CN1317201C - Running water and secondary water-supply deep-purifying method and apparatus - Google Patents
Running water and secondary water-supply deep-purifying method and apparatus Download PDFInfo
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- CN1317201C CN1317201C CNB2005100347323A CN200510034732A CN1317201C CN 1317201 C CN1317201 C CN 1317201C CN B2005100347323 A CNB2005100347323 A CN B2005100347323A CN 200510034732 A CN200510034732 A CN 200510034732A CN 1317201 C CN1317201 C CN 1317201C
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Abstract
The present invention relates to a depth purification method for tap water and secondary water supplies, which comprises the following procedures: tap water is magnetized and softened first, so that adsorption is finished when the water to be purified flows backwards and forwards in partition sections containing activated carbon fibers, which are arranged in a reactor case, and then, decomposition of adsorbed substances is finished so as to finish more advanced purification by ultraviolet lamps and mipor aeration heads which are arranged among the partition sections in a staggered mode when the water to be purified flows backwards and forwards. The present invention also comprises a purifying device which is characterized in that a water inlet pipe is sheathed with a magnetic loop; the partition sections which are composed of partition plates made of stainless steel and coarse filter screens made of stainless steel and are in movable connection by slots are arranged inside the inner cavity of the case; the mipor aeration heads are arranged on the side wall of the reactor case and among the partition sections; ultraviolet lamp tubes are arranged among the mipor aeration heads. The method and the device can realize a purification mode of adsorption and simultaneous decomposition, which has multistage purification effect with high purification efficiency and the final achievement of depth purification effect of direct drinking water and urban secondary water supplies with high flow rate.
Description
Technical field
The present invention relates to water treatment field, relate in particular to the deep-purifying method and the device of a kind of tap water advanced treatment and secondary water-supply.
Background technology
Along with the raising of people's living standard and the aggravation of water environment pollution, the health of tap water and safety receive increasing concern.According to the present situation of China's Economic development and drinking water pollution,, be target to remove underwater micro-organic matter to tap water or on processed conventionally basis.The advanced treatment that tap water is carried out and the deep purifying degree of secondary water-supply also are nowhere near like this, and this problem is more and more shown especially in the modern day life.Polluted as water source, somewhere, Shandong, symptom such as that part resident occurs is dizzy, alopecia, and cause local cancer morbidity obviously to rise.Drinking-water quality is carried out assay determination, find that in conventional index detects trichloromethane and tetracol phenixin exceed standard, and organism overall target COD in the tap water
Mn(chemical oxygen demand) is 3.6～6.8mg/l, surpasses the European Community (EEC) standard.Present domestic most of water factory all adopts chlorine to carry out disinfection as sterilizing agent, contains deleterious " disinfection byproduct (DBP) " in the tap water of use chlorine disinfectant.In sterilizing process, organism remaining in chlorine and the water produces chemical action, a series of compound such as trichloromethane (being chloroform), bromofom, bromodichloromethane, dichlorodibromomethane etc. have just produced, present drinking water plant both domestic and external generally on processed conventionally basis, further adopts the advanced treatment technology that adds ozone oxidation, charcoal absorption.And have only the water tank that uses common concrete tank or stainless steel usefulness as precipitation or water storage for the equipment that secondary water-supply carries out deep purifying, in addition traditional again oxychlorination agent or ultraviolet ray carry out general purification (as filter, softening, mineralising, sterilization) after pipe-line transportation is given the user; This method is to be difficult to remove in the tap water contain deleterious " disinfection byproduct (DBP) ".Appearance (2000) along with new " Drinking Water hygienic practice ", even the former water in many cities is by strengthening conventional processing, even set up the Biological Pretreatment facility, also can't reach the requirement of this standard, though and the advanced treatment process treatment effect of employing ozone oxidation, charcoal absorption is obvious, initial cost is relative with working cost higher.
The inventor is devoted to tap water purification and the research of secondary water treatment device always and improves, and applied for that on April 9th, 2004 name is called the patent of invention (application number: 200410026801.1 of " a kind of tap water is cleaned into the direct-drinking water method and apparatus ", publication number: CN 1569670A), this invention specific aim is stronger, the low discharge tap water had higher decontamination effect improving, but adopt this method and apparatus to have the clarification time weak point, to big flow control defect of insufficient, therefore, when in the face of a large amount of water supply in city or secondary water-supply, this invention also is not enough to accomplish fully the deep purifying of tap water and secondary water-supply.
