CN112919589A - Penetrating type electro-catalysis water treatment device and operation method - Google Patents
Penetrating type electro-catalysis water treatment device and operation method Download PDFInfo
- Publication number
- CN112919589A CN112919589A CN202110129607.XA CN202110129607A CN112919589A CN 112919589 A CN112919589 A CN 112919589A CN 202110129607 A CN202110129607 A CN 202110129607A CN 112919589 A CN112919589 A CN 112919589A
- Authority
- CN
- China
- Prior art keywords
- plate
- water
- cathode
- double
- porous anode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 151
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000000149 penetrating effect Effects 0.000 title claims description 17
- 238000006555 catalytic reaction Methods 0.000 title description 3
- 239000002351 wastewater Substances 0.000 claims abstract description 42
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 10
- 230000003647 oxidation Effects 0.000 claims abstract description 8
- 230000035515 penetration Effects 0.000 claims abstract description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 37
- 239000010936 titanium Substances 0.000 claims description 35
- 229910052719 titanium Inorganic materials 0.000 claims description 35
- 238000005086 pumping Methods 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 239000010842 industrial wastewater Substances 0.000 claims description 14
- 150000003839 salts Chemical class 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 239000010935 stainless steel Substances 0.000 claims description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims description 13
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 12
- 230000005684 electric field Effects 0.000 claims description 9
- 229910000929 Ru alloy Inorganic materials 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- FMPKBTUFVFWPQW-UHFFFAOYSA-N [Ru].[Ir].[Pt] Chemical compound [Ru].[Ir].[Pt] FMPKBTUFVFWPQW-UHFFFAOYSA-N 0.000 claims description 6
- HTXDPTMKBJXEOW-UHFFFAOYSA-N dioxoiridium Chemical compound O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 claims description 6
- 229910000457 iridium oxide Inorganic materials 0.000 claims description 6
- 229910000464 lead oxide Inorganic materials 0.000 claims description 6
- HTUMBQDCCIXGCV-UHFFFAOYSA-N lead oxide Chemical compound [O-2].[Pb+2] HTUMBQDCCIXGCV-UHFFFAOYSA-N 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- 229910001925 ruthenium oxide Inorganic materials 0.000 claims description 6
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- SKRWFPLZQAAQSU-UHFFFAOYSA-N stibanylidynetin;hydrate Chemical compound O.[Sn].[Sb] SKRWFPLZQAAQSU-UHFFFAOYSA-N 0.000 claims description 5
- CJTCBBYSPFAVFL-UHFFFAOYSA-N iridium ruthenium Chemical compound [Ru].[Ir] CJTCBBYSPFAVFL-UHFFFAOYSA-N 0.000 claims description 4
- 229910001362 Ta alloys Inorganic materials 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- ULFQGKXWKFZMLH-UHFFFAOYSA-N iridium tantalum Chemical compound [Ta].[Ir] ULFQGKXWKFZMLH-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 229910001936 tantalum oxide Inorganic materials 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000006227 byproduct Substances 0.000 claims description 2
- 238000006056 electrooxidation reaction Methods 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000004945 silicone rubber Substances 0.000 claims 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims 1
- 210000000476 body water Anatomy 0.000 abstract 1
- 238000011001 backwashing Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 8
- 238000005070 sampling Methods 0.000 description 8
- 239000012141 concentrate Substances 0.000 description 6
- 238000003825 pressing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 231100001231 less toxic Toxicity 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000003440 toxic substance 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
- 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
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
- C02F2001/46138—Electrodes comprising a substrate and a coating
- C02F2001/46142—Catalytic coating
-
- 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
- C02F2001/46152—Electrodes characterised by the shape or form
- C02F2001/46157—Perforated or foraminous electrodes
- C02F2001/46161—Porous electrodes
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General 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)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
一种穿透式电催化水处理装置及运行方法，包括壳体，所述壳体一端设置有进水口，另一端设置有出水口，所述壳体内部设置有多个依次间隔排列的阴极板和双层密封式多孔阳极板，所述进水口与进水泵连通，待处理废水经进水泵由壳体进水口进入，在各阴极板和双层密封式多孔阳极板之间流动，并从壳体出水口流出，所述出水口位于壳体的下方。本发明经处理高含盐废水的结果表明，该装置有良好的电催化氧化能力，可以显著提高废水中色度、COD及氨氮的去除效率。
A penetration type electrocatalytic water treatment device and operation method, comprising a casing, one end of the casing is provided with a water inlet, the other end is provided with a water outlet, and a plurality of cathode plates arranged in sequence and spaced are arranged inside the casing and the double-layer sealed porous anode plate, the water inlet is communicated with the inlet pump, the wastewater to be treated enters from the shell water inlet through the inlet pump, flows between each cathode plate and the double-layer sealed porous anode plate, and flows from the shell The body water outlet flows out, and the water outlet is located under the casing. The results of treating high-salt wastewater in the present invention show that the device has good electrocatalytic oxidation capacity, and can significantly improve the removal efficiency of chroma, COD and ammonia nitrogen in wastewater.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a penetrating type electrocatalysis water treatment device and an operation method thereof.
