CN101456604A - Method for quick processing wastewater by using microwave energy - Google Patents
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- CN101456604A CN101456604A CNA2008102206323A CN200810220632A CN101456604A CN 101456604 A CN101456604 A CN 101456604A CN A2008102206323 A CNA2008102206323 A CN A2008102206323A CN 200810220632 A CN200810220632 A CN 200810220632A CN 101456604 A CN101456604 A CN 101456604A
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Abstract
The invention discloses a method for rapid sewage treatment by using microwaves. The invention adopts a technical proposal of organically combining a flocculent settling method and a microwave treatment method, namely, pretreating sewage by using a physicochemical treatment technology to reduce the burden of microwave treatment, improve the efficiency of microwave treatment and solve the problem of high cost due to large physicochemical agent consumption during single physicochemical treatment at the same time. The method for rapid sewage treatment by using microwaves has the advantages of small sewage treatment equipment, large treatment capacity, small land occupation and effluent and mud meeting standards for direct reuse, and consequently is applicable to sewage treatment of various scales and capable of avoiding huge pipe network construction for concentrated sewage treatment. The quality of water treated by the technology reaches A standard of GB18918-2002 Pollutants Emission Standards of Urban Wastewater Treatment Firm and GJ25.1-89 Quality Standards for Water for Living General Use of Ministry of Housing and Urban-Rural Development of the People's Republic of China, so on-site recycling of sewage is realized.
Description
Technical field:
The present invention relates to technical field of waste water processing, particularly a kind of method of utilizing micro-wave energy fast processing waste water, this treatment process are to adopt polymeric flocculant to handle the method for waste water in conjunction with micro-wave energy.
Background technology
One, flocculation sediment sewage disposal technology
Flocculation sedimentation is generally to be used at present both at home and abroad increasing water quality a kind of not only economy but also easy water conditioning method of processing efficiency.Polymeric flocculant plays irreplaceable effect with its good flocculating result, decoloring ability and advantage such as easy and simple to handle in water treatment procedure, arouse extensive attention at home and abroad.Along with the reinforcement of people's environmental consciousness, more efficient, low toxicity, economic and practical polymeric flocculant will appear, also will effectively promote research simultaneously to the flocculation process basic theory.See that the patent No. is: 200610020454.0 Chinese invention patent specification sheets, it discloses " a kind of treatment process of high concentration organic sewage ", this treatment process be organic sewage in integrated degraded pond through microbiological deterioration and catalyzing oxidizing degrading, again through the degraded of the further electrolytic oxidation of electrochemical treatment; After the settling pond precipitate and separate, sludge incineration, catalytic oxidant reprocessing cycle are used; Sewage is again through microbiological deterioration of aftertreatment pond and electrochemical treatment, and precipitate and separate promptly gives off water up to standard or cyclically utilizing.
But the flocculation sediment technology is carried out sewage disposal and is also had certain defective, and is difficult to killing microorganisms.
Two, micro-wave energy sewage disposal technology
The micro-wave energy sewage disposal technology has changed traditional sewage disposal mode, makes sewage water treatment method become simpler and easy effective.Its principle is: the different substances in the microwave convection body carries out the heating of selectivity molecule; The physical reaction of the suction ripple material in the microwave convection body has the intensive katalysis; Solid phase particle in the fluid can converge sedimentation and water sepn rapidly in microwave field; Microwave heating is to inhale ripple material molecule direct heating, so waste water places microwave field, not only temperature rise is rapid, and microwave energy is very concentrated, at a lower temperature with regard to the energy killing microorganisms; Because the penetration of microwave convection body, it is very even to place the fluid of microwave field to show as heating; Can directly micro-wave energy be changed into heat energy owing to absorb the material molecule of micro-wave energy in the fluid, bring any new pollutent into therefore can for processed fluid, and save comprehensive power consumption.
The micro-wave energy sewage disposal technology has really been realized the small-sized decentralized of sewage treatment project, especially the sewage disposal demand that has adapted to present enterprise, sub-district, it begins to abandon the sewage work that we defend tenaciously for a long time need build the way of a large amount of length apart from the blow-off line net, can save substantial contribution.This technology can be saved the cost of sewage disposal in a large number also because microwave has the high frequency penetration to bacterium, algae; kill capability is extremely strong; killing microorganisms at short notice; very strong sterilization algae removal function is arranged; wherein blue-green algae only needs (30～40) second in microwave field, promptly pools sedimentation and water sepn behind the macrobead by microfine.
