CN108178252B - Four-electrode double-electrolysis system and method for treating refractory organic wastewater by adopting same - Google Patents
Four-electrode double-electrolysis system and method for treating refractory organic wastewater by adopting same Download PDFInfo
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- 239000002351 wastewater Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 31
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
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- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 10
- 239000002957 persistent organic pollutant Substances 0.000 claims abstract description 6
- 239000011810 insulating material Substances 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 3
- 230000000593 degrading effect Effects 0.000 description 3
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- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- -1 polyhalide Chemical compound 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- WXNZTHHGJRFXKQ-UHFFFAOYSA-N 4-chlorophenol Chemical compound OC1=CC=C(Cl)C=C1 WXNZTHHGJRFXKQ-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- 238000004458 analytical method Methods 0.000 description 1
- GVFOJDIFWSDNOY-UHFFFAOYSA-N antimony tin Chemical compound [Sn].[Sb] GVFOJDIFWSDNOY-UHFFFAOYSA-N 0.000 description 1
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- 150000004045 organic chlorine compounds Chemical class 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4676—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electroreduction
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/36—Organic compounds containing halogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a method for treating organic wastewater difficult to degrade by a four-electrode double-electrolysis system, which is characterized by comprising a first electrolysis system and a second electrolysis system, wherein the first electrolysis system is a piezoelectric system, an anode is a titanium-based lead dioxide electrode and a titanium-based noble metal oxide coating electrode, and a cathode is a titanium, copper or lead alloy electrode; the anode and the cathode of the second electrolysis system are both composite electrodes of metal outer lining insulating materials, and the double electrolysis systems alternately or simultaneously electrolyze the organic wastewater difficult to degrade and cooperatively degrade organic pollutants. The double-electrolysis system alternately or simultaneously electrolyzes and cooperatively degrades the difficult-to-degrade organic wastewater, can improve the electrochemical oxidative degradation efficiency of the difficult-to-degrade wastewater and improve the biochemical characteristics of the difficult-to-degrade wastewater.
Description
Field of the art
The invention relates to a four-electrode double-electrolysis system and a method for treating organic wastewater difficult to degrade by adopting the system, which are technologies for degrading organic wastewater by adopting ultra-high voltage pulse electrolysis and electrochemical advanced oxidation, and belong to the field of organic wastewater treatment.
(II) background art
Along with the rapid development of the economy in China, industrial enterprises are more and more, and particularly, industrial organic wastewater discharged by industries such as fine chemical industry, medicines, pesticides and the like is large in BOD and COD, and the discharged wastewater is complex in type and contains a large amount of organic pollutants which are difficult to be biochemically degraded. Organic wastewater such as nitrobenzene, polyhalide, phenol and the like is difficult to biochemically treat and has toxicity. The method for treating the refractory industrial organic wastewater mainly comprises a biological method, a physical and chemical method, an oxidation method and the like. The biological method is an organic wastewater treatment method widely applied at present, but when the wastewater contains toxic substances or biodegradable organic matters with high concentration, the treatment effect of the biological method is poor and even the biological method cannot be treated. The physical and chemical method separates pollutants from the wastewater through a physical and chemical process to achieve the aim of removing the pollutants, so the physical and chemical method is a wastewater treatment method aiming at recycling. It mainly includes adsorption method, extraction method and membrane treatment technique, etc.. The oxidation method mainly uses the strong oxidizing property of some oxidizing agents to oxidize and remove organic pollutants in water. Mainly comprises a chemical oxidation method, a supercritical water oxidation method, a wet oxidation method, a photocatalytic oxidation method, an ultrasonic oxidation method, an electrolysis-Fenton method, an electrochemical oxidation method and the like. The electrochemical oxidation method adopts an electrolysis method, utilizes the high potential and catalytic activity of an anode to directly degrade pollutants in water, or utilizes a strong oxidant such as generated hydroxyl free radicals to degrade toxic pollutants in water, and is an environment-friendly pollutant degradation technology. The electrochemical oxidation method has the advantages of no need of adding oxidant and less secondary pollution; the reaction conditions are mild, the reaction is generally carried out at normal temperature and normal pressure, and the reaction has the characteristics of air floatation, flocculation, sterilization and the like, and in recent years, the reaction has been applied to the fields of garbage leachate treatment, tanning wastewater, printing and dyeing wastewater, oil refining wastewater, papermaking wastewater and the like.
