimeter to 8 millimeters.

Involved viton and their art-recognized meanings of involved silicon rubber own are known; Involved viton and involved silicon rubber, market is all on sale.

Involved its wall thickness of micropore stainless steel sleeve is not limit; But also have the preferable range that associated, the preferable range of this its wall thickness of micropore stainless steel sleeve is between 3 millimeters to 30 millimeters.

An involved powder sintered word, the art-recognized meanings of itself, for the professional of metallurgical technology field, is known.

Involved micropore stainless steel sleeve, can to the customization of relevant powder metallurgy specialized factory.

Sleeve-shaped micropore Stainless Steel Filter conversion powder sintering process can made is the micropore stainless steel sleeve described in this case; The sleeve-shaped micropore Stainless Steel Filter that described powder sintering process is made is commercially available.

The aperture of involved its micropore of micropore stainless steel sleeve is not limit; But the aperture of this micropore is also have a preferable range, the preferable range of this micropore size is between 0.5 micron to 50 microns.

Its opening end upward of this micropore stainless steel sleeve connects with described container top via buffering isolating pad, refers to the connection that this connection is flexibility, in this connection part, has described buffer compartment mediate from padding.

Described warning horn can send the device that audio frequency warns message or optical frequency warning message by the electric signal received by it; Itself art-recognized meanings of described warning horn is known; Described warning horn is commercially available.

Described its gradient enforcement value hollow is between 5 degree and 35 degree, and any set point value within this gradient scope is all the operable enforcement value that this case allows; This its gradient enforcement value hollow can be such as 5 degree, 8 degree, 10 degree, 15 degree, 20 degree, 25 degree, 30 degree, 35 degree, etc.

Itself art-recognized meanings of involved ultrasonic transducer one word is known for the professional in ultrasonic technology field.

Itself art-recognized meanings of involved HF oscillation electric signal transmission cable one word is also known for the professional in ultrasonic technology field.

Involved ultrasonic transducer and HF oscillation electric signal transmission cable market all on sale; Described ultrasonic transducer and HF oscillation electric signal transmission cable etc. also can to ultrasonic transducer specialized factory and the customizations of cable specialized factory.

Itself art-recognized meanings of involved HF oscillation electric signal producer one word is also known for the professional in ultrasonic technology field; Various HF oscillation electric signal producer all has commercially available; Described HF oscillation electric signal producer also can customize to ultrasonic wave equipment specialized factory.

Involved ozone sensor 38 is commercially available; Also can customize to ozone sensor specialized factory as required.

Involved ozone content monitor market is on sale; Also can customize to ozone content indicating meter specialized factory as required; Ozone sensor producer also sells matching used ozone content indicating meter usually.

Involved ozone attention device, refers to warn the mechanism for warning had both at the same time both sound or alarm flashing or warning sound combines with alarm flashing; Ozone attention device is commercially available; Also can customize to ozone attention device specialized factory; Matching used ozone attention device also can be sold usually by ozone sensor producer.

This power-supply controller of electric 39 is power-supply controller of electric that the described electric signal that can receive according to it carries out power switch action; The electric signal that can receive according to it carries out the power-supply controller of electric of power switch action only with regard to its circuit engineering itself, is ripe, known technology; Described power-supply controller of electric is commercially available; Also commercially available power-supply controller of electric can be utilized to change a social system as required; Described power-supply controller of electric also can customize to power-supply controller of electric specialised manufacturers; Its specialised manufacturers of the electron device of power-supply controller of electric and so on spreads all over the world.

Described metal material one word, the art-recognized meanings of itself is known.

Metal cage 7 can be the metal cage be made up of any metal material; But in view of strong oxidizing property condition involved by wastewater degradation process, stainless steel is preferred material.

The preferred practical range of the caliber size of this its hole of metal cage 7 or mesh is between 0.5 centimetre and 3.0 centimetres, and any set point value within this scope is all preferably available enforcement value.