Micro-wave energy carries out running water to be handled, and adaptability is strong, and the processing rate height especially reaches more than 90% the high density of hardly degraded organic substance in the sewage, high turbidity, high chroma clearance, and the clearance of high salinity, high heavy metal content and petroleum-type pollutent is also very high.With the show as example of this technology in Lanzhou Petrochemical Company, its removal effect to COD, suspended substance, total plate count, petroleum-type is obvious, reaches 85.5%, 91.4%, 99% and 91% respectively, and effluent quality satisfies the requirement that enterprise replenishes fresh water.
But also there is certain defective in the micro-wave energy sewage disposal technology, for example, has many organic compound directly not absorb microwave, so microwave also can't be handled it.
Summary of the invention:
Technical problem to be solved by this invention is to overcome the shortcoming that single use flocculent precipitation or microwave treatment method are carried out sewage disposal, propose a kind of with the two method of utilizing micro-wave energy fast processing waste water that organically combines, this sewage water treatment method adaptability is strong, processing rate height, economic benefit and obvious social benefit.
For solving the problems of the technologies described above, the present invention has adopted following technical scheme: this process method step is as follows: 1, waste water is mixed with flocculation agent, and stir, produce flocculation sediment; 2, the waste water with the mixed flocculation agent passes through to carry out microwave treatment in the industrial microwave treatment facility; 3, the waste water through microwave treatment becomes the solid-liquid two-phase fluid, and this fluid is carried out solid-liquid separation, and the gas that waste water produced through microwave treatment discharges or reclaims simultaneously;
4, will handle respectively through the liquid after the solid-liquid separation, mud at last.
In this treatment process, flocculation agent is: simple molysite; Perhaps simple aluminium salt; Perhaps iron aluminium composite salt; Perhaps be mixed with the iron aluminium composite salt of catalyzer.
Above-mentioned simple molysite is selected from FeCl
3, PFS, PFC; Described simple aluminium salt is selected from PAC, AS, PAS; Described iron aluminium composite salt is above-mentioned simple molysite and simple aluminium salt mixture.
The catalyzer that adds in the above-mentioned iron aluminium composite salt is selected from: activity charcoal powder, sial calcium type, natural ore powder, transitional metallic compound, nano powder.
In this treatment process, described in microwave system microwave power be: 10～20KW/h; The flooding quantity of the microwave system of flowing through is: 100 cubic metres/h, add polymeric flocculant and be: 5ppm, be 0.3 second action time.
For technique scheme, the present invention combines flocculent precipitation and microwave treatment method and carries out sewage disposal.Its principle is: utilize the ＂ sensitizing agent ＂ of certain strong absorption microwave that micro-wave energy is passed to these materials and induced chemical reaction.Utilize these ＂ sensitizing agents ＂ just can under microwave radiation, realize some catalyzed reaction, so-called microwave induction catalytic reaction that Here it is.And many polymeric flocculants all have the effect of this sensitizing agent.Focus on the surface of certain flocculation agent by high strength continuous wave microwave radiation, because the strong interaction of flocculation agent surface point position and micro-wave energy, micro-wave energy will be transformed into heat energy, thereby make some surface point position optionally be heated to very high-temperature (for example being easy to above 1400 ℃) very soon.Although reaction water does not wherein obviously heat up, the effect that has produced High Temperature High Pressure but can react when the organic pollutant in the water contacts with the surface point position that is stimulated.The effect of flocculation agent not only is a thermal energy focus, but also can borrow it and reactant and the interactional selectivity of product and influence the process of reaction.The microwave chemical sewage disposal technology is exactly to utilize microwave these effects to chemical reaction, and the pollutent in the water is degraded by physics and chemical action, transform, thus the purpose of realization sewage purification.In addition, this has good decolouring flocculation agent in sewage pre-treatment process, remove the effect of suspended matter and colloidalmaterial, and this improves final effluent quality and all have great importance for the load and the energy consumption that reduce microwave treatment.