The electrochemical oxidation generally adopts electrode materials with high oxygen evolution, such as metal electrodes, graphite electrodes, titanium-based manganese dioxide electrodes, titanium-based lead dioxide electrodes, tin-antimony coated titanium electrodes and the like, and organic matters are directly oxidized on the electrodes, or chlorine evolution or material precipitation can be carried outAnd the oxygen evolution active electrode is used for oxidizing and degrading pollutants by generating an OH free radical strong oxidant through electrocatalytic oxidation. For example, research on electrolytic degradation of various dye waste water by taking Fe as anode and stainless steel as cathode shows that most dye solutions can be effectively decolorized by electrolytic oxidation and have SO 3 - 、COO - 、SO 2 NH 2 Hydrophilic groups such as OH and the like and dyes containing azo bonds are easy to decompose, and the decoloring rate is more than 90 percent; and has C=O, -NH 2 Dyes with hydrophobic groups such as aromatic groups are easily adsorbed and flocculated. However, some organic wastewater of organic chlorine compounds, polycyclic nitro compounds and the like is degraded in the presence of alkaline or sodium chloride-free medium, and the degradation effect is poor. The voltage of the electrolytic reaction tank is generally 1-30V, and the high anode potential is favorable for mineralizing pollutants, but the high anode potential is easy to cause anode oxygen evolution, so that the electrooxidative degradation efficiency is reduced. Meanwhile, the degradation efficiency of partial refractory organic matters cannot be further improved. The high-voltage pulse electric field is a non-heat treatment technology, has the characteristics of short treatment time, small temperature rise, low energy consumption, obvious sterilization effect and the like, and becomes one of hot spots in research in the field of sterilization and disinfection at home and abroad in recent years. After treatment of E.coli in skim milk with 50 pulses of electric field at 40kV/cm, 99% of E.coli was inactivated. When an external electric field is applied to the cells, the electric field increases the potential difference between the inside and the outside of the membrane, at the same time, the permeability of the cell membrane increases, and when the electric field strength increases to a critical value, the permeability of the cell membrane increases rapidly, and a plurality of pores appear on the membrane, so that the strength of the membrane decreases. There are also a large number of bacteria and micelles in the organic wastewater, and the cell structure can be destroyed by using a high electric field, and high vibration energy is provided, which is beneficial to improving the efficiency of electrochemical oxidative degradation.
The high-voltage pulse electric field applied to the food non-thermal sterilization is applied to the electrolytic method for degrading pollutants, the electrolytic tank is changed into a four-electrode system, and in the electrochemical oxidative degradation process, the high-voltage electric field is added to form a four-electrode double-electrolytic system for treating the pollutants difficult to degrade, so that the efficiency of electrochemical oxidative degradation of the pollutants by using the phenolic wastewater, chlorinated hydrocarbon and amine-containing organic wastewater can be effectively improved.
(III) summary of the invention
The invention aims to provide a method for treating organic wastewater difficult to degrade by a four-electrode double-electrolysis system, which is applied to the treatment of pollutants difficult to degrade in industrial wastewater and improves the efficiency of electrochemical oxidative degradation of pollutants in organic wastewater containing phenol wastewater, chlorinated hydrocarbon, amine and the like.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the four-electrode double-electrolysis system is characterized by comprising a first electrolysis system and a second electrolysis system, wherein the first electrolysis system is a piezoelectric system, the anode is a titanium-based lead dioxide electrode and a titanium-based noble metal oxide coating electrode, and the cathode is a titanium, copper and lead alloy electrode; the anode and the cathode of the second electrolysis system are both composite electrodes of metal outer lining insulating materials, and the double electrolysis systems alternately or simultaneously electrolyze the organic wastewater difficult to degrade and cooperatively degrade organic pollutants. The double electrolysis system alternately or simultaneously electrolyzes the organic wastewater difficult to degrade and cooperatively degrades the organic pollutants.
The first electrolysis system adopts a cell electrolysis voltage of 0-30V and a current density of 10-1000A/m 2 。
The second electrolytic system is characterized in that the electrolytic voltage of a unit cell of 0KV-60V is used, and the current density is 0-0.05A/m 2 。
The method for treating the organic wastewater difficult to degrade by adopting the four-electrode double-electrolysis system can be that the first electrolysis system is used for electrolyzing the organic wastewater with constant current in a continuous or intermittent method, or the second electrolysis system is used for electrolyzing the organic wastewater with constant voltage pulse in a continuous or intermittent method
Preferably, the first electrolysis system is subjected to constant current continuous pulse electrolysis and the second electrolysis system is subjected to continuous pulse electrolysis, and the first electrolysis system and the second electrolysis system are subjected to continuous pulse electrolysis at the same time; or the alternating electrolysis time ratio of constant current of the first electrolysis system and high-voltage pulse electrolysis of the second electrolysis system for treating pollutants by the intermittent electrolysis method is 1-10:1.
Compared with an electrochemical oxidation method, the method for treating the organic wastewater difficult to degrade has the advantages of simple four-electrode system device and convenient maintenance; the high-voltage electric field has synergistic effect on electrochemical oxidative degradation of difficult-degradation organic matters such as chlorinated hydrocarbon, nitro compound, amine and the like, can effectively improve the degradation efficiency of the difficult-degradation organic matters by 5-50% through electrochemical oxidation or reduction, and improves the biodegradability and mineral degree of organic wastewater.