Summary of the invention
The purpose of this invention is to provide a kind of activated carbon fiber and the magnetized tap water of photochemical catalysis and secondary water-supply deep-purifying method and device that adopts the agent of load photocatalyst.Utilization set compartment on reaction bed makes water to be clean do to flow back and forth within it, the activated carbon fiber of proof load photocatalyst agent adsorbs fully, decomposes the small molecular weight pollutent of trace, to reach the purpose that realizes deep purifying and stage purification, the deep purifying problem of tap water and secondary water-supply in the solution prior art.
For achieving the above object, the present invention proposes the deep-purifying method of a kind of tap water and secondary water-supply, may further comprise the steps:
A, tap water is magnetized softening the processing;
B, employing reaction bed are to carrying out the photocatalyst purifying treatment through magnetized tap water Micropollutants;
C, use UV-light and photocatalyst is finished more senior purification;
It is characterized in that the photocatalyst purifying treatment method among the described step b is: the photocatalyst agent is loaded on the activated carbon fiber, the filter screen and the dividing plate subassembly that contain this activated carbon fiber are set on reaction bed then form compartment, make water to be clean in its compartment, do to flow back and forth, finish adsorption cleaning and handle;
UV-light among the described step c and photocatalyst treatment method are: be staggered between above-mentioned compartment ultraviolet lamp and micro porous aeration head make water to be clean finish the decomposition of purification for the second time and adsorbate in making back and forth process of flowing;
Activated carbon fiber is adopted in described photocatalyst agent, its filament diameter 10-20 μ m, extension at break 3-5%, intensity＞5kg/m, tap density 0.04-0.06g/cm3, ash 0.5-1.0%, total specific pore volume 0.8-1.2ml/g, account for 83.9% below the pore size distribution 20A, 20-40A accounts for 6.1%, 40-100 accounts for 6.2%, accounts for 3.8% more than the 100A, specific surface area is 1300-1800m
2/ g, liquid phase 850-1800mg/g.
The present invention realizes that the scheme of above-mentioned purpose comprises that also the device of the deep purifying of a kind of tap water and secondary water-supply comprises the reactor casing, described reactor wall box is equipped with water inlet pipe and rising pipe outward respectively, described water inlet pipe outer wall is arranged with magnet ring, it is characterized in that: the reactor cabinets cavity is provided with at least one stainless steel separator, the compartment that formation can be communicated with, each stainless steel two sides is provided with the netted body of gross porosity stainless steel, the netted body of this gross porosity stainless steel is a sandwich structure, fills up the activated carbon fiber of load photocatalyst agent in the middle of the interlayer; Between described stainless steel separator and the wall box and between the two stainless Steel Diaphragms at least one group of micro porous aeration head is housed, at least one group of quartz burner is housed between each micro porous aeration head;
Plated with photocatalysis agent film on the described gross porosity stainless (steel) wire.
Mode of connection can adopt insertion slot type to connect for flexibly connecting between described stainless steel separator and gross porosity stainless (steel) wire and the casing.
The present invention is at first magnetized softening the processing to the tap water that stores, and both can make water quality obtain rough purification, provides sufficient condition and guarantee for follow-up darker first class purification simultaneously; By the compartment of forming by filter screen and dividing plate subassembly in the reaction bed setting, the water of crossing through the high-intensity magnetic field pretreatment activating is done when back and forth flowing back and forth therein, finish adsorption treatment, made full use of the space of reactor casing itself, prolong the adsorption time of water to be clean in reactor, improved water degree of purification and purification rate.Simultaneously, ultraviolet lamp and micro porous aeration head are staggered between each compartment, when the adsorptive capacity of the absorption reaction bed that contains activated carbon fiber is acquired a certain degree, adsorbate is because the photocatalyst agent of load directly photodissociation and photochemical catalysis by exciting of UV-light on the activated carbon fiber, make the pollutent chemical recycling of carbon dioxide and the water of its enrichment, increased the light-catalysed reaction times, strengthened the light-catalyzed reaction effect, thereby realized the function of decomposing while adsorbing, both can finish more high-grade purify, further improved purification rate, solved the regeneration problem of activated carbon fiber again, can be continuous, recycle, improved usage ratio of equipment, reduced production cost.In addition, present device plated with photocatalysis agent on filter screen and surface that water to be clean contacts can improve the photochemical catalysis effect, and reaction bed and dividing plate all adopt the Stainless Steel manufacturing, can improve erosion resistance and work-ing life; The high voltage bearing protective quartz pipe of quartz burner pipe overcoat can be used for isolated water and protects quartz burner in this sleeve pipe, further improves practicality of the present invention and reliability; Mode of connection adopts and flexibly connects between stainless steel separator and gross porosity stainless (steel) wire and the casing, can be convenient to the cleaning and the replacing of stainless steel separator and gross porosity stainless (steel) wire, and is very convenient.
