CN101648767A - Method and system for processing hot-rolling and emulsifying wastewater for aluminum plate - Google Patents
Method and system for processing hot-rolling and emulsifying wastewater for aluminum plate Download PDFInfo
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- CN101648767A CN101648767A CN200910158810A CN200910158810A CN101648767A CN 101648767 A CN101648767 A CN 101648767A CN 200910158810 A CN200910158810 A CN 200910158810A CN 200910158810 A CN200910158810 A CN 200910158810A CN 101648767 A CN101648767 A CN 101648767A
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Abstract
The invention provides a method for processing hot-rolling and emulsifying wastewater for an aluminum plate, comprising the following steps: (a) performing hydrolytic acidification on emulsifying wastewater after feoatation treatment; (b) performing degradation treatment on emulsifying wastewater after hydrolytic acidification with SBR; (c) performing biological contact oxidation on the emulsifying wastewater after SBR degradation treatment; and (d) purifying the emulsifying wastewater after biological contact oxidation by a constructed wetland system. The invention further provides a system for processing hot-rolling and emulsifying wastewater for an aluminum plate, comprising a hydrolytic acidification tank for performing hydrolytic acidification on organism in wastewater, an SBR reaction tank for performing the first-level decomposition on the organism in wastewater, a biological contact oxidation tank for performing the second-level decomposition on the organism in wastewater and aconstructed wetland for purifying wastewater exhausted from the biological contact oxidation tank. The processing method applied to feoatation treatment has higher removal rate to COD, enables the discharge of emulsifying wastewater to reach the national standard and ensures convenient maintenance of system operation and simple management.
Description
Technical field
The present invention relates to method of wastewater treatment and system, be specifically related to the treatment system of aluminum plate hot rolling emulsifying waste water treatment process and aluminum plate hot rolling emulsifying waste water.
Background technology
Aluminium sheet is widely used in grocery trade and pharmacy industry, and market is very fast to the development of demand of aluminium sheet, and hot rolling is an important process in the aluminium sheet production process, and aluminum plate hot rolling is a raw material with the aluminium base, after the heating of aluminium base, is rolled into aluminium sheet by roughing unit and finishing train.
In the aluminum plate hot rolling process, cool off for aluminium being lubricated the bonding and the breaker roll that prevent aluminium, adopt the emulsion that mixes by base oil, various additive and water, this emulsion is a milky white liquid.Hot rolling adds the use of emulsion in man-hour for recycling, and emulsion can be aging after using for some time.Waste emulsion after the inefficacy is canescence, leave standstill the back liquid level black oil reservoir is arranged, water quality analysis shows, contain multiple organic pollutant in the water, COD content is very high, COD is chemical oxygen demand (COD) (Chemical Oxygen Demand), be under certain conditions, amount with the oxygenant that reducing substances was consumed in the oxidation 1 premium on currency sample is an index, be converted to every premium on currency sample all oxidized after, the milligram number of the oxygen that needs is represented with mg/L, be what a index of reducing substances in the expression water, reflected the degree that polluted by reducing substances.If the waste emulsion that contains a large amount of COD that will lose efficacy directly discharging can cause water hypoxia, influence the growth of organism in water, the self-purification ability of reduction water body causes environmental pollution, and a large amount of oils is discharged also and can causes the wasting of resources in the emulsion.Therefore, waste emulsion need be handled and can discharge.