On the other hand, the method of utilizing micro-wave energy to dispose of sewage that adopts the present invention to propose, have that sewage disposal device is little, treatment capacity is big, it is little to take up an area of, water outlet and mud all can reach advantages such as direct reuse standard, thereby adapt to the sewage disposal requirement of various scales, avoided the huge pipeline network construction of centralized sewage disposal.Simultaneously, the micro-wave energy sewage water treatment method that the present invention proposes can be widely used in the processing of high density difficult degradation sewage such as papermaking, plating, printing and dyeing, food and sanitary sewage, heavy metals in its can thoroughly degrade COD, BOD, solidification sludge etc. have treatment effect preferably.
Because the ability that adopts micro-wave energy to carry out sewage disposal is limited separately, attempts to rely on purely micro-wave energy to handle a large amount of sewage and have very big difficulty.Therefore, the present invention adopts the materialization treatment technology that sewage is carried out pre-treatment, both can alleviate a part of burden of microwave treatment, can solve simple use materialization again when handling, and needs to consume a large amount of materialization reagent, the problem that expense is high; The most important thing is and microwave technology and materialization technology can be combined, not only can bring into play microwave to the unique effect of sewage, can also quicken the materialization processing speed greatly, just be based on above-mentioned cognition, just released this sewage water treatment method.The essence of this method is: the Sewage treatment systems that the materialization treatment technology of routine and micro-wave energy treatment technology are formed by the collocation of the distribution of optimum handling time, best processing power, this system can be in the shortest time, give full play to physical reaction to the effect of pollutent and micro-wave energy to the influence power of physical reaction and micro-wave energy to the specific function of water pollutant, sewage is purified.
In sum, the water quality after the present invention handles reaches GB18918-2002 urban wastewater treatment firm pollutant emission primary standard A standard, and the ministerial standard CJ25.1-89 of The Ministry of Construction of the People's Republic of China, MOC miscellaneous domestic water quality standard, realizes sewage resource utilization on the spot.
Description of drawings:
Fig. 1 is the schema of treatment process of the present invention;
Fig. 2 is the synoptic diagram of microwave processing equipment of the present invention.
Embodiment:
Method of wastewater treatment of the present invention may further comprise the steps:
One, waste water is mixed with flocculation agent, and stir, produce flocculation sediment;
Two, the waste water with the mixed flocculation agent passes through to carry out microwave treatment in the industrial microwave treatment facility;
Three, the waste water through microwave treatment becomes solid-liquid two-phase fluid, and this fluid is carried out solid-liquid separation, and the gas that waste water produced through microwave treatment discharges or reclaims simultaneously;
Four, will handle respectively through the liquid after the solid-liquid separation, mud at last.
Wherein, microwave power is in microwave system: 10～20KW/h; The flooding quantity of the microwave system of flowing through is: 80～120 cubic metres/h, add polymeric flocculant and be: 4～6ppm, be at least 0.3 second action time.
When using, present method should note following problem:
The screening of flocculation agent
Before carrying out wastewater treatment, at first to filter out flocculation agent, filter out the screening of low cost, high-effect medicament.
That says here is high-effect, be not high-effect on simple finger coagulating is learned, but has coagulating simultaneously and micro-wave energy absorbs high-effect that both have both, therefore research work must be that lab setup and 5000 ton per day industrialized units carry out synchronously, and the lab setup that the present invention adopts is cover six a coagulation test micro-wave digestion device+serial water quality analyzers+serial chemical agent analyser.
Through overtesting, simple molysite is selected from FeCl in the flocculation agent that the present invention adopts
3, PFS, PFC; Described simple aluminium salt is selected from PAC, AS, PAS; Described iron aluminium composite salt is above-mentioned simple molysite and simple aluminium salt mixture.Wherein, the catalyzer that adds in the described iron aluminium composite salt is selected from: activity charcoal powder, sial calcium type, natural ore powder, transitional metallic compound, nano powder.
The selection of microwave wave source
Microwave is the hertzian wave of a kind of wavelength about from 1mm to 1m.(300MHz～300GMHz), so also be the overclocking hertzian wave, it has electromagnetic such as reflection, transmission, interference, diffraction, polarization and be accompanied by the electromagnetism wave energy and carry out wave characteristics such as energy transmission because the frequency of microwave is very high.