The present invention has realized the stage purification of tap water and secondary water-supply in the less reactor of volume, purification efficiency is higher, may ultimately reach the effect of direct-drinking water and city big flow secondary water-supply deep purifying, have comparatively wide application prospect, the promotional value height.
Description of drawings
Fig. 1 looks synoptic diagram for apparatus of the present invention structure master;
Fig. 2 looks synoptic diagram for apparatus of the present invention structure left side;
Fig. 3 is apparatus of the present invention structure schematic top plan view;
Fig. 4 is the I-I partial enlarged drawing of Fig. 3.
Embodiment
At present, the especially compound polluted close attention that is subjected to countries in the world of halogenated organic of the organic contamination of tap water.Organization for International Economic Cooperation (OECO) and The World Health Organization (WHO) once organized the expert to inquire into and study for existence form, toxicity, generting machanism and the control method of the organohalogen compound in the water, domestic also have to a certain degree progress to the research of removing the halohydrocarbon trichloromethane in giving water treatment, and to 1,1, the removal of 2-trichloroethane is also stranger.
The applicant once got three groups of samples from the conventional water supply network in Shandong city, water quality is carried out check and analysis, and six index exceeding standard standards are arranged, and emphasis is reflected in the problem of organic contamination.Detect data and see Table 1.
Table 1 water quality detection result
| Sequence number | | Unit | 1# | 2# | 3# | 88 indexs | The direct | |
| 1 | 1,1,2 trichloroethane | μg/l | 43.9* | 36.7* | 37.4* | Total amount＜=1 | ||
| 2 | Total organic carbon (TOC) | μg/l | 13.9* | 12.6* | 13.6* | ＜＝4 | ||
| 3 | Trichloromethane | μg/l | 54.8* | 55.2* | 58.3* | ＜＝60 | ＜＝30 | |
| 4 | Specific conductivity | μg/l | 625* | 500* | 503* | ＜＝400 | ||
| 5 | Tetracol phenixin | μg/l | 35.8* | 18.6* | 33.5* | ＜＝5 | ＜＝2 |
* represent this index exceeding standard standard
Continuation is carried out online detection of look-matter and Salmonella reversion test from the sampling of this city pipe network water, and organism in the water is carried out qualitative analysis, and the result detects 48 kinds of organism from pipe network, wherein has 9 kinds of the organism that biomagnification, three causes effect.Salmonella reversion test has certain mutagenicity.
According to the detected result analysis-by-synthesis, this city's pipe network water has been subjected to organic contamination, especially has organochlorine compounds such as trichloromethane, trichloroethane in the water and exceeds standard seriously.Trichloroethane, trichloromethane belong to the low compound of organic halogen together, its " precursor " is as decomposition or the meta-bolites of some phenol compound, humic acid even some algae, all can generate halogenated hydrocarbon compound after oxidation, halogenation, hydrolysis, its chemical stability is strong, difficult degradation.Research is thought, even the chlorine of low dosage also can produce chlorination, causes chlorine to enter in the organic compound.Chlorine enters in the organic compound increases its lipotropy, is insoluble in water and is soluble in fat, and accumulation property is strong in human body and biology, and potential hazard is very big, has very strong three and causes effect, is the carcinogens that WHO confirms.Therefore, determine that this city's pipe network water belongs to organic micro-pollution water.