Waste emulsion after the inefficacy generally at first adopts demulsification technology to handle, destroy the stability of emulsion by external force or chemical reaction, make emulsion oily water separation, by breakdown of emulsion with the oil recovery in the waste emulsion, after isolating oils, remaining emulsifying waste water carries out coagulation-air-float technology to be handled.Please refer to Fig. 1, Fig. 1 is the process flow sheet that coagulation-air-float technology is handled the aluminum plate hot rolling emulsifying waste water.Emulsifying waste water behind the breakdown of emulsion at first enters the advection equalizing tank and regulates, and the oil slick of separating out the surface in the advection equalizing tank is removed, and reclaims after collecting, and scum silica frost is collected after removing and carried out sludge drying, and emulsifying waste water enters in the reaction tank then.Emulsifying waste water and coagulating agent react in reaction tank, and the oil under the effect of coagulating agent in the emulsifying waste water, suspended substance and dissolved organic matter flocculation produce flocs unit.The emulsifying waste water that has flocs unit enters air flotation pool, the dissolved air water that simultaneously molten gas tower produces also enters air flotation pool, dissolved air water enters behind the air flotation pool and produces a large amount of micro-bubbles because pressure discharges suddenly, these micro-bubbles the flocs unit in the emulsifying waste water sweep along, jacking forms air supporting mud to air flotation pool surface, air supporting mud carries out sludge drying after removing, waste water after the air supporting enters clean water basin, and portion water is pumped down to the interior dissolved air water of making of molten gas tower and is used for air supporting, remaining discharge of wastewater.
The waste emulsion composition that aluminum plate hot rolling produces is comparatively complicated, wherein contain organic compositions such as oils, tensio-active agent, COD content is still very high in the emulsifying waste water behind the breakdown of emulsion, coagulating agent can't flocculate out fully with the organism of solubility, the COD clearance is low after coagulation-air supporting is handled, and the COD value is higher in the emulsifying waste water of discharging can not reach discharging standards.
Summary of the invention
The problem that the present invention solves is to provide a kind of treatment process of aluminum plate hot rolling emulsifying waste water, and this treatment process is applied to for COD higher removal is arranged after the conventional air supporting processing.
The present invention also provides a kind of treatment system of aluminum plate hot rolling emulsifying waste water.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
A kind of treatment process of aluminum plate hot rolling emulsifying waste water comprises:
A) acidifying that will be hydrolyzed through the emulsifying waste water that air supporting is handled;
B) emulsifying waste water after using SBR with acidication carries out degradation treatment;
C) will carry out bio-contact oxidation through the emulsifying waste water of SBR degradation treatment;
D) will purify by artificial wet land system through the emulsifying waste water that bio-contact oxidation is handled.
As preferably, the hydraulic detention time of described acidication is 15h～25h.
As preferably, the sludge concentration of described acidication is 15g/L～25g/L.
As preferably, the microorganism of the active sludge that described SBR uses is the microorganism with the enzyme system of decomposing the aluminum plate hot rolling emulsifying waste water that inoculation, domestication back form.
As preferably, described SBR weekly working time phase be 4.8h～12h.
As preferably, the sludge concentration of described SBR is 3g/L～5g/L.
As preferably, the BOD loading of described SBR is 0.1kgBOD
5/ (m
3D)～1.3kgBOD
5/ (m
3D).
As preferably, the hydraulic detention time of described bio-contact oxidation is 15h～22h.
As preferably, the sludge concentration of described bio-contact oxidation is 10g/L～20g/L.
As preferably, the BOD loading of described bio-contact oxidation is 1.8kgBOD
5/ (m
3D)～2.2kgBOD
5/ (m
3D).
As preferably, the dissolved oxygen content of described bio-contact oxidation is 2.5mg/L～5mg/L.
A kind of treatment system of aluminum plate hot rolling emulsifying waste water, the hydrolysis acidification pool that comprises organic substance in the acidication waste water, organism in the waste water is carried out the sbr reactor pond that the first step is decomposed, the biological contact oxidation pond that organism in the waste water is carried out decomposing the second stage, the artificial swamp that the waste water of discharging is purified from biological contact oxidation pond.
As preferably, described hydrolysis acidification pool is a up flow anaerobic sludge blanket reactor.
As preferably, described sbr reactor pond is microbial film sbr reactor pond.
As preferably, the filler in described sbr reactor pond is a suspension ball filler.
As preferably, described artificial swamp is a subsurface flow wetland system.
The treatment process of aluminum plate hot rolling emulsifying waste water provided by the invention, this treatment technology is applied to after the conventional air supporting processing, mainly utilize the biochemical method of acidication-SBR-bio-contact oxidation-artificial swamp to handle emulsifying waste water, organism in the degrading waste water, for COD higher removal is arranged, the discharging of emulsifying waste water is up to state standards, system's running maintenance is convenient, management is simple, and running cost is lower.