Experiment and theory all prove, following relationship is arranged between the DIELECTRIC CONSTANT r of 2 powers, frequency f, dielectric loss coefficient tg δ and the material of microwave power (also can be understood as the microwave power that absorbs in the material of the unit volume) Pa of the material internal loss of unit volume and electric field strength E:
Pa＝(1/1.8)f×E
2×εr×tgδ×10
-2
In the formula
The microwave power that material absorbed of Pa-unit volume (watt/centimetre
3);
F-microwave frequency, (conspicuous);
E-strength of electric field, (volt/centimetre);
Because in fact strength of electric field be difficult to measure, and can only convert generally.
Industrial microwave its frequency of present stage generally is only limited to two kinds of 915MHz and 2450MHz.Microwave is relevant with its oscillation frequency to the penetrativity of inhaling ripple material (as water), oscillation frequency is higher, and a little less than penetrativity healed, frequency was that (wavelength is 12.2 centimetres a microwave to 2450MHz, depth of penetration to water is 2.3cm, and the degree of depth that penetrates of sewage is about 3-5cm; Frequency is 32.8 centimetres a microwave for the 915MHz wavelength, is 20cm to the depth of penetration of water, and the depth of penetration of sewage is about 22～25cm.
Utilize the characteristic such as ultra high frequency, reflectivity, penetrance, absorbability, fluctuation of microwave to go to carry out sewage disposal, although the production of microwave wave source is various, the required wave source of sewage disposal has its inherent characteristics, as high-power etc.The supply of the various components and parts of microwave also has it self limitation in addition, as: the core of microwave wave source--magnetron, the magnetrons of a large amount of uses of present stage, 915MHz's, peak power is 20kW, not less than the series product of 20kW, and work-ing life not high (about 3000 hours), replacement cost height, but its penetration depth is big, and processor structure is simpler comparatively speaking; 2450MHz's, because applied range, peak power commonly used is 10kW, miniaturization now (kilowatt having from several hectowatts～tens), changes simple, low, the easy purchase of price, but treater is complicated.Based on this situation,, weigh the advantages and disadvantages and select different wave sources for use according to making factors such as complexity, maintenance good economy performance, easily buying of major part, reaction effect, watt level.
The design of microwave system
Microwave processing equipment of the present invention comprises: one is used for and will slows down the preceding emptying water tank 1 of inflow waste water flow velocity; One is used for mixing tank 2 that waste water is mixed, stirs with flocculation agent; A pair of waste water carries out the treater 3 of microwave treatment, this treater 3 comprises a microwave reaction chamber 31, be installed in the wave source 32 of microwave reaction chamber 31 1 sides and be positioned at the sprue 33 in microwave reaction chamber 31, and wherein microwave waste water passes microwave reaction chamber 31 by sprue 33; One is used for the back emptying water tank 4 of combustion gas; Waste water after a pair of processing carries out the settling chamber 5 of solid-liquid separation; Above-mentioned preceding emptying water tank 1, mixing tank 2, treater 3, back emptying water tank 4 and settling chamber 5 are communicated with successively.
The effect of preceding emptying water tank 1 has two:
The one, destroy having pressure-feed system, drainage flow thereafter is from stream mode, reduce the energy expenditure of sewage transport.This is because sewage need adopt pump that water is pumped into usually, has certain pressure in the sewage that pumps into by pump like this, so preceding emptying water tank 1 can flow in the next facility sewage compression failure under the state of nature that the water level discrepancy in elevation forms.
The 2nd, the adding of materialization reagent is become realize easily.
The calculation formula of preceding emptying water tank capacity.
Q1＝C×Q
Q---unit time sewage load (m wherein
3/ h)
Q1---preceding emptying water tank capacity (m
3)
C---preceding volumetric coefficient, general desirable 0.015～0.020
Example: suppose Q=100 (m
3/ h), C=0.015
Q1==1.5 (m then
3)
The mixing tank 2 that stirs is used for flocculation agent and sewage thorough mixing are stirred.According to experiment repeatedly, analysis to experimental system.Sewage can be provided with as the case may be in this residence time, this time should be long a bit a bit good than short, but take into account most economical manufacturing cost and can satisfy system and can give the time requirement required with physical reaction, we draw sewage at this most optimal retention time for to be advisable more than or equal to 24 minutes.