Preferred described metal cage 7 can be through mold pressing, welding, riveted joint or splice by the complementary accessory such as screw, nut the metal cage made by stainless steel punched-plate.

Preferred described metal cage 7 also can be weave by Stainless Steel Wire the metal cage made.

Distance between the inwall of metal cage 7 and silica tube 16 outer wall does not limit, and this distance can be arbitrary distance; But the preferred value of the distance between the inwall of this metal cage 7 and the outer wall of silica tube 16 is between 3.0 centimetres and 30.0 centimetres, any numerical value within this scope is all the preferred value allowing to implement.

The further preferred numerical range of the distance between the inwall of metal cage 7 and the outer wall of silica tube 16 is between 10.0 centimetres and 20.0 centimetres, and any numerical value within this scope is all the further preferred numerical value allowing to implement.

The material of described circulation conductor 3 is not limit, and the material of described circulation conductor 3 can be such as tetrafluoroethylene material, glass material, ceramic material, metal material, etc., but its preferred material of circulation conductor 3 is stainless steel.

In this this case example structure, described many micro porous aeration heads 19 are installed in its big opening end 20 edge of described circulation conductor 3 with gathering within reactor 4 inner chamber bottom surface vertical projects the scope drawn a circle to approve.Be positioned at described many micro porous aeration heads 19 that described vertical projects within the scope drawn a circle to approve, both can be tiling be installed within scope that reactor 4 intracavity bottom draws a circle to approve, certainly, within this delineation scope, also another kind of more intensive installing mode can be taked, described more intensive installing mode, refer to, described many micro porous aeration heads can be established in the enterprising windrow superimposed of three-dimensional, in this way they be gathered the cluster-shaped micro porous aeration head cluster being formed and there is three-dimensional stacked framework; This kind of cluster-shaped micro porous aeration head cluster can hold the comparatively huge micro porous aeration head of quantity; This kind of mode can carry larger air flux.

What show in this case legend is exactly the structural feature of above-mentioned this cluster-shaped micro porous aeration head cluster; The level of its actual stacked architecture can also allow to be that the level shown than legend is more certainly, and in the stacked architecture that this is multi-level, each micro porous aeration head can arrange with offseting one from another, can mutually not block, certainly, even if there is part mutually to block, also without prejudice.

The preferable range in preposition its filter opening aperture of prefilter 33 of described back flush type is between 5 microns and 300 microns, and certainly, other the preposition pre-filtering aperture outside this preferable range is selected also to be that this case allows; The preferable range in described its filter opening aperture of back flush type tubular fibre membrane microfiltration strainer 31 is between 25 nanometers and 1000 nanometers, and certainly, it is also that this case allows that other micro-filtration aperture outside this preferable range is selected; The preferable range in described its filter opening aperture of back flush type hollow-fibre membrane ultra filtration filter 29 is between 15 nanometers and 2 nanometers, and certainly, it is also that this case allows that other ultrafiltration aperture outside this scope is selected.

The preposition prefilter 33 of described back flush type also claims back flush type fore filter or back flush type prefilter, and itself art-recognized meanings of the preposition prefilter of described back flush type 33 is known; Described back flush type preposition prefilter 33 is commercially available.

Described back flush type tubular fibre membrane microfiltration strainer 31 is the strainers being suitable for micro-filtration; Itself art-recognized meanings of described micro-filtration one word is known; Itself art-recognized meanings of described back flush type tubular fibre membrane microfiltration strainer 31, for the professional of technical field of membrane separation, is known; Described back flush type tubular fibre membrane microfiltration strainer 31 is commercially available.

Described back flush type hollow-fibre membrane ultra filtration filter 29 is the strainers being suitable for ultrafiltration; Itself art-recognized meanings of described ultrafiltration one word is known; Itself art-recognized meanings of described back flush type hollow-fibre membrane ultra filtration filter 29, for the professional of technical field of membrane separation, is known; Described back flush type hollow-fibre membrane ultra filtration filter 29 is commercially available.