In view of the existing defective in above-mentioned water supply field, the present invention proposes the deep-purifying method of a kind of tap water and secondary water-supply, may further comprise the steps:
1) earlier tap water is magnetized softening the processing.It is by pending water being imposed 4000 to 20000 Gausses' strong magnetic field, make the magnetic line of force and the current perpendicular quadrature that are produced, water can pass through magnetic field with certain flow velocity under external force, make cutting magnetic line movement, can produce electric charge and the electromotive force that makes charge movement in the tap water, so water has just produced electric current, physical changes such as potential difference, produce electric energy, at this moment in the water electric charge has been arranged, current potential, the state and the character that will change water itself and be included in other material in the water, can finish pretreatment activating water process, perform sufficient preparation for next stage purifies;
2) adopt load the activated carbon fiber absorption reaction bed of photocatalyst agent to be arranged to adsorbing and the photocatalyst purifying treatment through magnetized tap water Micropollutants.Because identical reaction casing is directly to enter from water inlet pipe in scavenging process in the prior art, rising pipe flows out, and the reaction times is shorter, adsorbs insufficiently, therefore, is difficult to guarantee decontamination effect improving preferably.The present invention is provided with the filter screen and the dividing plate subassembly that contain activated carbon fiber and forms compartment on reaction bed, activated carbon fiber loaded have a photocatalyst agent, can make in its compartment of water and circulate back and forth, in unidimensional casing, can prolong the residence time of water to be clean in reactor, increased the distance of current, to guarantee the abundant adsorption cleaning of its impurity and pollutent, improved purification rate;
When compartment that the water of crossing through the high-intensity magnetic field pretreatment activating is formed by filter screen and dividing plate subassembly, because the activated carbon fiber of load photocatalyst agent is viscose base activated carbon fiber (Activated Carbon Fibers, ACF) felt is acidproof, alkaline-resisting, and have conductivity and chemical stability preferably, its adsorption rate is compared high tens of times to hundreds of times of granular carbon GAC, its adsorptive capacity is than big several times to tens times of granular carbon (GAC), to the inorganics in the aqueous solution, dyestuff, the adsorptive capacity of organism and precious metal than the high 5-6 of GAC doubly, therefore, the adsorptive power to the lower concentration adsorbate is good especially.
3) finish more senior purification by the photocatalyst film of load on the activated carbon fiber on the absorption reaction bed, the gross porosity stainless (steel) wire top layer by UV-light and photocatalyst at last.Ultraviolet lamp and micro porous aeration head owing to be staggered between each compartment, aeration aerating and photochemistry advanced oxidation are handled, and water quality is fully ensured.When the adsorptive capacity of activated carbon fiber absorption reaction bed acquires a certain degree, adsorbate is because the photocatalyst agent of load directly photodissociation and photochemical catalysis by exciting of UV-light on the activated carbon fiber, make the pollutent chemical recycling of carbon dioxide and the water of its enrichment, thereby real function of decomposing while adsorb, solved simultaneously activated carbon fiber saturated after need regenerated problem;
When activated carbon fiber absorption is filtered reaction bed to adsorbing and the photocatalyst purifying treatment through magnetized tap water Micropollutants, realize the first step limit absorption catalytic while of marginal ray, because activated carbon fiber on the absorption reaction bed, the photocatalyst film of load is under the uviolizing of 185nm-254nm at the light wave that is subjected to quartz burner on the gross porosity stainless (steel) wire top layer, electron absorption luminous energy on its catalyzer forbidden band and be excited on the conduction band and produce the high reactivity electronics that has very strong negative electricity, on the forbidden band, produce the hole (h+) of positively charged simultaneously, the hole is right one by one thereby generation has very strong active electronics, semiconductor light-catalyst (TiO
2) oxidizing potential of photohole counts 3.0V with the standard hydrogen current potential, and is more high than the 1.36V of the 2.07V of ozone and chlorine, has very strong oxidisability, highly active photohole has very strong oxidation capacity, can will be adsorbed on the OH of semiconductor surface
-And H
2O carries out oxidation, generates to have strong oxidizing property OH free radical.Be that these electronics are had an effect with dissolved oxygen and water after moving to the photocatalyst film surface in the hole one by one, final hydroxyl radical free radical (OH) and the super-oxide ion with highly chemical oxidation activity that produce is from the oxidizing potential size order (F of several strong oxidizers commonly used
2＞OH＞O
3＞H
2O
2＞HO
2＞MnO
4 -＞HClO＞Cl
2＞Cr
2O
7 2-＞ClO
2) as can be seen the OH free radical have very high oxidizing potential, be a kind of strong oxide group, can the most organic pollutant of oxidation and the part inorganic pollutant, various bacteriums, virus killed and be carbonic acid gas and water the organism complete oxidation.Simultaneously, the electronics in the organic pollutant that is adsorbed on semiconductor surface also can be captured in hole itself, making originally not, the material of extinction is decomposed by direct oxidation, and the oxygenizement to oxide compound has broad spectrum, the electron affinity power of OH free radical can reach 569.3kj, attack the organic molecule position of high cloud density easily, further the intermediate product of oxidation forms redox system.In the light-catalyzed reaction system, these two kinds of mode of oxidizing synergies are finished more high-grade photochemical catalytic oxidation decontamination process simultaneously.On the other hand, electron acceptor(EA) can directly be accepted the high reactivity electronics of photoproduction semiconductor surface generation and be reduced, and some specific pollutants-toxic metal in the water body is as Hg
2+, Ag
1+, Cr
6+, Cu
2+Be reduced into nontoxic metallic molecule Deng also accepting the high reactivity electronics of photoproduction semiconductor surface generation.Tap water is carried out multistage clean by the present invention, realization is to organism such as the hydrocarbon of disinfection byproduct (DBP) in the tap water, halogenated organic matters (comprising halogenated aliphatic hydrocarbon, halogenated carboxylic acid, halogenated aromatic), carboxylic acid, tensio-active agent, itrogenous organic substance, organophosphoruss, and inorganics such as toxic metal ion etc. reaches complete inorganicization, realizes removing as pollutents such as residue agricultural chemicals, chloroform, polychlorobiphenyl, organo phosphorous compounds, polycyclic aromatic hydrocarbons.Like this, pending tap water has been removed various dissimilar organic pollutants and bacterium, virus, has finished stage purification, can supply with the resident and use.
