CN106145467A - A kind of device processed containing PVA high concentrated organic wastewater and technique - Google Patents

A kind of device processed containing PVA high concentrated organic wastewater and technique Download PDF

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Publication number
CN106145467A
CN106145467A CN201610742285.5A CN201610742285A CN106145467A CN 106145467 A CN106145467 A CN 106145467A CN 201610742285 A CN201610742285 A CN 201610742285A CN 106145467 A CN106145467 A CN 106145467A
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iron
carbon micro
tank
reaction tank
electrolysis reaction
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Inventor
胡家富
王轩
王芸
刘婷婷
王海珍
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NANJING BAIYUN CHEMICAL ENVIRONMENTAL MONITORING CO Ltd
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NANJING BAIYUN CHEMICAL ENVIRONMENTAL MONITORING CO Ltd
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Priority to CN201610742285.5A priority Critical patent/CN106145467A/en
Publication of CN106145467A publication Critical patent/CN106145467A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104Devices therefor; Their operating or servicing
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/463Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/46Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/467Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4676Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electroreduction
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281Installations for water purification using chemical agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/722Oxidation by peroxides
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00Use of specific compounds during water treatment
    • C02F2305/02Specific form of oxidant
    • C02F2305/026Fenton's reagent

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The invention discloses a kind of device processed containing PVA high concentrated organic wastewater, including the iron-carbon micro-electrolysis reaction tank communicated depended on into waste water order arrangement connection, sedimentation tank, Fenton reactor and clear water reserviors, water storage tank is connected with iron-carbon micro-electrolysis reaction tank by dosing pump, iron-carbon micro-electrolysis reaction tank is connected with aerating machine, ferrum carbon filler is had in described iron-carbon micro-electrolysis reaction tank underfill, it is provided with agitating device in described iron-carbon micro-electrolysis reaction tank top, Fenton reactor is connected with ferrous sulfate supply tank and hydrogen peroxide supply tank with hydrogen peroxide feed pipe by ferrous sulfate feed pipe respectively.The present invention first pass through iron-carbon micro-electrolysis reaction tank first carry out light electrolysis flocculation pretreatment after, further by polyacrylamide flocculation treatment, in waste water COD and absorption waste water scattered molecule is greatly reduced, metallic and organic macromolecule PVA etc., process cost-effective for Fenton in follow-up Fenton reactor, and finally realize discharged wastewater met the national standard.