Description of drawings
Fig. 1 is the process flow sheet that coagulation-air-float technology is handled the aluminum plate hot rolling emulsifying waste water;
Fig. 2 is the processing technological flow figure of aluminum plate hot rolling emulsifying waste water of the present invention.
Embodiment
In order further to understand the present invention, below in conjunction with embodiment the preferred embodiment of the invention is described, but should be appreciated that these describe just to further specifying the features and advantages of the present invention, rather than to the restriction of claim of the present invention.
Please refer to Fig. 2, Fig. 2 is the processing technological flow figure of aluminum plate hot rolling emulsifying waste water of the present invention.The treatment process of aluminum plate hot rolling emulsifying waste water provided by the invention comprises:
A) acidifying that will be hydrolyzed through the emulsifying waste water that air supporting is handled;
B) emulsifying waste water after using SBR with acidication carries out degradation treatment;
C) will carry out bio-contact oxidation through the emulsifying waste water of SBR degradation treatment;
D) will purify by artificial wet land system through the emulsifying waste water that bio-contact oxidation is handled.
The aluminum plate hot rolling emulsifying waste water of handling through coagulation-air-float technology at first enters the hydrolysis acidification pool acidifying that is hydrolyzed.Still contain higher COD in the emulsifying waste water after coagulation-air supporting, the BOD/COD value is lower than 0.3.BOD is biochemical oxygen demand (BOD) (Biochemical OxygenDemand), refers under aerobic conditions by the required oxygen amount of organism in the microbiological deterioration water, is an overall target of aerobic pollution matter content such as organism in the expression water.The value of BOD/COD is the index of Biodegradability of Wastewater, and when BOD/COD 〉=0.3, sewage just has biodegradability.Can be less in the emulsifying waste water by the material that microorganism utilizes, BOD/COD＜0.3 biodegradability is poor, in order to improve follow-up biochemical treatment effect, adopts acidication technology that emulsifying waste water is carried out pre-treatment.Acidication is mainly used in the higher sewage treatment process of organic concentration, and the acidication process is not thoroughly finished organic degraded task, but has changed organic form.The mechanism of action of acidication is: anaerobic treatment is controlled at hydrolysis and souring stage, under the effect of a large amount of hydrolytic bacterias, acid-producing bacteria, be dissolved matter promptly with insoluble hydrolysis of organic matter, larger molecular organics matter is degraded to small-molecule substance, with the mass degradation of bio-refractory is the material of easy biochemical degradation, improved the biodegradability of emulsifying waste water, the content of BOD increases in the waste water, and BOD/COD is improved.The material of these small-molecule substances and easy biochemical degradation can effectively be utilized by follow-up processing.Therefore good acidication treatment process is the important measures of whole emulsifying waste water treatment system water quality reaching standard.Emulsifying waste water complicated component of the present invention, organic content is higher, and the acidication hydraulic detention time is longer, is preferably 15h～25h, and sludge concentration is preferably 15g/L～25g/L.
The required oxygen of acidication seldom is controlled at below the 0.5mg/L, near anaerobism.The type of hydrolysis acidification pool of the present invention is a up flow anaerobic sludge blanket reactor, divide Sludge Bed district and clear pelagic division in the hydrolysis acidification pool, emulsifying waste water is entered in the pond by reactor bottom, mix uniformly, waste water penetrates whole Sludge Bed and carries out mud-water separation when rising, Sludge Bed is thicker, filler is set, microorganism is hung on filling surface, Sludge Bed is similar to filtering layer, particulate matter in the water inlet and colloidalmaterial are held back rapidly and adsorbed, because Sludge Bed contains the aerobic-anaerobic microbe of high density, under the anoxia condition, the organic substance in the emulsifying waste water is a large amount of hydrolysis bacterium in the pond, under the acid-producing bacteria effect, be dissolved matter with insoluble hydrolysis of organic matter, larger molecular organics matter is degraded to small-molecule substance, with the mass degradation of bio-refractory is the material of easy biochemical degradation, and last waste water rises to pelagic division clearly, enters follow-up treatment process from the water leg water outlet.