The reasonable flow velocity of communicating pipe inner fluid is mainly considered in the design of the caliber of sprue 33 in the treater 3, flow velocity is too fast will to cause that system noise is excessive, and the too small pipeline cost that then can cause is too high, and both take into account by need, through test, it is comparatively suitable that we think that the interior effluent flow rate of pipe is not more than 0.4m/s.Main flow deferent latus rectum calculation formula:
D1＝(8.84×10
-4×Q)×2
D1---pipe connecting latus rectum (m) wherein
Q---unit time sewage load (m
3/ h)
Example: suppose Q=100 (m
3/ h)
D1=0.297 (m) then
The effect of back emptying water tank 4 is to allow come out from microwave treater and the sewage that contains a large amount of gases has a deflated place, influence the sedimentation effect of settling tank to prevent existing of these gases, obtain from actual measurement, gas can be discharged from water substantially after 10～20 minutes.Simultaneously also can allow water flow automatically to the settling chamber, save conveying capacity.Back emptying water tank volumetrical calculation formula
Q2＝D×Q
Q---unit time sewage load (m wherein
3/ h)
Q2---back emptying water tank capacity (m
3)
D---back volumetric coefficient, general desirable 0.15～0.35
Example: suppose Q=100 (m
3/ h), D=0.25
Q2=25 (m then
3)
Settling chamber 5 adopts vertical-flow settling chamber commonly used in the common Sewage treatment systems.
The present invention has the following advantages compared with prior art:
(1), make the microwave can be under lower energy consumption, catalytic decomposition organism, inorganic pollutent by selecting proper drug for use.
(2) kill harmful microorganism and pathogenic agent efficiently, the mud after the separation can not produce secondary pollution.
(3) can produce the high quality clear water within a short period of time, reaches surface water three class standards.
(4) occupation area of equipment is little, can integrated Large scale construction handle or dispersion treatment construction on a small scale.
(5) sewage disposal is not influenced by weather, start operation at any time or shutdown.
(6) can implement to supervise at a distance the sewage disposal equipment operation conditions of dispersion treatment, make things convenient for functional department effectively to manage.
(7) micro-wave energy sewage disposal equipment is to take place simultaneously at the adding medicine in early stage by micro-wave energy degradation process and positively charged ion medicament flocculation process, has greatly improved the utilising efficiency of micro-wave energy.
Use when of the present invention, at first select suitable flocculation agent for use according to the characteristics of dissimilar sewage, and definite optimal coagulant dose and dosing mode (work of this part is finished in the laboratory).The user can select according to testing data.Then, sewage is pumped into pressure release in the preposition emptying water tank 1 by water pump, flows in the mixing tank 2 again, and drop into flocculation agent and (select simple molysite to be selected from FeCl this moment
3), waste water is mixed, stirs with flocculation agent.Sewage through the flocculation agent preliminary treatment carries out the microwave method processing through fluid handling special microwave device 3 again, wherein the wave source of microwave oven is selected 2450MHz, mainly be to consider its applied range, peak power commonly used is 10kW, miniaturization now (kilowatt having), change simple, low, the easy purchase of price, can satisfy the requirement of sewage disposal substantially from several hectowatts～tens.Wherein the mechanism of action of chemical floc in microwave field can be inferred and draws to draw a conclusion:
A. the medicament composition and with the pollutant reaction product, even flocs unit (mud) has all played micro-wave energy and has absorbed the body effect that cuts in microwave field.
B. microwave field has promoted hydrolysis, the polymerization of agent molecule, has strengthened the attraction function of water Jie polymerisate to water pollutant, and macromole COD total amount decreasing ratio can reach 100%.
C. microwave field has promoted the chemical action (reaction, complexing, catalysis, oxidation, reduction or the like) of agent molecule and water pollutant molecule, makes the fracture of pollutent macromolecular chain, and the small molecules degraded is so the total decreasing ratio of COD is up to more than 90%.