Description

A kind of device processed containing PVA high concentrated organic wastewater and technique
Technical field
The present invention relates to belong to sewage treatment area, be specifically related to a kind of device processed containing PVA high concentrated organic wastewater And technique.
Background technology
The COD that high concentrated organic wastewater generally refers to be discharged by industries such as papermaking, leather and food is at more than 2000mg/L Waste water, containing the Organic substance such as substantial amounts of carbohydrate, fat, protein, cellulose in these waste water, if directly arranged Putting, can cause severe contamination, high concentrated organic wastewater is originated by its character can be divided into three major types: the height that (1) is readily biodegradable Concentration organic wastewater;(2) Organic substance can be degraded, but the waste water contained hazardous substance;(3) difficult for biological degradation is highly concentrated be harmful to Degree organic wastewater.
Polyvinyl alcohol (Polyvinyl alcohol is called for short PVA), is uniquely to have water in the high polymer having now been found that to live The organic high molecular compound of property.There is good chemistry, the physics such as the cohesiveness of strength, barrier properties for gases, wearability because of it Performance, by the sizing agent as textile industry, the coating of building trade, adhesive, the emulsifying agent of chemical industry, dispersant, doctor The lubricant of medicine industry, the binding agent of paper industry and the modifying agent of soil and extensively apply.But containing the industrial wastewater of PVA, Having COD value high, the features such as biodegradability is poor, if entering water body, because it has the water that bigger surface activity makes to receive Body produces a large amount of foams, is unfavorable for water reoxygenation, but also can promote that the migration of heavy metal in water body deposit discharges, and destroys water Body environment.The processing method of PVA waste water substantially can be divided into three classes, i.e. Physical, chemical method and bioanalysis.Physical becomes This is relatively low, but poor processing effect;Biochemical process treatment effect is preferable, but costly, consersion unit is required height, and reaction condition is severe Carve.The process of PVA waste water at present is still a difficult problem, and its treatment effect and cost are also not reaching to preferable standard.
For deficiencies of the prior art, it is an object of the invention to exist for current PVA wastewater processing technology Technical deficiency, it is provided that a kind of efficiently, low cost, Technology be simple, the PVA waste water treatment process of high treating effect.
Summary of the invention
The invention provides a kind of device processed containing PVA high concentrated organic wastewater, first pass through iron-carbon micro-electrolysis reaction tank First carry out
After light electrolysis flocculation pretreatment, further by polyacrylamide flocculation treatment, waste water COD and absorption waste water are greatly reduced In scattered molecule, metallic and organic macromolecule PVA etc., save into for Fenton process in follow-up Fenton reactor This, and finally realize discharged wastewater met the national standard.
In order to solve the problems referred to above, the technical solution adopted in the present invention is such, and a kind of process high concentration Han PVA has The device of machine waste water, including depending on into waste water order the iron-carbon micro-electrolysis reaction tank communicated of arrangement connection, sedimentation tank, Fenton's reaction Device and clear water reserviors, water storage tank is connected with iron-carbon micro-electrolysis reaction tank by dosing pump, iron-carbon micro-electrolysis reaction tank and aerating machine phase Even, there is ferrum carbon filler in described iron-carbon micro-electrolysis reaction tank underfill, in described iron-carbon micro-electrolysis reaction tank top Being provided with agitating device, described Fenton reactor is respectively by ferrous sulfate feed pipe and hydrogen peroxide feed pipe and ferrous sulfate Supply tank is connected with hydrogen peroxide supply tank.
Preferably, it is provided with agitator in described Fenton reactor.
Preferably, the cylinder of described Fenton reactor is made up of anticorrosion material.
The present invention also provides for a kind of technique utilizing said apparatus process to contain PVA high concentrated organic wastewater, it is characterised in that Comprise the steps:
1) add alkali to water storage tank, PVA high concentrated organic wastewater pH regulator will be contained to 8-10;
2) waste water after pH adjusted, is delivered to iron-carbon micro-electrolysis reaction tank through dosing pump, utilizes aerating machine that it is carried out aeration In the case of, start agitating device simultaneously, carry out iron-carbon micro-electrolysis process;
3) after iron-carbon micro-electrolysis processes, enter sedimentation tank, in sedimentation tank, add CPAM carry out flocculation sediment;
4) after flocculating sedimentation, the water outlet of sedimentation tank enters Fenton reactor, adds acid for adjusting pH to 3-5, add ferrous sulfate and Hydrogen peroxide, is sufficiently stirred for, and carries out Fenton's reaction;
5) precipitation filters, and regulation pH water outlet enters clear water reserviors.