The present invention has designed the concrete Application Example of a refining plant according to above-mentioned purifying method.
Further describe with regard to the present invention below in conjunction with the specific embodiment accompanying drawing.
Specific embodiment according to Fig. 1 and Fig. 2 and Fig. 3, Fig. 4, can see and the inventive system comprises reactor casing 1, the base plate of this reactor casing 1 adopts slab design, the sidewall wallboard adopts the design of punching press floor, water inlet pipe 3 and rising pipe 4 are housed respectively on it, the water inlet is provided with flow-stopping plate 12, and the backflow of anti-sealing is arranged with employing SRO at water inlet pipe 3 outer walls
6Fe
2O
3The magnet ring of making 7 can produce 4000 to 20000 Gausses' strong magnetic field.For guaranteeing the light-catalysed reaction times, reactor casing 1 inner chamber is provided with the stainless steel separator 2 that at least one bootable current are made reciprocating type split flow, make reactor casing 1 inner chamber be separated into a plurality of compartments, form a reaction bed, current circulate in its compartment.Described reactor casing 1 wallboard, base plate and dividing plate 2 all adopt the 3042B stainless steel materials, avoid producing corrosion; Stainless steel separator 2 is fixing by the slot 14 that is arranged on reactor casing 1 bottom and sidewall, its both sides are respectively equipped with gross porosity stainless (steel) wire 11, be coated with on the wire side with respect to current and be brushed with the nanometer light catalyst plated film, for making things convenient for the renewal of photocatalyst plated film, adopt insertion slot type with easy disassembly during 11 designs of gross porosity stainless (steel) wire, also fixing by the slot 14 of reactor casing 1 bottom and sidewall.For strengthening the light-catalyzed reaction effect, at reactor and casing 1 sidewall and between cutting off at least one group of micro porous aeration head 6 is housed, source of the gas is filtered uncontaminated air; Between each micro porous aeration head 6 at least one group of quartz burner 5 is housed, quartz burner 5 is fixing by the tube face 9 that is connected with protective quartz pipe 8, protective quartz pipe 8 adopts transmittances greater than 85% high pressure quartz socket tube, and high voltage bearing protective quartz pipe 8 can be used for isolated water and protects quartz burner 5 in this sleeve pipe; Quartz burner 5 wiring come together in crane span structure and connect with electrical apparatus control system, the independent external design of electrical equipment control and supervisory system; Also have protective guard 13 on reactor casing 1, this protective guard 13 adopts 3042B stainless steel materials to make, be designed to can with reactor body easy disassembly formula.
In the present embodiment, produce magnetic field by water inlet pipe 3 outer sheathed magnet rings 7, tap water is magnetized softening the processing, this one pole magnet ring 7 adopts SRO
6Fe
2O
3Make, photocatalyst does not have shadow glue by UV-light and titania powder is formed, and wherein the weight percent of each component is as follows:
UV-light does not have shadow glue 60-99.5%;
Titania powder 0.5-40%;
The particle diameter of wherein used titania powder is 3-30nm, and effective ingredient adopts hydrophilic or the hydrophobic surface processing greater than 98%.
The activated carbon fiber of the load photocatalyst agent that present embodiment is used is the viscose base activated carbon fiber felt, filament diameter 10-20 μ m, extension at break 3-5%, intensity＞5kg/m, tap density 0.04-0.06g/cm3, ash 0.5-1.0%, total specific pore volume 0.8-1.2ml/g, account for 83.9% below the pore size distribution 20A, 20-40A accounts for 6.1%, 40-100 accounts for 6.2%, accounts for 3.8% more than the 100A, specific surface area is 1300-1800m
2/ g, inhaling the iodine amount is liquid phase 850-1800mg/g.