Through after the pre-treatment of acidication, the treatment stage that emulsifying waste water entering SBR.SBR is the abbreviation of Sequencing Batch Reactor Activaten Sludge Process, is the sequence intermittent activated sludge process, claims sequencing batch active sludge again, is a kind of biochemical sewage disposal technology that moves by the intermittent aeration mode.Different with traditional waste water treatment process, the operating method of the alternative space segmentation of operating method that the SBR technology employing time is cut apart, its principal character is the orderly and periodical operation in operation, be the loop cycle activated sludge process that functions such as even water quality, biological degradation, sedimentation and drawing are integrated in one, no mud return-flow system.Complete cycle of SBR comprises fill phase, step of reaction, precipitate phase, discharge phase, idle stage, and emulsifying waste water by sequence, enters each reaction process off and in reaction tank.Behind the outflow reactor, new waste water just enters in the reaction tank water after handling previous stage, and this moment, reaction tank played the effect of equalizing tank; After waste water entered and reaches predetermined volume, step of reaction began, and reaction tank plays the effect of aeration tank, and organism is degraded under action of microorganisms, was produced air and was fed by gas blower and carry out aeration in the reaction tank; React as required and stop aeration after for some time and enter precipitate phase, reaction tank plays the effect of second pond, and mixed solution wherein remains static, and discharges reaction tank through the post precipitation supernatant liquor; Enter the idle stage, reactor is in idle state, wait for the next operational cycle, during this period, be interrupted or a little aeration to avoid the corruption of mud, be in starvation through idle mud, therefore when entering next cycle of operation, active sludge just can be brought into play stronger adsorptive power enhancing Degradation.
Sbr reactor pond simple structure is convenient to operation, can resist water impact load and organic concentration impact load, and each operation can be adjusted according to water quality and quantity, and flexible operation does not need returned sluge, and operating performance is stable, and effluent quality is good.As preferably, SBR of the present invention weekly the working time of phase be 4.8h～12h, sludge concentration is preferably 3g/L～5g/L, BOD loading is preferably (0.1～1.3) kgBOD
5/ (m
3D).
Sbr reactor of the present invention pond is preferably the biofilm SBR reaction tank, filler is set in the pond, filler is a suspension ball filler, come organism in the degradation of sewage in step of reaction by prolific microbial population, but because emulsifying waste water complicated component, organic content is more, conventional active sludge is difficult to survive in emulsifying waste water and breed, the present invention is by inoculation, domestication, make conventional microorganisms make a variation, have the specific enzyme system that to decompose emulsifying waste water, can in emulsifying waste water, survive and breed, decompose the organism in the emulsifying waste water.
Through behind the SBR, the COD content in the emulsifying waste water approximately can remove 40%～60%, and the water outlet of SBR enters biological contact oxidation pond then and begins the bio-contact oxidation stage, and the organism that SBR can't decompose fully further reduces by biological contact oxidation process.Biological contact oxidation process is a kind of biomembrance process between activated sludge process and biological filter, mainly utilize apposition growth to carry out the organic sewage processing in the microorganism of filling surface, the BOD loading of bio-contact oxidation is higher, higher biological concentration is arranged, current belong to complete mixed type, adaptive faculty to the water impact load of water inlet and organic concentration impact load is strong, can not produce sludge bulking, do not need returned sluge, running is convenient, surplus sludge volume is few, and is strong to organic decomposing oxidation ability.As preferably, the hydraulic detention time of bio-contact oxidation of the present invention is 15h～22h, and sludge concentration is preferably 10g/L～20g/L, and BOD loading is preferably (1.8～2.2) kgBOD
5/ (m
3D), dissolved oxygen content is preferably 2.5mg/L～5mg/L, is produced air and is fed by gas blower and carry out aeration in the reaction tank.Through behind the bio-contact oxidation, the COD content of removing in the emulsifying waste water is to enter bio-contact oxidation 50%～75% during stage.