Preferably, the COD containing PVA high concentrated organic wastewater described in step 1) is at more than 2000mg/L.
Electrolysis tech is a kind of ideal technology processing high concentrated organic wastewater at present, and also known as internal electrolysis, it is not In the case of energising, utilize the micro-electrolysis material self being filled in waste water to produce potential difference and waste water is carried out electrolysis process, with Reach the purpose of degradable organic pollutant.The micro-electrolysis material that the present invention uses is ferrum carbon, when, after system water flowing, equipment is interior can shape Become countless micro cell systems, constitute an electric field at its action space, during Fe/C galvanic element cell reaction, produce Fe2 + Ion and H free radical, they can be with the many component generation redox reaction in waste water, than if in damaged colored waste water The chromophoric group of coloring matter or auxochrome group, even chain rupture, reach the effect of degradation and decolorization;And Fe2 + Aoxidize life further Produce into Fe3+, hydrate has stronger absorption-flocculation activity, particularly under the conditions of pH value is for alkalescence after generate hydrogen-oxygen Changing ferrous and ferric hydroxide colloid flocculant, their absorbability is significantly larger than general medicament and hydrolyzes the hydrated ferric oxide. glue obtained Body, can adsorb scattered molecule, metallic and organic macromolecule in waste water in a large number, and this technique is for hard-degrading high concentrated The process of waste water can be greatly reduced COD and the colourity of waste water, improves the biodegradability of waste water;Flocculation is used after light electrolysis Method, adds PAMC (being called for short CPAM), flocculation macromolecule PVA further, reduces water outlet COD and colourity;Follow-up Use Fenton method, in acid condition, H2O2At Fe2+In the presence of generate the hydroxyl radical free radical OH of Strong oxdiative ability, and draw Send out other active oxygens more, to realize organic degraded.
Beneficial effect: the present invention first passes through iron-carbon micro-electrolysis reaction tank and first carries out light electrolysis flocculation pretreatment, this technique base Waste water is processed by the common effect in electrochemistry, oxidation-reduction, physical absorption and flocculation sediment, can be greatly reduced useless Scattered molecule in the COD of water and absorption waste water, metallic and organic macromolecule PVA etc.;Flocculated by light electrolysis After pretreatment, further by polyacrylamide flocculation treatment, flocculation macromolecule PVA further, reduces water outlet COD and colourity Process cost-effective for Fenton in follow-up Fenton reactor, and finally realize discharged wastewater met the national standard.This device and technique have Applied widely, high treating effect, with low cost, convenient operating maintenance, be not required to consume the advantages such as electric power resource.
Accompanying drawing explanation
Fig. 1 is the structural representation of this device.
Detailed description of the invention
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, should Embodiment is only used for explaining the present invention, is not intended that limiting the scope of the present invention.
Embodiment 1
Seeing Fig. 1, a kind of process device containing PVA high concentrated organic wastewater, including depending on communicating into waste water order arrangement connection Iron-carbon micro-electrolysis reaction tank 3, sedimentation tank 4, Fenton reactor 5 and clear water reserviors 6, water storage tank 1 is by dosing pump 2 and the micro-electricity of ferrum carbon Solving reaction tank 3 to be connected, iron-carbon micro-electrolysis reaction tank 3 is connected with aerating machine 12, fills out bottom described iron-carbon micro-electrolysis reaction tank It is filled with ferrum carbon filler 7, in described iron-carbon micro-electrolysis reaction tank top, is provided with agitating device 8, described Fenton reactor 5 Respectively by ferrous sulfate feed pipe and hydrogen peroxide feed pipe and ferrous sulfate supply tank 9 hydrogen peroxide supply tank 10.
Preferably, described Fenton reactor 5 is provided with agitator 11, and this cylinder is made up of anticorrosion material.
Embodiment 2
A kind of technique utilizing the device process implemented described in 1 to contain PVA high concentrated organic wastewater, comprises the steps:
1) add alkali to water storage tank 1, PVA high concentrated organic wastewater (COD is 2200mg/L) pH regulator will be contained to 8-10;
2) waste water after pH adjusted, is delivered to iron-carbon micro-electrolysis reaction tank 3 through dosing pump 2, utilizes aerating machine 12 to carry out it In the case of aeration, gas and water ratio for 6:1, starts agitating device 8 simultaneously, carries out iron-carbon micro-electrolysis and process 5-8h;
3) after iron-carbon micro-electrolysis processes, enter sedimentation tank 4, in sedimentation tank 4, add CPAM carry out flocculation sediment;
4) after flocculating sedimentation, the water outlet of sedimentation tank 4 enters Fenton reactor 5, and addition acid for adjusting pH, to 3-5, adds ferrous sulfate And hydrogen peroxide, it is sufficiently stirred for, carries out Fenton's reaction;
5) precipitation filters, and regulation pH water outlet enters clear water reserviors 6.
After testing, water outlet COD is 45mg/L, reaches discharge standard requirement.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.