(IV) description of the drawings
FIG. 1 is a schematic diagram of a four-electrode dual electrolysis system according to the present invention.
Fig. 2 is a schematic diagram of the structure of a conductive metal plate and an anode-overcoat insulating layer.
Fig. 3 is a schematic structural view of a high voltage pulse metal plate according to the present invention.
Fig. 4 is a schematic view of the structure of the present invention in which a high voltage pulse electrode pad C is placed on the outside of an electrolytic cell.
Wherein, the device comprises a 1-electrolytic tank (insulating materials, PP, PVC, etc.), a 2-electrooxidation anode, a 3-electrooxidation cathode, a 4-high voltage pulse anode, a 5-high voltage pulse cathode, a 6-wastewater inlet, a 7-wastewater outlet, 8, 9-high voltage pulse metal polar plates, a 10-electrolytic tank wall plate (insulating materials, PP, PVC, etc.), an A-conductive metal polar plate, a B-anode outer lining insulating layer and a C-high voltage pulse metal polar plate.
(fifth) detailed description of the invention
In order to make the objects and technical aspects and advantages of the present invention more apparent, the present invention is described with reference to the following examples, but the present invention is not limited to these examples.
Example 1
Reference is made to fig. 1-3. As shown in FIG. 1, the material of the electrolytic tank 1 is PP, the thickness is 15cm, the size is 15cm long, the width is 10cm, and the height is 15cm. The electrooxidation anode 2 is a titanium-based lead dioxide electrode, the electrooxidation cathode 3 is a stainless steel electrode, and the sizes of the electrooxidation anode and the electrooxidation cathode are 8cm and 15cm respectively. The conductive metal polar plate in the high-voltage pulse anode 4 is a copper plate, the outer lining insulating layer B is PP material, and the thickness is 1cm; the conductive metal polar plate in the high-voltage pulse cathode 5 is a stainless steel plate, the outer lining insulating layer B is a PP material, and the thickness is 1cm; the high voltage pulse anode and cathode dimensions were 8cm x 15cm. The high-voltage pulse anode and the cathode are arranged on two sides of the length side of the rectangular electrolytic tank, and the electro-oxidation anode and the cathode are arranged on two sides of the width side to form a four-electrode system. The wastewater from the preparation of para-aminophenol contains 12 percent para-aminophenolg/L, is input from 6 by a metering pump, overflows from a waste water outlet 7, and keeps the flow rate of waste water to be 0 or 100ml/L. At 200A/m 2 Constant current electrolysis of the current density of (2). Meanwhile, a high-voltage pulse electrode is added with 15KV pulse voltage, and the frequency is 50Hz. The waste water overflowed from the outlet 7 was taken out, and the COD removal rate was analyzed to be 98.9%.
Example 2
Refer to fig. 4. The high voltage pulse electrode plate 8 and the electrode plate 9 are arranged outside the electrolytic cell and are closely attached to the wall plates 10 on the two sides of the electrolytic cell according to the method of the embodiment 1. The waste water from the preparation of p-chlorophenol, which contains 10g/L of p-aminophenol, is fed from 6 by a metering pump and overflowed from a waste water outlet 7, and the flow rate of the waste water is maintained at 0 or 100ml/L. At 200A/m 2 Constant current electrolysis of the current density of (2). Meanwhile, 20KV pulse voltage is added to the high-voltage pulse electrode, and the frequency is 50Hz. The waste water overflowed from the outlet 7 was taken out, and the COD removal rate was 97.4% by analysis.
Examples 3 to 9
The device components refer to fig. 1. And (3) adjusting the thickness of an insulating layer of the outer lining of the high-voltage pulse electrode, and changing the current values of high-voltage pulse voltage and low-voltage electrolysis. The non-aqueous p-aminophenol was degraded electrochemically as in example 1. The experimental results are shown in table 1.
TABLE 1 electrode systems of different insulating layer thicknesses for sludge treatment
Claims (2)
1. The four-electrode double-electrolysis system is characterized by comprising a first electrolysis system and a second electrolysis system, wherein the first electrolysis system is a piezoelectric system, an anode is a titanium-based lead dioxide electrode and a titanium-based noble metal oxide coating electrode, and a cathode is a titanium, copper and lead alloy electrode; the anode and the cathode of the second electrolytic system are composite electrodes of metal outer lining insulating materials, and the double electrolytic systems simultaneously electrolyze organic wastewater difficult to degrade and cooperatively degrade organic pollutants, wherein an included angle of 90 degrees is formed between the direction of the cathode and the anode of the first electrolytic system and the direction of the cathode and the anode of the second electrolytic system;
the first electrolysis system adopts a unit cell electrolysis voltage of 0-30V and a current density of 10-1000A/m 2 ；
The second electrolysis system adopts a cell electrolysis pulse voltage of 0.5KV-100KV and a current density of 0A/m 2 。
2. A method for treating organic wastewater difficult to degrade by adopting a four-electrode double-electrolysis system is characterized in that continuous pulse electrolysis is carried out by adopting a first electrolysis system constant current and a second electrolysis system in the four-electrode double-electrolysis system according to claim 1, and the first electrolysis system constant current and the second electrolysis system are simultaneously electrolyzed.