Biological contact oxidation pond is the submergence aeration type, and filler wherein is set, and filler is submerged in the waste water, covers with microbial film on the filler, and in waste water and the microbial film contact process, the organism in the water is by microorganism absorption, oxygenolysis and be converted into new microbial film.Aeration carries out oxygenation to waste water at the bottom of the pond, and make the waste water in the pond be in flow state, to guarantee that sewage fully contacts with filler in the sewage, aeration has also played agitaion to microbial film, make the bigger speed of relative movement of generation between current and the microbial film, quickened biomembranous renewal, strengthen mass transfer effect, improve biological activity, accelerated biological metabolism speed.
Final emulsion waste water flows into artificial swamp and purifies after being flowed out by biological contact oxidation pond.The artificial swamp treatment technology utilizes the method for ecological engineering, and the specific wetland plant of plantation is set up artificial Wetlands ecosystems on certain filler.Waste water is had batching on the artificial wetland of building of control, and waste water mainly utilizes physics, chemistry, the biological triple synergies of soil, artificial dielectric, plant, microorganism in process of flowing in a certain direction, to waste water, carry out purifying treatment.Physical action mainly is to can sinking the precipitating action of solid, insoluble organic etc., and filler and root system of plant are to the filtration and the adsorption of pollutent; Chemical action is meant in the artificial wet land system the various chemical reaction processes that the diversity owing to plant, filler, microorganism and enzyme takes place, and comprises chemical precipitation, ion-exchange, redox etc.; Biological action then mainly is effects such as the metabolism of the metabolism that relies on microorganism, plant and absorption, reaches the removal to pollutent.At last by to the periodic replacement of wet land filler or to the harvesting of serike, and pollution substance is finally removed from system.
The type of artificial wet land system can be divided into: surface flow wet land system, subsurface flow wetland system, vertical-flow wetland system.As preferred artificial swamp provided by the invention is subsurface flow wetland system.Subsurface flow wetland system also claims the infiltration wetland system, such artificial swamp, and waste water is in wetland bed internal flow, and water level is darker, utilizes being used for that the microbial film of filling surface growth, abundant root system of plant and veneer of soil and filler hold back to purify waste water.Since current on the face of land with current downflow, good heat insulating, treatment effect is subjected to weather effect little, sanitary condition is better, hydraulic load and organic loading are big, stable effluent quality.
The used filler of artificial swamp is the building stones of different-grain diameter among the present invention, for plant provides physical support, adheres to for all cpds and complicated ions provide reaction interface and microorganism provided.Plant is selected wetland plants such as Herba Poae Sphondylodis for use, increases diversity as far as possible to improve the comprehensive treatment capability of wet land system.This technology construction running cost is lower, and effluent quality is good, and is simple to operate, because select suitable wetland plant also to have the effect of beautifying the environment simultaneously.Emulsifying waste water discharges after flowing through artificial swamp, and COD content reaches discharging standards below 100mg/L after testing.
Aluminum plate hot rolling emulsifying waste water treatment process provided by the invention is the follow-up advanced treatment of physico-chemical process.Emulsifying waste water after handling through coagulation one air supporting at first enters the hydrolysis acidification pool acidifying that is hydrolyzed, with insoluble hydrolysis of organic matter is dissolved matter, larger molecular organics matter is degraded to small-molecule substance, with the mass degradation of bio-refractory is the material of easy biochemical degradation, has improved the biodegradability of emulsifying waste water.Acidication is handled emulsifying waste water inflow sbr reactor pond, back and is carried out biochemical degradation, and the operating method of the alternative space segmentation of operating method that the employing time is cut apart is integrated in one functions such as even water quality, biological degradation, sedimentation and drawing.Emulsifying waste water flows into biological contact oxidation pond after being flowed out by the sbr reactor pond, and the organism that SBR can't decompose fully further reduces by bio-contact oxidation.After flowing out biological contact oxidation pond, final emulsion sewage is handled by artificial swamp and is purified, the water outlet discharging after the purification, the processing of emulsifying waste water can reach more than 90% to the clearance of COD on the whole, water outlet COD content is below 100mg/L, and effluent quality is good, reaches discharging standards.