Claims (5)

1. the device processed containing PVA high concentrated organic wastewater, it is characterised in that include depending on into waste water order arrangement connection Iron-carbon micro-electrolysis reaction tank, sedimentation tank, Fenton reactor and the clear water reserviors communicated, water storage tank passes through dosing pump and iron-carbon micro-electrolysis Reaction tank is connected, and iron-carbon micro-electrolysis reaction tank is connected with aerating machine, has ferrum in described iron-carbon micro-electrolysis reaction tank underfill Carbon filler, is provided with agitating device in described iron-carbon micro-electrolysis reaction tank top, and described Fenton reactor passes through respectively Ferrous sulfate feed pipe is connected with ferrous sulfate supply tank and hydrogen peroxide supply tank with hydrogen peroxide feed pipe.
A kind of device processed containing PVA high concentrated organic wastewater the most according to claim 1, it is characterised in that described Agitator it is provided with in Fenton reactor.
A kind of device processed containing PVA high concentrated organic wastewater the most according to claim 1, it is characterised in that described The cylinder of Fenton reactor is made up of anticorrosion material.
4. utilizing the device described in claim 1-3 any claim to process the technique containing PVA high concentrated organic wastewater, it is special Levy and be, comprise the steps:
1) add alkali to water storage tank, PVA high concentrated organic wastewater pH regulator will be contained to 8-10;
2) waste water after pH adjusted, is delivered to iron-carbon micro-electrolysis reaction tank through dosing pump, utilizes aerating machine that it is carried out aeration In the case of, start agitating device simultaneously, carry out iron-carbon micro-electrolysis process;
3) after iron-carbon micro-electrolysis processes, enter sedimentation tank, in sedimentation tank, add CPAM carry out flocculation sediment;
4) after flocculating sedimentation, the water outlet of sedimentation tank enters Fenton reactor, adds acid for adjusting pH to 3-5, add ferrous sulfate and Hydrogen peroxide, is sufficiently stirred for, and carries out Fenton's reaction;
5) precipitation filters, and regulation pH water outlet enters clear water reserviors.
Technique the most according to claim 4, it is characterised in that described in step 1) containing PVA high concentrated organic wastewater COD is at more than 2000mg/L.
CN201610742285.5A 2016-08-26 2016-08-26 A kind of device processed containing PVA high concentrated organic wastewater and technique Pending CN106145467A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107055716A (en) * 2016-12-15 2017-08-18 江门市海达水净化工程有限公司 A kind of high-colour intensity wastewater removes colorimetric device
CN107434281A (en) * 2017-07-26 2017-12-05 北京科技大学 A kind of sterilization method using waste heat collaboration galvanic cell activation persulfate
CN107662989A (en) * 2017-11-07 2018-02-06 安徽国祯环境修复股份有限公司 A kind of groundwater remediation system by heavy metal and Organic Pollution
CN108409022A (en) * 2018-05-16 2018-08-17 泊头市大华环保工程有限公司 Desized wastewater processing method containing PVA and processing system
CN108911046A (en) * 2018-06-29 2018-11-30 北京科技大学 A kind of sterilization method of the ferrous activation persulfate of three-diemsnional electrode primary battery collaboration
CN109626669A (en) * 2018-12-11 2019-04-16 北京科技大学 A kind of deep treatment method of papermaking bio-chemical effluent
CN110921954A (en) * 2019-12-10 2020-03-27 西安华盛坤泰能源环保科技有限公司 Method and system for treating oilfield wastewater by combining iron-carbon micro-electrolysis and Fenton oxidation
CN111099759A (en) * 2018-10-25 2020-05-05 中国石油化工股份有限公司 Polyvinyl alcohol wastewater treating agent and method for treating wastewater by using same
CN111099758A (en) * 2018-10-25 2020-05-05 中国石油化工股份有限公司 Polyvinyl alcohol wastewater treatment system and method
CN111908722A (en) * 2020-08-15 2020-11-10 四川大学 Integrated toxic refractory wastewater treatment device and treatment method