In the present invention, adopt photo catalysis reactor to carry out physics and photochemistry purifying treatment through magnetized tap water, at first the tap water that stores is magnetized processing, the high-intensity magnetic field that produces by magnet ring interrupts the molecular chain of water, make group's water molecules become single water molecules, thereby reduce the surface tension of water, demineralized water, improve the solvability of water, activate the static oxygen in the water, improve the oxygen level of water, handle for the photochemistry advanced oxidation of back and to have brought convenience, water ion after owing to magnetize can produce spin, makes water body keep fresh, and the solvency power of water, seepage force, adsorptive power is all stronger, and the trace mineral of reservation needed by human body, help replenishing the energy of human body consumption every day, through this magnetization, aeration aerating and photochemistry advanced oxidation are handled, and water quality is fully ensured.Then, the activated carbon fibre filtering reaction bed that adopts the agent of load photocatalyst is to adsorbing and the photocatalyst purifying treatment through magnetized tap water Micropollutants, thereby realized the catalytic purpose of limit absorption marginal ray, solved the regeneration problem of activated carbon fiber after absorption is saturated simultaneously, on its last gross porosity stainless (steel) wire top layer, finished more senior purification by using UV-light and photocatalyst.Like this, can reach the effect of stage purification, purification efficiency is higher, compact construction, with low cost, handle by the magnetization of adopting the outer sheathed magnet ring of water inlet pipe, and photochemical reaction takes place in aeration aerating and photocatalyst film and UV-light simultaneously in the photo catalysis reactor, realized this efficient height, the stage purification that cost is low effectively, the strong energy of oxidation of photochemical catalysis is realized killing rapidly for bacterium, virus and algae bio in the water; Can realize for organism such as the hydrocarbon in the water, halogenated organic matters (comprising halogenated aliphatic hydrocarbon, halogenated carboxylic acid, halogenated aromatic), carboxylic acid, tensio-active agent, itrogenous organic substance, organophosphoruss, and inorganics such as cryanide ion, metal ion etc. reaches complete inorganicization, realize removing as remaining pollutents such as agricultural chemicals, chloroform, polychlorobiphenyl, organo phosphorous compounds, polycyclic aromatic hydrocarbons, like this, finally reach the effect of city secondary water-supply deep purifying; Photo catalysis reactor and dividing plate all adopt the Stainless Steel manufacturing, can improve erosion resistance and work-ing life; The high voltage bearing protective quartz pipe of ultraviolet lamp tube overcoat can be used for isolated water and protects ultraviolet lamp in this sleeve pipe, further improves practicality of the present invention and reliability.
Working process of the present invention is as follows:
As Fig. 1, Fig. 2, shown in Figure 3, when tap water stream is with the water inlet pipe 3 of magnet ring 7 through the outside, produce strong magnetic field in the water inlet pipe 3, magnetic line of force and current perpendicular quadrature, water passes through magnetic field with certain flow velocity under external force, makes cutting magnetic line movement, can produce electric charge and the electromotive force that makes charge movement in the tap water, make water just produce physical changes such as electric current, potential difference, form activated water.
When the water of crossing through the high-intensity magnetic field pretreatment activating entered the compartment of filter screen and dividing plate subassembly composition, impurity and pollutent were subjected to the activated carbon fiber absorption in the filter screen interlayer in the water in flow process, finish the first step and purify; Because the ultraviolet excitation photodissociation and micro porous aeration head 6 photochemical catalysis of plated with photocatalysis agent film quartz burner 5 in being subjected to compartment have very strong oxidisability on the filter screen, can be with the OH that is adsorbed on the activated carbon fiber
-And H
2O carries out oxidation, can the most organic pollutant of oxidation and the part inorganic pollutant, and various bacteriums, virus killed and be carbonic acid gas and water the organism complete oxidation.Simultaneously, further intermediate oxidation product forms redox system.In the light-catalyzed reaction system, these two kinds of mode of oxidizing synergies are finished more high-grade photochemical catalytic oxidation decontamination process simultaneously.Like this, by tap water is carried out stage purification, realized organism such as hydrocarbon, halogenated organic matters (comprising halogenated aliphatic hydrocarbon, halogenated carboxylic acid, halogenated aromatic), carboxylic acid, tensio-active agent, itrogenous organic substance, organophosphorus to disinfection byproduct (DBP) in the tap water, and complete inorganicization such as inorganics such as toxic metal ion, remove as pollutents such as residue agricultural chemicals, chloroform, polychlorobiphenyl, organo phosphorous compounds, polycyclic aromatic hydrocarbons.