Embodiment:
The emulsion that aluminum plate hot rolling of the present invention uses is Houghton board hot-rolling oil, the waste emulsion that the aluminum plate hot rolling process produces is through behind the breakdown of emulsion, and emulsifying waste water carries out coagulation-air-float technology, water outlet COD content 1300mg/L, BOD/COD is 0.1, and emulsifying waste water enters follow-up processing flow then.
At first emulsifying waste water enters hydrolysis acidification pool, and hydrolysis acidification pool is a up flow anaerobic sludge blanket reactor, hydraulic detention time 20h, and sludge concentration is 19g/L, water outlet BOD/COD is 0.4.Water outlet enters the biofilm SBR reaction tank, and be 8h working time phase weekly, uses suspension ball filler, and the inoculation domestication can adapt to the microorganism of emulsifying waste water, and 1 month domestication time, domestication in 3 months is ripe, sludge concentration 5g/L, and BOD loading is 1.1kgBOD
5/ (m
3D), water outlet COD content is 510mg/L.Next step enters biological contact oxidation pond, and biological contact oxidation pond is the submergence aeration type, hydraulic detention time 20h, and sludge concentration is 20g/L, BOD loading is 2.0kgBOD
5/ (m
3D), dissolved oxygen content 4mg/L, water outlet COD content is 190mg/L.Final emulsion waste water enters artificial swamp, and artificial swamp is a subsurface flow wetland system, takes up an area of 20m
2, use pebble packing, wetland plants such as plantation Herba Poae Sphondylodis, emulsifying waste water discharges after flowing through artificial swamp, and water outlet COD content is 75mg/L.The processing of whole emulsifying waste water is 94% to the COD clearance in the emulsifying waste water.
More than the treatment process and the system of aluminum plate hot rolling emulsifying waste water provided by the present invention is described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (16)
1, a kind of treatment process of aluminum plate hot rolling emulsifying waste water is characterized in that, comprising:
A) acidifying that will be hydrolyzed through the emulsifying waste water that air supporting is handled;
B) emulsifying waste water after using SBR with acidication carries out degradation treatment;
C) will carry out bio-contact oxidation through the emulsifying waste water of SBR degradation treatment;
D) will purify by artificial wet land system through the emulsifying waste water that bio-contact oxidation is handled.
2, treatment process according to claim 1 is characterized in that, the hydraulic detention time of described acidication is 15h～25h.
3, treatment process according to claim 2 is characterized in that, the sludge concentration of described acidication is 15g/L～25g/L.
4, treatment process according to claim 1 is characterized in that, the microorganism with the enzyme system of decomposing the aluminum plate hot rolling emulsifying waste water that the microorganism of the active sludge that described SBR uses forms for inoculation, domestication back.
5, treatment process according to claim 4 is characterized in that, described SBR weekly working time phase be 4.8h～12h.
6, treatment process according to claim 5 is characterized in that, the sludge concentration of described SBR is 3g/L～5g/L.
7, treatment process according to claim 5 is characterized in that, the BOD loading of described SBR is 0.1kgBOD
5/ (m
3D)～1.3kgBOD
5/ (m
3D).
8, treatment process according to claim 1 is characterized in that, the hydraulic detention time of described bio-contact oxidation is 15h～22h.
9, treatment process according to claim 8 is characterized in that, the sludge concentration of described bio-contact oxidation is 10g/L～20g/L.
10, treatment process according to claim 9 is characterized in that, the BOD loading of described bio-contact oxidation is 1.8kgBOD
5/ (m
3D)～2.2kgBOD
5/ (m
3D).
11, treatment process according to claim 10 is characterized in that, the dissolved oxygen content of described bio-contact oxidation is 2.5mg/L～5mg/L.
12, a kind of treatment system of aluminum plate hot rolling emulsifying waste water, it is characterized in that, the hydrolysis acidification pool that comprises organic substance in the acidication waste water, organism in the waste water is carried out the sbr reactor pond that the first step is decomposed, the biological contact oxidation pond that organism in the waste water is carried out decomposing the second stage, the artificial swamp that the waste water of discharging is purified from biological contact oxidation pond.