In ultrafiltration link, this back flush type hollow-fibre membrane ultra filtration filter 29 can be the form only having a back flush type hollow-fibre membrane ultra filtration filter monomer; Certainly, this back flush type hollow-fibre membrane ultra filtration filter also can be made up of in the connection parallel with one another of more than one back flush type hollow-fibre membrane ultra filtration filter monomer quantity.In legend, do not show this kind of structural form in parallel.

Express an involved word in parallel, the art-recognized meanings itself referred to is clearly.

Express involved monomer one word, refer to itself function and structure equipment individuality completely.

Similarly, in micro-filtration link, this back flush type tubular fibre membrane microfiltration strainer 31 can be the form only having a back flush type tubular fibre membrane microfiltration strainer monomer; Certainly, this back flush type tubular fibre membrane microfiltration strainer also can be made up of in the connection parallel with one another of more than one back flush type tubular fibre membrane microfiltration strainer monomer quantity.This kind of parallel-connection structure situation is not shown in legend.

The connecting pipeline of the water-in of described back flush type tubular fibre membrane microfiltration its pure water inlet of strainer 31 and described back flush type hollow-fibre membrane ultra filtration filter 29 can install second topping-up pump further, and this second topping-up pump is for augmenting hydraulic pressure to meet the intake pressure demand of described back flush type hollow-fibre membrane ultra filtration filter; This second topping-up pump not necessarily.Do not show in legend that this kind uses the architectural scenarios of second topping-up pump.

Can offer sewage draining exit 22 in the bottom of described reactor 4, this sewage draining exit 22 may be used for deslagging, removes contamination, and can install wash water valve 21 in this sewage draining exit 22 position, and described wash water valve 21 is the valves controlled for blowdown.Described sewage draining exit 22 and wash water valve 21 are not necessarily.

Can also on this case architecture basics, further develop this case scheme, such as, can be paid close attention to the charging characteristic of catalyst particles, and be apt to add utilization to it, consider based on this, its hollow fiber microfiltration membrane included of back flush type tubular fibre membrane microfiltration strainer described in this case can be specified and be used bear electricity hollow fiber microfiltration membrane, and its hollow fiber ultrafiltration membrane included of back flush type hollow-fibre membrane ultra filtration filter described in this case can be specified and be used bear electricity hollow fiber ultrafiltration membrane.When using bear electrolemma, coulombic repulsion effect can be given full play to, its effect of this coulombic repulsion, is the intractable attachment that can suppress catalyst particles on membrane module, facilitates the clean running of its backwashing procedures of membrane module.Only with regard to itself art-recognized meanings of bear electricity hollow-fibre membrane one word, for the researchist in charged membrane field, know.Only with regard to itself technology of preparing of bear electricity hollow-fibre membrane, for the expert in charged membrane field, know.

Implement in legend, not draw other annex described.

The embodiment of this case is not limited to legend mode.

Claims (9)