The present invention adopts the photo catalysis reactor light catalytic purifying to handle, and comprises tap water is magnetized and the activated carbon fiber absorption reaction bed that adopts the agent of load photocatalyst purifies to reach on the gross porosity stainless (steel) wire by using UV-light and photocatalyst and finishes the technology of more senior purification and test carry out the catalytic first step of limit absorption marginal ray through magnetized tap water Micropollutants.This test is carried out in the Shandong city, and former water is pipe network water.
The parameter of the operation of testing installation: (1) flooding quantity is maximum 180L/h, and minimum 60L/h, aquifer yield are maximum 180L/h, minimum 60L/h, and activated carbon fiber (ACF) the felt weight of (2) load photocatalyst agent is 1600 grams, specific surface area is 1800 ± 100m
2/ g, (3) absorption reaction bed filtering velocity: 24--32m.h.(4) reaction times 1--5min.(5) UV
186Ultraviolet lamp power is 40w * 4=160W.During test, in order to verify the treatment effect in variant reaction times, the water outlet of reaction times 1--5min and the variation of relevant parameter are as follows.
The water outlet removal effect table of table 2 reaction times 1min
| Sequence number | Project name | Unit | Former water | Water outlet | Remove | 88 indexs | The direct |
| 1 | Colourity | Degree | 10 | 4 | 60％ | ＜＝15 | ＜＝5 |
| 2 | Turbidity | NTU | 4.5 | 1.0 | 77.8％ | ＜＝3 | ＜＝1 |
| 3 | 1,1,2 trichloroethane | μg/l | 43.9 | 6.2 | 85.8％ | Total amount＜=1 | |
| 4 | Oxygen-consumption | Mg/l | 1.7 | 1.7 | ＜＝5 | ＜＝2 | |
| 5 | Total organic carbon (TOC) | Mg/l | 4.3 | 2.12 | 50.6％ | ＜＝4 | |
| 6 | Trichloromethane | μg/l | 54.8 | 9.3 | 83％ | ＜＝60 | ＜＝30 |
| 7 | Tetracol phenixin | μg/l | 35.8 | 4.8 | 86.5％ | ＜＝5 | ＜＝2 |
The water outlet removal effect table of table 3 reaction times 3min
| Sequence number | Project name | Unit | Former water | Water outlet | Clearance | 88 indexs | The direct |
| 1 | Colourity | Degree | 10 | 2.0 | 80％ | ＜＝15 | ＜＝5 |
| 2 | Turbidity | NTU | 4.5 | 0.6 | 86.6％ | ＜＝3 | ＜＝1 |
| 3 | 1,1,2 trichloroethane | μg/l | 43.9 | 1.2 | 97.2％ | Total amount＜=1 | |
| 4 | Oxygen-consumption | Mg/l | 1.7 | 1.0 | 41.17％ | ＜＝5 | ＜＝2 |
| 5 | Total organic carbon (TOC) | Mg/l | 4.3 | 1.2 | 72％ | ＜＝4 | |
| 6 | Trichloromethane | μg/l | 54.8 | 2.3 | 95.8％ | ＜＝60 | ＜＝30 |
| 7 | Tetracol phenixin | μg/l | 35.8 | 1.2 | 96.64％ | ＜＝5 | ＜＝2 |
The water outlet removal effect table of table 4 reaction times 5min
| Sequence number | Project name | Unit | Former water | Water outlet | Clearance | 88 indexs | The direct |
| 1 | Colourity | Degree | 10 | 1 | 90％ | ＜＝15 | ＜＝5 |
| 2 | Turbidity | NTU | 4.5 | 0.2 | 95.55％ | ＜＝3 | ＜＝1 |
| 3 | 1,1,2 trichloroethane | μg/l | 43.9 | 0.8 | 98.17％ | Total amount＜=1 | |
| 4 | Oxygen-consumption | Mg/l | 1.7 | 1.1 | 35.29％ | ＜＝5 | ＜＝2 |
| 5 | Total organic carbon (TOC) | Mg/l | 4.3 | 0.89 | 79.3％ | ＜＝4 | |
| 6 | Trichloromethane | μg/l | 54.8 | 1.08 | 98.03％ | ＜＝60 | ＜＝30 |
| 7 | Tetracol phenixin | μg/l | 35.8 | ＜ 0.5 | 98.6％ | ＜＝5 | ＜＝2 |
By above-mentioned testing data, no matter proof the present invention has higher removal to colorimetry-turbidity, and the pollution compound that contains disinfection byproduct (DBP) such as halo hydrocarbon compound (chemical stability strong, difficult degradation) and petrochemical complex had higher removal, so the present invention can be applicable to the deep purifying of waterworks and the deep purifying of city secondary water-supply is disinfected.