D. microwave field has promoted the dehydration of the flocs unit that medicament and water form, and the moisture percentage in sewage sludge that makes discharge is reduced to 71% by former mud more than 98%, and sedimentation is fast.
E. microwave field makes microorganism cells film rupture or the disconnection of DNA chain in the mud, thereby makes discharge mud bacteria content reduce more than 98%.
F. microwave field makes metal ion-modifiedly, and more firm with mud (or flocs unit) absorption, and it is very little to make the heavy metal of discharging mud leach toxicity, reach state-set standard, colibacillus of excrement in the mud, streptococcus faecium and Pasteur bacterium reach the level of not detecting, and show that mud is innoxious.
Through after the microwave treatment, handled thing enters back emptying water tank 4, the gas that produce in the treating processes this moment can discharge or recycling, remaining fluid inflow settling chamber 5 carries out solid-liquid separation and obtains clear water and mud, wherein clear water can enter the production cycle utilization, and mud is as colleges and universities' organic composite fertilizer good raw material.
Example 1 adds iron aluminium polymeric flocculant 5ppm, and microwave power 20KW/h acts on 0.3 second, 100 cubic metres/h of water inlet
Sewage is taken from certain sewage work, and former water pH is 7.3, NH
3-N is 31.6ppm, and COD is 352ppm, and BOD is 54ppm, and colourity is 92, and total plate count is 24000, is that the water outlet pH of 20KW/h microwave treatment after 0.3 second is 7.17 through power, NH
3-N is 3.42ppm, and decreasing ratio is 97.2%; COD is 9ppm, and decreasing ratio is 100%; BOD＜2ppm, decreasing ratio reaches 99.5%; Colourity is 7, decreasing ratio 83.8%; Total plate count is 420, and decreasing ratio is 98.3%.Water outlet reaches I class A emission standard and ground III class reuse standard.
Example 2 sanitary sewage disposals experiment
Sewage is taken from certain commercial zone sanitary sewage, contains volatile phenol 0.012mg/L, prussiate 0.004mg/L, COD 109mg/L, suspended substance 94.8mg/L, ammonia nitrogen 14.5mg/L, BOD in the raw waste water
549.3mg/L, 198667/L of total plate count, add iron aluminium polymeric flocculant 3ppm, through power 20KW/h microwave treatment 0.3 second, contain volatile phenol 0.004mg/L, prussiate 0.002mg/L, COD 15.8mg/L, suspended substance 8.1mg/L, ammonia nitrogen 8mg/L, BOD in the water outlet
54.3mg/L, 1693/L of total plate count, clearance reaches 66.7%, 50%, 85.5%, 91.5%, 44.8%, 91.3% and 99.1% respectively.Experiment has reached ground III class reuse standard and industrial fresh water replenishes water quality standard.
The experiment of example 3 electroplating wastewater processing
The electroplating wastewater of getting certain Electroplate Factory carries out the microwave treatment experiment, and raw waste water pH is 1.64, and COD is 182mg/L, sexavalent chrome 0.162mg/L, prussiate 11.1mg/L, ammonia nitrogen 10.6mg/L, phosphoric acid salt 9.46mg/L, copper 16.5mg/L, plumbous 0.504mg/L, zinc 8.15mg/L adds iron aluminium polymeric flocculant 3ppm, through power 20KW/h microwave treatment 0.3 second, water outlet pH is 7.56, and COD is 40.0mg/L, sexavalent chrome 0.033mg/L, prussiate 0.018mg/L, ammonia nitrogen 0.24mg/L, phosphoric acid salt does not detect, copper 0.311mg/L, lead does not detect, and zinc does not detect.Stable water outlet is up to standard, and every after testing effluent index all reaches Guangdong Province's " water pollutant emission limit " (DB44/26-2001)
The experiment of example 4 treatment of dyeing wastewater
The dyeing and printing sewage of getting certain printing and dyeing mill carries out microwave sewage disposal experiment, and former water ph value is 8.1, colourity 789, SS 897mg/L, BOD
588mg/L, CODcr 476mg/L, NH
3-N 27mg/L, CL
-19mg/L, total hardness 89 is added iron aluminium polymeric flocculant 2ppm, and through power 20KW/h microwave treatment 0.3 second, going out water ph value was 7.4, colourity 48, clearance is 94.0%, SS 54.7mg/L, clearance are 94.0%, BOD
512.1mg/L, clearance 86.3%, CODcr 57.2mg/L, clearance 88.0%, NH
3-N 4.3mg/L, clearance 84.1%, CL-3.3mg/L clearance are 82.6%, total hardness 0.48 is (with CaCO
3Meter), clearance reaches 99.5%, and water outlet reaches dyeing waste water emission standard DB44/26 second periods two class one-level.