1. the Photocatalytic wastewater degradation device of membrane module is safeguarded by weak cavitation high frequency ultrasound, the structure of this device comprises reactor, this reactor is the container of a hollow, its appearance profile of this reactor is cube shaped, cuboid, cylindrical, the cylindroid bodily form, the polygon prism bodily form, spherical or the ellipsoid bodily form, many micro porous aeration heads are equiped with at the bottom position of this reactor inner chamber, and, silica tube, this silica tube is erected at the cavity position of described reactor, the two ends of this silica tube are equiped with shutoff headkerchief, two the described shutoff headkerchieves laying respectively at silica tube two ends all offer ventilation interface, and, electrodeless ultraviolet lamp, this electrodeless ultraviolet lamp is bar-shaped, ring-type, spherical, starfish shape or sea urchin shape, the quantity of this electrodeless ultraviolet lamp is at least more than one, this quantity is at least all erected at the inside of described silica tube at more than one electrodeless ultraviolet lamp, and, pneumatic pump, this pneumatic pump is installed in the outside of reactor, ventilation interface on its one end capping head of described silica tube connects via breather line and through the wall of reactor with the air outlet of described pneumatic pump, ventilation interface on its other end shutoff headkerchief of described silica tube connects with the micro porous aeration head being positioned at reactor intracavity bottom via another breather line, and, microwave generator, this microwave generator is installed in the outside of reactor, this microwave generator is magnetron, and, waveguide, this waveguide is the component for transmitting microwave, one end of this waveguide and described magnetron UNICOM, the other end of this waveguide is through the inner chamber of the wall orientating reaction device of reactor, and, water pump, this water pump is positioned at the outside of reactor, this water pump is used for the pending waste water of pumping, its water outlet of this water pump leads to the inner chamber of this reactor, exhaust port is offered above this reactor, that one end of the wall through reactor of this waveguide extends much further into the inner chamber of reactor, and, the microwave exposure spatial domain constrainer of the caged of metal material, containing many holes or mesh in the microwave exposure spatial domain constrainer of this caged, the function of the microwave exposure spatial domain constrainer of this caged is constraint microwave exposure spatial domain, the microwave exposure spatial domain constrainer of the caged of this metal material is a metal cage, this metal cage is installed in the cavity position of reactor, that one end of the wall through reactor of this waveguide and the inner chamber UNICOM of this metal cage, described UNICOM refers to connection in microwave channel meaning and through, described silica tube is the inside being erected at this metal cage, article two, described breather line all penetrates the wall of this metal cage, the locations of structures of the wall of this metal cage is the locations of structures between reactor wall and silica tube outer wall, it is characterized in that, the structure of this device also comprises circulation conductor, the function of this circulation conductor is the ascension path containing ozone-air bubble of pack from micro porous aeration head, and pull strength to the cyclic motion of leading inside reactor liquid to make relative big scale by the bubble flow of ascension because strengthening by pack, this circulation conductor is installed in the cavity position of described reactor, its profile shape of this circulation conductor simple and easy speaking trumpet that seemingly two ends are through, its osculum end of this circulation conductor vertically upward, this its big opening end of circulation conductor vertically downward, this its axis of circulation conductor is mutually vertical with the inner chamber bottom surface of described reactor, its locations of structures of osculum end vertically upward of this circulation conductor is immediately below described metal cage, transverse distance between its edge of big opening end vertically downward of this circulation conductor and reactor intracavity sidewall is between 5 centimetres and 300 centimetres, fore-and-aft distance between its edge of big opening end vertically downward of this circulation conductor and reactor inner chamber bottom surface is between 5 centimetres and 100 centimetres, and, described many micro porous aeration heads are installed in its big opening end edge of described circulation conductor with gathering within reactor inner chamber bottom surface vertical projects the scope drawn a circle to approve, and, topping-up pump, this topping-up pump is mixed with the water after the degraded of a large amount of catalyst particles for supercharging pumping, its water-in of this topping-up pump is via ventilating water pipe and connect with the inner chamber of reactor through the wall of reactor, and, the preposition prefilter of back flush type, its water-in of the preposition prefilter of this back flush type connects with the water outlet of described topping-up pump, and, back flush type tubular fibre membrane microfiltration strainer, its pure water inlet of the preposition prefilter of described back flush type connects via the water-in of first water purifying valve with this back flush type tubular fibre membrane microfiltration strainer, and, back flush type hollow-fibre membrane ultra filtration filter, described its pure water inlet of back flush type tubular fibre membrane microfiltration strainer connects via the water-in of second water purifying valve with this back flush type hollow-fibre membrane ultra filtration filter, this its pure water inlet of back flush type hollow-fibre membrane ultra filtration filter connects with the entrance end of the 3rd water purifying valve, the water side of the 3rd water purifying valve is the water side of outlet terminal water purification, and, catalyst underflow transition tank, this catalyst underflow transition tank is