CN110818028A - Three-dimensional electrolytic catalytic oxidation device - Google Patents
Three-dimensional electrolytic catalytic oxidation device Download PDFInfo
- Publication number
- CN110818028A CN110818028A CN201810895165.8A CN201810895165A CN110818028A CN 110818028 A CN110818028 A CN 110818028A CN 201810895165 A CN201810895165 A CN 201810895165A CN 110818028 A CN110818028 A CN 110818028A
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- electrode plate
- electrolytic cell
- catalytic oxidation
- dimensional
- bipolar
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- 230000003647 oxidation Effects 0.000 title claims abstract description 22
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 22
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 18
- 239000000945 filler Substances 0.000 claims abstract description 11
- 239000011949 solid catalyst Substances 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 9
- 230000001590 oxidative effect Effects 0.000 claims abstract description 5
- 239000007800 oxidant agent Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 3
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 4
- 239000010802 sludge Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 239000012028 Fenton's reagent Substances 0.000 description 5
- 239000005416 organic matter Substances 0.000 description 3
- 230000005518 electrochemistry Effects 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- -1 hydroxide ions Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- C02F1/46104—Devices therefor; Their operating or servicing
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F2001/46133—Electrodes characterised by the material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4616—Power supply
- C02F2201/4617—DC only
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/14—NH3-N
Abstract
The invention discloses a three-dimensional electrolytic catalytic oxidation device, wherein a multi-layer bipolar electrode plate divides a multi-electrode type electrolytic cell into a plurality of independent electrolytic cell spaces in the multi-electrode type electrolytic cell, a filler of a solid catalyst is filled in each independent electrolytic cell space, an inert oxidant coating is coated on one surface of an anode electrode plate, and the two ends of the multi-electrode type electrolytic cell are connected with the anode and the cathode of the electrode plate through connecting leads by an electric control device. According to the three-dimensional electrolytic catalytic oxidation device provided by the invention, new sludge cannot be added in the process of oxidizing various characteristic pollutants in sewage, the requirement on water quality is basically absent in the sewage treatment process, the actual sewage treatment effect is obvious, the limited treatment rate of COD is 45% -90%, the removal of low-concentration ammonia nitrogen has an incomparable effect with other processes, and the removal of inorganic ammonia nitrogen can reach 100%.
Description
Technical Field
The invention belongs to the technical field of sewage pretreatment, and particularly relates to a three-dimensional electrolytic catalytic oxidation device.
Background
The application of electrochemistry in the aspect of sewage treatment is nearly perfect, but the common electrolytic catalytic oxidation technology is that electrochemistry and a Fenton reagent are combined for use, so that the aim is to exert the synergistic effect of the electrochemical Fenton reagent and to exert the maximum oxidation efficiency of hydroxide ions, the oxidation effect is required to be carried out under an acidic condition, and after the sewage treatment is finished, alkaline substances are required to be used for neutralization. Because of the Fenton reagent, a certain amount of ferrous sludge is generated in the sewage neutralization process, and a part of waste residues are increased, which is the defect that the electrolysis catalytic oxidation technology and the Fenton reagent are combined for use.
Technical scheme
The invention mainly solves the technical problem of providing a three-dimensional electrolytic catalytic oxidation device, which comprises a bipolar electrolytic cell and is characterized in that: the wall of the two sides of the bipolar type electrolytic cell is respectively provided with a cathode electrode plate and an anode electrode plate, the bipolar type electrolytic cell is divided into a plurality of independent electrolytic cell spaces by a plurality of layers of bipolar electrode plates in the bipolar type electrolytic cell, the plurality of layers of bipolar electrode plates are arranged in a mode that the cathode electrode plates and the anode electrode plates are arranged at intervals, each independent electrolytic cell space is filled with a filler of a solid catalyst, one surface of each anode electrode plate is coated with an inert oxidant coating, and the two ends of the bipolar type electrolytic cell are connected with the positive and negative electrodes of the electrode plates through connecting leads by an electric control device.
Optionally, the multi-layer bipolar electrode plate is a graphite electrode plate or a stainless steel electrode plate.