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| CN112830555A (en) * | 2021-01-05 | 2021-05-25 | 北京化工大学 | Double-potential anode electrolysis device and method |
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| CN113860440B (en) * | 2021-12-01 | 2022-03-25 | 天津市环境保护技术开发中心设计所有限责任公司 | High-low pressure superposition type internal circulation electro-catalysis wastewater treatment device and method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050008892A (en) * | 2003-07-14 | 2005-01-24 | 배석림 | Water Treatment Device Using High Voltage Electro-pulse |
| JP2005058887A (en) * | 2003-08-11 | 2005-03-10 | Mitsubishi Heavy Ind Ltd | Waste water treatment apparatus using high-voltage pulse |
| CN101532146A (en) * | 2009-03-03 | 2009-09-16 | 郭建国 | Constant current electrolytic cell in stable strong electric field and electrolysis device thereof |
| CN101540409A (en) * | 2009-04-22 | 2009-09-23 | 郭建国 | Fuel battery unit with electric field-membrane electrode combined structure and a reversible regenerable oxyhydrogen electrolysis unit thereof |
| CN102583656A (en) * | 2012-03-15 | 2012-07-18 | 大连海事大学 | Dielectric barrier discharge water treatment device |
| CN205241297U (en) * | 2015-12-08 | 2016-05-18 | 江苏润地环保有限公司 | Electrode exchanges formula electricity and congeals water treatment ware |
| CN106746466A (en) * | 2017-01-19 | 2017-05-31 | 浙江工业大学 | A kind of system of electrolytic electro-dialysis air pressure press filtration Combined Treatment sludge dewatering |
| CN106927544A (en) * | 2017-05-02 | 2017-07-07 | 唐山永合水处理剂有限公司 | The method of electrocatalytic oxidation water treatment facilities and its treatment organic wastewater with difficult degradation thereby |
| CN107055984A (en) * | 2016-12-01 | 2017-08-18 | 浙江工业大学 | A kind of method that high-voltage pulse electrolytic tension filter method deep dehydration handles sludge |
| CN208104010U (en) * | 2018-01-22 | 2018-11-16 | 浙江工业大学 | A kind of double electrolysis systems of four electrodes |
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| CA2590481A1 (en) * | 2007-05-30 | 2008-11-30 | Kuzo Holding Inc. | Multi-pulse protocol for use with a dual voltage electrolysis apparatus |
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050008892A (en) * | 2003-07-14 | 2005-01-24 | 배석림 | Water Treatment Device Using High Voltage Electro-pulse |
| JP2005058887A (en) * | 2003-08-11 | 2005-03-10 | Mitsubishi Heavy Ind Ltd | Waste water treatment apparatus using high-voltage pulse |
| CN101532146A (en) * | 2009-03-03 | 2009-09-16 | 郭建国 | Constant current electrolytic cell in stable strong electric field and electrolysis device thereof |
| CN101540409A (en) * | 2009-04-22 | 2009-09-23 | 郭建国 | Fuel battery unit with electric field-membrane electrode combined structure and a reversible regenerable oxyhydrogen electrolysis unit thereof |
| CN102583656A (en) * | 2012-03-15 | 2012-07-18 | 大连海事大学 | Dielectric barrier discharge water treatment device |
| CN205241297U (en) * | 2015-12-08 | 2016-05-18 | 江苏润地环保有限公司 | Electrode exchanges formula electricity and congeals water treatment ware |
| CN107055984A (en) * | 2016-12-01 | 2017-08-18 | 浙江工业大学 | A kind of method that high-voltage pulse electrolytic tension filter method deep dehydration handles sludge |
| CN106746466A (en) * | 2017-01-19 | 2017-05-31 | 浙江工业大学 | A kind of system of electrolytic electro-dialysis air pressure press filtration Combined Treatment sludge dewatering |
| CN106927544A (en) * | 2017-05-02 | 2017-07-07 | 唐山永合水处理剂有限公司 | The method of electrocatalytic oxidation water treatment facilities and its treatment organic wastewater with difficult degradation thereby |
| CN208104010U (en) * | 2018-01-22 | 2018-11-16 | 浙江工业大学 | A kind of double electrolysis systems of four electrodes |
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