the tank body of a hollow, this catalyst underflow transition tank is used for temporarily depositing the higher water body of catalyst concentration that each its backwashing procedures of described strainer discharges, the catalyst underflow refluxing opening being positioned at this its intracavity bottom of catalyst underflow transition tank leads to the inner chamber of reactor via catalyst underflow reverse flow valve, this catalyst underflow reverse flow valve is the valve body for this catalyst return flow line of on-off control, its sewage outlet of the preposition prefilter of described back flush type leads to the inner chamber of this catalyst underflow transition tank via first sewage valve, described its sewage outlet of back flush type tubular fibre membrane microfiltration strainer leads to the inner chamber of this catalyst underflow transition tank via second sewage valve, described its sewage outlet of back flush type hollow-fibre membrane ultra filtration filter leads to the inner chamber of this catalyst underflow transition tank via the 3rd sewage valve, each described strainer is all for retaining catalyst particles, each its sewage outlet of described strainer is all converted as by the recycling delivery port retaining catalyst particles, and, ozone sensor, the sampling port of this its stopple coupon of ozone sensor is close to described exhaust port or probes into the inside of described exhaust port, and, ozone content indicating meter, the composite structure of ozone attention device or ozone content indicating meter and ozone attention device, this ozone sensor is via Article 1 cable and this ozone content indicating meter, ozone attention device or ozone content indicating meter connect with the composite structure of ozone attention device, and, power-supply controller of electric, its output electric signal of this ozone sensor connects with this power-supply controller of electric via Article 2 cable, this power-supply controller of electric connects with described magnetron via Article 3 cable, this power-supply controller of electric connects with described pneumatic pump via Article 4 cable, this power-supply controller of electric is the power-supply controller of electric that the described electric signal that can receive according to it carries out power switch action, and, one group of ultrasonic transducer, this group of ultrasonic transducer is at least containing a ultrasonic transducer individuality, this group of ultrasonic transducer is used for radiate low ultrasonic wave, this low-frequency ultrasonic waves refers to the ultrasonic wave of frequency in 20kHz-60kHz scope, this reactor inner chamber bottom surface is hollow gradually to central zone by periphery, described its gradient hollow is between 5 degree and 35 degree, this group of ultrasonic transducer is be installed in its part reactor diapire corresponding to hollow innermost of this reactor inner chamber bottom surface outer side position or medial surface position with attaching, and, HF oscillation electric signal transmission cable, one end of this HF oscillation electric signal transmission cable connects with this ultrasonic transducer, and, HF oscillation electric signal producer, the other end of described HF oscillation electric signal transmission cable connects with this HF oscillation electric signal producer, and, pH pops one's head in, and, pH analyser, this pH pops one's head in and pH analyser is coupled to each other, this pH analyser and connecting with warning horn, this warning horn is used for giving the alarm to the pH value situation of transfiniting, this pH probe stretches into reactor inner chamber through the top of reactor, and, through the micropore stainless steel sleeve that powder sintering process is made, this micropore stainless steel sleeve is cap for brush shape, this micropore stainless steel sleeve is positioned at reactor inner chamber, this its blind end of micropore stainless steel sleeve down, this its opening end of micropore stainless steel sleeve upward, its opening end upward of this micropore stainless steel sleeve connects with reactor head via buffering isolating pad, this pH its that part stretching into reactor inner chamber of popping one's head in probes within this micropore stainless steel sleeve, this its material of buffering isolating pad is viton or silicon rubber, and, two pairs of dry-reed type ball float level controllers, these two pairs of dry-reed type ball float level controllers all extend into the inner chamber of reactor through the top of reactor, a pair dry-reed type ball float level controller is wherein connected with the power cable of described water pump by a rly., wherein another is connected with the power cable of described topping-up pump by another rly. dry-reed type ball float level controller, and, tank, described back flush type tubular fibre membrane microfiltration strainer and the equal submergence of described back flush type hollow-fibre membrane ultra filtration filter are placed within this tank, another group ultrasonic transducer is equiped with bottom its sidewall of this tank or its, this another group ultrasonic transducer at least contains a ultrasonic transducer individuality, this another group ultrasonic transducer is used for radiate high frequency ultrasonic wave, this high-frequency ultrasonic refers to the ultrasonic wave of frequency in 100kHz-12MHz scope, this another group ultrasonic transducer connects with another HF oscillation electric signal producer, its filter opening aperture of the preposition prefilter of described back flush type is between 5 microns and 300 microns, described its filter opening aperture of back flush type tubular fibre membrane microfiltration strainer is between 25 nanometers and 1000 nanometers, described its filter opening footpath of back flush type hollow-fibre membrane ultra filtration filter is between 2 nanometers and 15 nanometers, involved its thickness of buffering isolating pad is between 1 millimeter and 8 millimeters, involved its wall thickness of micropore stainless steel sleeve is between 3 millimeters and 30 millimeters, the aperture of involved its micropore of micropore stainless steel sleeve is between 0.5 micron and 50 microns.