Optionally, one surface of the anode electrode plate is an electrode plate made of a titanium alloy coating.
Optionally, the cathode electrode plate is a metal plate coating of an iron-nickel alloy.
Optionally, the electric control device is an electric control cabinet.
Optionally, the filler of the solid catalyst is a solid catalyst filler with semiconductor characteristics.
The invention has the beneficial effects that:
the invention provides a three-dimensional electrolytic catalytic oxidation device, which optimizes the existing electrocatalytic oxidation process, wherein the optimization aims to fully play the role of an electric field under the condition of not using a Fenton reagent, a three-dimensional electrocatalytic oxidation technology is adopted, a filler adopts a solid catalyst with a common catalytic effect, and the water environment basically has no loss of the catalyst, so that various characteristic pollutants in sewage cannot increase new sludge in the oxidation process, the requirement on water quality in the sewage treatment process is basically absent, the actual sewage treatment effect is obvious, the limited treatment rate of COD is 45-90 percent or even higher, the removal of low-concentration ammonia nitrogen has the effect which cannot be compared with other processes, and the removal of inorganic ammonia nitrogen can reach 100 percent.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional electrolytic catalytic oxidation apparatus according to the present invention.
Examples
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention, and to clearly and unequivocally define the scope of the present invention.
As shown in figure 1, the three-dimensional electrolytic catalytic oxidation device comprises a bipolar type electrolytic tank 1, wherein a cathode electrode plate and an anode electrode plate 2 are respectively arranged on the walls of two sides of the bipolar type electrolytic tank 1, the bipolar type electrolytic tank 1 is divided into a plurality of independent bipolar type electrolytic tank spaces by a plurality of layers of bipolar electrode plates in the bipolar type electrolytic tank, and the electrodes at two ends of the bipolar type electrolytic tank 1 are respectively connected with the positive electrode and the negative electrode of a direct current power supply of an electric control device 5 (preferably adopting an electric control cabinet) to form an anode or a cathode. When current flows through the bipolar type electrolytic cell 1 through the electrodes connected in series, one surface of each electrode in the middle is an anode, and the other surface is a cathode, when the total area of the electrodes is the same, the bipolar type electrolysis is carried out, the current of the bipolar type electrolytic cell 1 is smaller, the voltage is higher, and the investment of a required direct current power supply is less than that of a monopolar type. The multilayer bipolar electrode plate is preferably a graphite electrode plate or a stainless steel electrode plate, the multilayer bipolar electrode plate is arranged in a mode that a cathode electrode plate 2 and an anode electrode plate 3 are arranged at intervals, the surface of the anode electrode plate 3 is preferably coated by a titanium alloy material, the cathode electrode plate 2 is preferably coated by a metal plate coating of an iron-nickel alloy, a filler 4 filled with a solid catalyst is filled in the space of each independent bipolar type electrolytic cell 1, the filler 4 of the solid catalyst can be a solid catalyst filler with semiconductor characteristics, an inert oxidant coating is coated on one surface of the anode electrode plate 3, and the two ends of the bipolar type electrolytic cell 1 are connected with the positive and negative electrodes of the electrode plate through an electric control device 5 and a connecting lead 6.
In the electrochemical oxidation, a solution or suspension of organic matter is placed in a multi-electrode type electrolytic tank 1, and through direct current, electrons are taken from an anode electrode plate 3 to oxidize the organic matter, or low-valence metal is oxidized into high-valence metal ions first, and then the high-valence metal ions oxidize the organic matter.
The sequence of the above embodiments is only for convenience of description and does not represent the advantages and disadvantages of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A three-dimensional electrolytic catalytic oxidation device adopts a bipolar type electrolytic cell, and is characterized in that: the wall of the two sides of the bipolar type electrolytic cell is respectively provided with a cathode electrode plate and an anode electrode plate, the bipolar type electrolytic cell is divided into a plurality of independent electrolytic cell spaces by a plurality of layers of bipolar electrode plates in the bipolar type electrolytic cell, the plurality of layers of bipolar electrode plates are arranged in a mode that the cathode electrode plates and the anode electrode plates are arranged at intervals, each independent electrolytic cell space is filled with a filler of a solid catalyst, one surface of each anode electrode plate is coated with an inert oxidant coating, and the two ends of the bipolar type electrolytic cell are connected with the positive and negative electrodes of the electrode plates through connecting leads by an electric control device.