Claims (5)
1, a kind of method of utilizing micro-wave energy fast processing waste water, it is characterized in that: this treatment process comprises the steps:
One, waste water is mixed with flocculation agent, and stir, produce flocculation sediment;
Two, the waste water that will be mixed with flocculation agent carries out microwave treatment by in the industrial microwave treatment facility;
Three, the waste water through microwave treatment becomes solid-liquid two-phase fluid, and this fluid is carried out solid-liquid separation, simultaneously the gas that waste water produced through microwave treatment is discharged or reclaims;
Four, will handle respectively through the liquid after the solid-liquid separation, mud at last.
2, a kind of method of utilizing micro-wave energy fast processing waste water according to claim 1, it is characterized in that: described flocculation agent is: simple molysite; Perhaps simple aluminium salt; Perhaps iron aluminium composite salt; Perhaps be mixed with the iron aluminium composite salt of catalyzer.
3, a kind of method of utilizing micro-wave energy fast processing waste water according to claim 2, it is characterized in that: described simple molysite is selected from FeCl
3, PFS, PFC; Described simple aluminium salt is selected from PAC, AS, PAS; Described iron aluminium composite salt is above-mentioned simple molysite and simple aluminium salt mixture.
4, a kind of method of utilizing micro-wave energy fast processing waste water according to claim 2 is characterized in that: the catalyzer that adds in the described iron aluminium composite salt is selected from: activity charcoal powder, sial calcium type, natural ore powder, transitional metallic compound, nano powder.
5, according to any described a kind of method of utilizing micro-wave energy fast processing waste water among the claim 1-4, it is characterized in that: the microwave power of described microwave equipment is: 10～20KW/h; The flooding quantity of microwave equipment of flowing through is: 80～120 cubic metres/h, add polymeric flocculant and be: 4～6ppm, be at least 0.3 second action time.
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| CN103086522A (en) * | 2013-03-04 | 2013-05-08 | 徐有生 | Treatment method of microwave softened hardwater |
| CN103723873A (en) * | 2014-01-10 | 2014-04-16 | 福建省双旗山矿业有限责任公司 | Method for treating waste acid in acid-making with smelting gas |
| CN106630506A (en) * | 2016-07-01 | 2017-05-10 | 吴彦兴 | Biological and physical degradation regeneration method for sludge without discharge (pollution) recovery |
| CN107487956A (en) * | 2017-09-29 | 2017-12-19 | 西南科技大学 | The method that microwave Fenton methods handle radioactive wastewater |
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2008
- 2008-12-31 CN CNA2008102206323A patent/CN101456604A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798163A (en) * | 2010-04-16 | 2010-08-11 | 胜利油田胜利勘察设计研究院有限公司 | Method for accelerating microwave pyrolytic process of oily sludge by pyrolyzing residue thereof |
| CN103086522A (en) * | 2013-03-04 | 2013-05-08 | 徐有生 | Treatment method of microwave softened hardwater |
| CN103086522B (en) * | 2013-03-04 | 2014-07-09 | 徐有生 | Treatment method of microwave softened hardwater |
| CN103723873A (en) * | 2014-01-10 | 2014-04-16 | 福建省双旗山矿业有限责任公司 | Method for treating waste acid in acid-making with smelting gas |
| CN106630506A (en) * | 2016-07-01 | 2017-05-10 | 吴彦兴 | Biological and physical degradation regeneration method for sludge without discharge (pollution) recovery |
| CN106630506B (en) * | 2016-07-01 | 2019-09-13 | 吴彦兴 | Biological and physical degradation regeneration method for sludge recycling without pollution discharge |
| CN107487956A (en) * | 2017-09-29 | 2017-12-19 | 西南科技大学 | The method that microwave Fenton methods handle radioactive wastewater |
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