2. the Photocatalytic wastewater degradation device safeguarding membrane module by weak cavitation high frequency ultrasound according to claim 1, it is characterized in that, its material of this metal cage is stainless steel, and the hole spread all in this metal cage self structure or its bore scope of mesh are between 0.5 centimetre and 3.0 centimetres.

3. the Photocatalytic wastewater degradation device safeguarding membrane module by weak cavitation high frequency ultrasound according to claim 1, it is characterized in that, the distance between the inwall of this metal cage and the outer wall of silica tube is between 3.0 centimetres and 30.0 centimetres.

4. the Photocatalytic wastewater degradation device safeguarding membrane module by weak cavitation high frequency ultrasound according to claim 3, it is characterized in that, the distance between the inwall of this metal cage and the outer wall of silica tube is between 10.0 centimetres and 20.0 centimetres.

5. the Photocatalytic wastewater degradation device safeguarding membrane module by weak cavitation high frequency ultrasound according to claim 1, is characterized in that, this profile shape is stainless steel like its material of circulation conductor of the through simple and easy speaking trumpet in two ends.

6. the Photocatalytic wastewater degradation device safeguarding membrane module by weak cavitation high frequency ultrasound according to claim 1, it is characterized in that, described many micro porous aeration heads establish in the enterprising windrow superimposed of three-dimensional, gathers the cluster-shaped micro porous aeration head cluster being formed and have three-dimensional stacked framework in this way.

7. the Photocatalytic wastewater degradation device safeguarding membrane module by weak cavitation high frequency ultrasound according to claim 1, it is characterized in that, this back flush type hollow-fibre membrane ultra filtration filter is made up of in the connection parallel with one another of more than one back flush type hollow-fibre membrane ultra filtration filter monomer quantity.

8. the Photocatalytic wastewater degradation device safeguarding membrane module by weak cavitation high frequency ultrasound according to claim 1, it is characterized in that, this back flush type tubular fibre membrane microfiltration strainer is made up of in the connection parallel with one another of more than one back flush type tubular fibre membrane microfiltration strainer monomer quantity.

9. the Photocatalytic wastewater degradation device safeguarding membrane module by weak cavitation high frequency ultrasound according to claim 1, it is characterized in that, the connecting pipeline of the water-in of described back flush type tubular fibre membrane microfiltration its pure water inlet of strainer and described back flush type hollow-fibre membrane ultra filtration filter is equiped with second topping-up pump, and this second topping-up pump is for augmenting hydraulic pressure to meet the intake pressure demand of described back flush type hollow-fibre membrane ultra filtration filter.