The present invention can be as required, per hour makes home-use deep purification for tap water device of treatment capacity 1-5000 cubical or large-scale waterworks with deep purification for tap water device and city secondary water-supply sterilizing and purifying device.
Claims (6)
1, the deep-purifying method of a kind of tap water and secondary water-supply may further comprise the steps:
A, tap water is magnetized softening the processing;
B, employing reaction bed are to adsorbing and the photocatalyst purifying treatment through magnetized tap water Micropollutants;
C, use UV-light and photocatalyst is finished more senior purification;
It is characterized in that absorption and photocatalyst purifying treatment method among the described step b are: the photocatalyst agent is loaded on the activated carbon fiber, the filter screen and the dividing plate subassembly that contain this activated carbon fiber are set on reaction bed then form compartment, make water to be clean in its compartment, do to flow back and forth, finish adsorption cleaning and handle;
UV-light among the described step c and photocatalyst treatment method are: be staggered between above-mentioned compartment ultraviolet lamp and micro porous aeration head make water to be clean finish the decomposition of purification for the second time and adsorbate in making back and forth process of flowing.
2, the deep-purifying method of tap water according to claim 1 and secondary water-supply, it is characterized in that described activated carbon fiber filament diameter 10-20 μ m, extension at break 3-5%, intensity＞5kg/m, tap density 0.04-0.06g/cm3, ash 0.5-1.0%, total specific pore volume 0.8-1.2ml/g, account for 83.9% below the pore size distribution 20A, 20-40A accounts for 6.1%, 40-100 accounts for 6.2%, accounts for 3.8% more than the 100A, specific surface area is 1300-1800m
2/ g, liquid phase 850-1800mg/g.
3, a kind of tap water and secondary water-supply deep purifying device, comprise the reactor casing, described reactor wall box is equipped with water inlet pipe and rising pipe outward respectively, described water inlet pipe outer wall is arranged with magnet ring, it is characterized in that: the reactor cabinets cavity is provided with at least one stainless steel separator, the compartment that formation can be communicated with, and each stainless steel two sides is provided with the netted body of gross porosity stainless steel, the netted body of this gross porosity stainless steel is a sandwich structure, fills up the activated carbon fiber of load photocatalyst agent in the middle of the interlayer; Between described stainless steel separator and the wall box and between the two stainless Steel Diaphragms at least one group of micro porous aeration head is housed, at least one group of quartz burner is housed between each micro porous aeration head.
4, the deep purifying device of a kind of tap water according to claim 3 and secondary water-supply is characterized in that: plated with photocatalysis agent film on the described gross porosity stainless (steel) wire.
5, the deep purifying device of a kind of tap water according to claim 3 and secondary water-supply is characterized in that: mode of connection is for flexibly connecting between described stainless steel separator and gross porosity stainless (steel) wire and the casing.
6, the deep purifying device of a kind of tap water according to claim 5 and secondary water-supply is characterized in that: be connected to insertion slot type between described stainless steel separator and gross porosity stainless (steel) wire and the casing and be connected.
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| CN100447095C (en) * | 2006-04-21 | 2008-12-31 | 陈克敏 | A combined labyrinth gas liquid sterilization and disinfection apparatus |
| CN101643250B (en) * | 2009-09-07 | 2011-05-18 | 浙江理工大学 | Absorption and photocatalysis integrated system for deep-treating organic waste water |
| CN102020333A (en) * | 2010-11-26 | 2011-04-20 | 中国科学院化学研究所 | Multistage continuous photocatalysis water purification reactor and water treatment method thereof |
| CN102442749A (en) * | 2011-10-28 | 2012-05-09 | 上海理工大学 | Baffled device for treating photobiological sewage |
| CN105753096B (en) * | 2016-04-21 | 2019-03-19 | 武汉千水环境工程技术有限公司 | A kind of photocatalytic advanced oxidation device |
| CN109796095B (en) * | 2019-01-24 | 2024-03-29 | 福建热心环保科技有限公司 | Sled dress formula black and odorous water body filtration liquid integrated reaction equipment based on photocatalyst |
| CN112759062A (en) * | 2021-01-27 | 2021-05-07 | 同济大学 | Method for improving disinfection treatment effect of clean water tank of water works |
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Effective date of registration: 20090410 Address after: A, block 135, No. 427 political channel, Zibo hi tech Development Zone, Shandong, China Patentee after: Cao Cheng Address before: Guangdong city of Shenzhen province Luohu District Nigang road deer Lingyuan B block 701 Patentee before: Shenzhen Bibao Environmental Protection Science and Technology Co., Ltd. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070523 Termination date: 20100523 |