13, treatment system according to claim 12 is characterized in that, described hydrolysis acidification pool is a up flow anaerobic sludge blanket reactor.
14, treatment system according to claim 12 is characterized in that, described sbr reactor pond is microbial film sbr reactor pond.
15, treatment system according to claim 14 is characterized in that, the filler in described sbr reactor pond is a suspension ball filler.
16, treatment system according to claim 12 is characterized in that, described artificial swamp is a subsurface flow wetland system.
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| CN2009101588109A CN101648767B (en) | 2009-07-06 | 2009-07-06 | Method and system for processing hot-rolling and emulsifying wastewater for aluminum plate |
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| CN102139969A (en) * | 2011-05-11 | 2011-08-03 | 上海膜达克环保工程有限公司 | Emulsified oil waste water treatment system and process |
| CN103880254A (en) * | 2014-04-09 | 2014-06-25 | 中持（北京）水务运营有限公司 | Emulsion wastewater treatment process |
| CN105036462A (en) * | 2015-06-30 | 2015-11-11 | 湖北山鼎环境科技股份有限公司 | MVR technology-based machining emulsified wastewater treatment method |
| CN105502855A (en) * | 2016-01-29 | 2016-04-20 | 安徽汇泽通环境技术有限公司 | Method for performing combined treatment on TAIC industrial wastewater through alkaline demulsification and hydrolysis-contact oxidation system |
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| DE10205456A1 (en) * | 2002-02-08 | 2003-08-21 | Lurgi Bamag Gmbh | Degreasing process, for metalliferous scale sediments accumulated from direct-cooling water in iron and steel hot rolling and casting operations, uses surfactant mixed into effluent clarifier to separate emulsified oil from solids |
| CN1292999C (en) * | 2005-04-14 | 2007-01-03 | 北京大学 | Efficient ecological waste water treating apparatus and method |
| CN2903032Y (en) * | 2005-12-27 | 2007-05-23 | 首钢总公司 | Hot rolling circulating waste water treating apparatus |
| CN200974792Y (en) * | 2006-06-21 | 2007-11-14 | 杨水斌 | Integral life sewage treating equipment |
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| CN102139969A (en) * | 2011-05-11 | 2011-08-03 | 上海膜达克环保工程有限公司 | Emulsified oil waste water treatment system and process |
| CN102139969B (en) * | 2011-05-11 | 2012-10-10 | 上海膜达克环保工程有限公司 | Emulsified oil waste water treatment system and process |
| CN103880254A (en) * | 2014-04-09 | 2014-06-25 | 中持（北京）水务运营有限公司 | Emulsion wastewater treatment process |
| CN103880254B (en) * | 2014-04-09 | 2016-01-06 | 中持水务股份有限公司 | A kind of emulsion waste water treatment process |
| CN105036462A (en) * | 2015-06-30 | 2015-11-11 | 湖北山鼎环境科技股份有限公司 | MVR technology-based machining emulsified wastewater treatment method |
| CN105502855A (en) * | 2016-01-29 | 2016-04-20 | 安徽汇泽通环境技术有限公司 | Method for performing combined treatment on TAIC industrial wastewater through alkaline demulsification and hydrolysis-contact oxidation system |
| CN105502855B (en) * | 2016-01-29 | 2018-04-17 | 安徽汇泽通环境技术有限公司 | A kind of alkalescence demulsification and the method for the system combined processing TAIC productions waste water of hydrolysis catalytic oxidation |
| CN105753800A (en) * | 2016-02-06 | 2016-07-13 | 江苏华星新材料科技股份有限公司 | Alkaline demulsification processing based recovery process of triallyl isocyanurate in wastewater for preparing triallyl isocyanurate |
| CN105753800B (en) * | 2016-02-06 | 2018-05-08 | 江苏华星新材料科技股份有限公司 | Triallyl isocyanurate recovery process in Triallyl isocyanurate preparation waste water based on alkalescence demulsification processing |
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