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CN1944281A (en) * 2005-10-03 2007-04-11 刘德沛 Method for treating polyvinyl alcohol waste water by catalytic oxidizing process
CN101948200A (en) * 2010-09-10 2011-01-19 昆明理工大学 Micro-electrolysis flocculation method for treating acid waste water containing heavy metals in mine
CN102101733A (en) * 2011-01-12 2011-06-22 中国科学院生态环境研究中心 Method for treating electroplating comprehensive wastewater by scrap iron electrolysis and electrochemical technology
CN205088058U (en) * 2015-07-07 2016-03-16 深圳市华尔信环保科技有限公司 Little electrolysis processing system of high concentration organic waste water
CN105692967A (en) * 2014-11-24 2016-06-22 中国石油化工股份有限公司 PVA production apparatus wastewater treatment method
CN105776681A (en) * 2016-04-13 2016-07-20 东莞市联洲知识产权运营管理有限公司 Efficient and environment-friendly medical wastewater treatment method
CN205999191U (en) * 2016-08-26 2017-03-08 南京白云化工环境监测有限公司 A kind of device processing containing PVA high concentrated organic wastewater

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1944281A (en) * 2005-10-03 2007-04-11 刘德沛 Method for treating polyvinyl alcohol waste water by catalytic oxidizing process
CN101948200A (en) * 2010-09-10 2011-01-19 昆明理工大学 Micro-electrolysis flocculation method for treating acid waste water containing heavy metals in mine
CN102101733A (en) * 2011-01-12 2011-06-22 中国科学院生态环境研究中心 Method for treating electroplating comprehensive wastewater by scrap iron electrolysis and electrochemical technology
CN105692967A (en) * 2014-11-24 2016-06-22 中国石油化工股份有限公司 PVA production apparatus wastewater treatment method
CN205088058U (en) * 2015-07-07 2016-03-16 深圳市华尔信环保科技有限公司 Little electrolysis processing system of high concentration organic waste water
CN105776681A (en) * 2016-04-13 2016-07-20 东莞市联洲知识产权运营管理有限公司 Efficient and environment-friendly medical wastewater treatment method
CN205999191U (en) * 2016-08-26 2017-03-08 南京白云化工环境监测有限公司 A kind of device processing containing PVA high concentrated organic wastewater

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107055716A (en) * 2016-12-15 2017-08-18 江门市海达水净化工程有限公司 A kind of high-colour intensity wastewater removes colorimetric device
CN107434281A (en) * 2017-07-26 2017-12-05 北京科技大学 A kind of sterilization method using waste heat collaboration galvanic cell activation persulfate
CN107662989A (en) * 2017-11-07 2018-02-06 安徽国祯环境修复股份有限公司 A kind of groundwater remediation system by heavy metal and Organic Pollution
CN108409022A (en) * 2018-05-16 2018-08-17 泊头市大华环保工程有限公司 Desized wastewater processing method containing PVA and processing system
CN108911046A (en) * 2018-06-29 2018-11-30 北京科技大学 A kind of sterilization method of the ferrous activation persulfate of three-diemsnional electrode primary battery collaboration
CN111099759A (en) * 2018-10-25 2020-05-05 中国石油化工股份有限公司 Polyvinyl alcohol wastewater treating agent and method for treating wastewater by using same
CN111099758A (en) * 2018-10-25 2020-05-05 中国石油化工股份有限公司 Polyvinyl alcohol wastewater treatment system and method
CN109626669A (en) * 2018-12-11 2019-04-16 北京科技大学 A kind of deep treatment method of papermaking bio-chemical effluent
CN110921954A (en) * 2019-12-10 2020-03-27 西安华盛坤泰能源环保科技有限公司 Method and system for treating oilfield wastewater by combining iron-carbon micro-electrolysis and Fenton oxidation
CN111908722A (en) * 2020-08-15 2020-11-10 四川大学 Integrated toxic refractory wastewater treatment device and treatment method
CN111908722B (en) * 2020-08-15 2021-11-30 四川大学 Integrated toxic refractory wastewater treatment device and treatment method

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Application publication date: 20161123