2. The three-dimensional electrolytic catalytic oxidation apparatus according to claim 1, wherein: the multi-layer bipolar electrode plate is a graphite electrode plate or a stainless steel electrode plate.
3. The three-dimensional electrolytic catalytic oxidation apparatus according to claim 1, wherein: one surface of the anode electrode plate is an electrode plate made of a titanium alloy coating.
4. The three-dimensional electrolytic catalytic oxidation apparatus according to claim 1, wherein: and a metal plate coating of iron-nickel alloy is coated on the cathode electrode plate.
5. The three-dimensional electrolytic catalytic oxidation apparatus according to claim 1, wherein: the electric control device is an electric control cabinet.
6. The three-dimensional electrolytic catalytic oxidation apparatus according to claim 1, wherein: the filler of the solid catalyst is a solid catalyst filler with semiconductor characteristics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895165.8A CN110818028A (en) | 2018-08-08 | 2018-08-08 | Three-dimensional electrolytic catalytic oxidation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895165.8A CN110818028A (en) | 2018-08-08 | 2018-08-08 | Three-dimensional electrolytic catalytic oxidation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110818028A true CN110818028A (en) | 2020-02-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810895165.8A Pending CN110818028A (en) | 2018-08-08 | 2018-08-08 | Three-dimensional electrolytic catalytic oxidation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110818028A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112390334A (en) * | 2020-06-19 | 2021-02-23 | 江阴道盛环保科技有限公司 | Electromagnetic wave high-concentration sewage treatment process |
| CN117509841A (en) * | 2024-01-02 | 2024-02-06 | 北京禹涛环境工程有限公司 | Tandem bipolar thin plate blade electrocatalytic sewage treatment device |
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| CN101187034A (en) * | 2007-09-06 | 2008-05-28 | 浙江工业大学 | Bipolar type diaphragm-free type electrolysis device for synthesizing succinic acid |
| CN201626863U (en) * | 2009-09-25 | 2010-11-10 | 中山大学 | Cascaded catalytic and electrolytic coupling reactor |
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| CN208802872U (en) * | 2018-08-08 | 2019-04-30 | 江阴顶立环保科技有限公司 | A kind of three-dimensional electrolysis catalytic oxidizing equipment |
-
2018
- 2018-08-08 CN CN201810895165.8A patent/CN110818028A/en active Pending
Patent Citations (12)
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| US6379525B1 (en) * | 1998-09-02 | 2002-04-30 | Exceltec International Corporation | Enhanced electrolyzer |
| US20020108852A1 (en) * | 2000-12-19 | 2002-08-15 | Basf Aktiengesellschaft | Bipolar quasi-divided electrolysis cells |
| CN101028944A (en) * | 2007-01-12 | 2007-09-05 | 华南理工大学 | Composite electrolytic bath and method for electrolyzing and decoloring pulp-making effluent |
| CN101187034A (en) * | 2007-09-06 | 2008-05-28 | 浙江工业大学 | Bipolar type diaphragm-free type electrolysis device for synthesizing succinic acid |
| CN201626863U (en) * | 2009-09-25 | 2010-11-10 | 中山大学 | Cascaded catalytic and electrolytic coupling reactor |
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|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112390334A (en) * | 2020-06-19 | 2021-02-23 | 江阴道盛环保科技有限公司 | Electromagnetic wave high-concentration sewage treatment process |
| CN117509841A (en) * | 2024-01-02 | 2024-02-06 | 北京禹涛环境工程有限公司 | Tandem bipolar thin plate blade electrocatalytic sewage treatment device |
| CN117509841B (en) * | 2024-01-02 | 2024-04-05 | 北京禹涛环境工程有限公司 | Tandem bipolar thin plate blade electrocatalytic sewage treatment device |
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