Background
The electro-catalysis water treatment technology is a high-efficiency water treatment technology for removing organic pollutants by rapid oxidation, and has wide application prospect. The basic principle of electrocatalytic water treatment technology is to reduce or remove pollutants from wastewater by causing direct electrochemical reactions or indirect electrochemical conversions of the pollutants at electrodes. It can be divided into directElectrolysis and indirect electrolysis. Direct electrolysis refers to the removal of contaminants from wastewater by direct oxidation or reduction at the electrodes. Indirect electrolysis refers to the use of electrochemically generated redox species (e.g. chlorate, hypochlorite, H with strong oxidation properties)2O2And O3And solvated electrons, HO2Isoradicals) act as a reactant or catalyst to convert the contaminants into less toxic substances. The electrocatalysis treatment technology has the characteristics of multifunction, high flexibility, no pollution or little pollution, easy controllability and the like, and meanwhile, the electrocatalysis treatment technology has the advantages of small equipment, small occupied area, simple operation management and good treatment effect, and is increasingly valued by people at present. However, the practical application of the method has the defects of high power consumption, unstable effect and the like, so that the method prevents the wide application of the method. The search for energy-saving and efficient electro-catalytic water treatment technology and equipment has become an important direction for the research of electrochemical application technology.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a penetrating type electrocatalysis water treatment device and an operation method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that:
a penetration type electrocatalysis water treatment device comprises a water inlet pump 1, a power supply 2, a cathode and anode connecting copper bar 3, a water inlet 4, a gas collecting hood 5, a shell 6, a central water collecting pipe 7, a central water collecting pipe interface flange 8, a water outlet 9, a slag discharging port 10, a water pumping pipeline valve 11, a backwashing pipeline valve 12, a self-sucking pump 13, a backwashing pump 14, an electrode group upper frame 15 and a lower frame 22, a connecting hose 16, an insulating rod end-sealing 17, an insulating rod 18, an insulating bush 19, a cathode plate 21 and a double-layer sealed porous anode plate 22, wherein one end of the shell 6 is provided with the water inlet 4, the other end of the shell is provided with the water outlet 9, a plurality of cathode plates 21 and double-layer sealed porous anode plates 22 which are sequentially arranged at intervals are arranged inside the shell 6, the water inlet 4 is communicated with the water inlet pump 1, wastewater to be treated enters from the shell water inlet 4 through, and flows out of a shell water outlet 9, wherein the water outlet 9 is positioned below the shell 6.
The two sides of the cathode plate 21 are both provided with connecting holes 27, the two sides of the double-layer sealed porous anode plate 20 are both provided with connecting holes 32, and the connecting holes are connected and assembled through the insulating rod 18, the insulating bush 19 and the insulating rod end sealing 17.
The adjacent cathode plates 21 and the double-layer sealed porous anode plate 22 are separated by the insulating bush 20.
The assembly ends of the cathode plate 21 and the double-sealed porous anode plate 22 are assembled by the insulating rod end-capping 17.
The cathode plate 21 is provided with four connecting holes 32 at both sides thereof, a cathode terminal 30 at one end thereof, and a cathode terminal hole 31.
The double-layer sealed porous anode plate 22 is formed by welding two porous anode plates which are oppositely arranged with two side titanium plates 23 and two side titanium plates 28, the upper end and the lower end of the double-layer sealed porous anode plate 22 are respectively provided with an insulating plate 26 and an insulating plate 29 to form a sealed cavity, the upper part of the titanium plate 23 is provided with a wiring hole 24, and the insulating plate 26 is provided with two suction water outlets 25.
The titanium plate 23 and the titanium plate 28 are solid titanium plates, and the length of the titanium plate 23 is 100mm higher than that of the double-layer sealed porous anode plate 2230-.
The double-layer sealed porous anode plate 22 is a titanium electrode coated with iridium oxide, ruthenium oxide, tantalum oxide, iridium-tantalum alloy oxide, iridium-ruthenium alloy oxide, platinum-iridium-ruthenium alloy oxide, lead oxide, antimony-tin oxide or platinum.
The insulating plate is made of PVC, plastics, silicon rubber and PTFE.
The suction water outlet 25 is connected with the central water collecting pipe 7 through the hose 16, the central water collecting pipe 7 is connected with the self-sucking pump 13 through the central water collecting pipe connecting flange 8, when the equipment produces water, a valve of a water sucking pipeline is opened, the self-sucking pump 13 runs to generate negative pressure, and sewage is sucked to the central water collecting pipe 7 from the shell through the porous electro-catalytic anode plate 22;
the central water collecting pipe 7 is simultaneously connected with a backwashing pump 14, a backwashing pipeline valve 12 and the backwashing pump 14 are intermittently opened, and when the water yield is reduced, the backwashing pipeline valve 12 and the backwashing pump 14 are opened to reversely pressurize and flush the porous electrocatalysis anode plate 22.
The cathode plate 21 is connected with a cathode copper bar 3 of the power supply 2 through a cathode wiring board 30, and the double-layer sealed porous anode plate 22 is connected with an anode copper bar of the power supply 2 through an anode wiring board 23.
The cathode plate 21 is made of a titanium plate, a titanium mesh, a stainless steel plate, a stainless steel mesh or a graphite plate.
A penetration type electrocatalysis water treatment device and an operation method thereof, comprising the following steps:
a. the external power supply 2 acts on the cathode plate 21 through the cathode copper bar 3-1 and acts on the double-layer sealed porous anode plate 22 through the anode copper bar 3-2;
b. pumping the salt-containing industrial wastewater electrocatalysis wastewater from a water inlet 4 by using a circulating pump 1, wherein the flow rate is 1-10t/h, and the wastewater sequentially passes through a cathode plate 21 and a double-layer sealed porous anode plate 22 to form baffling and backflow;
c. the water pumping pipeline valve 11 is opened, the self-priming pump 13 operates to provide negative pressure, so that wastewater to be treated penetrates through the double-layer sealed porous anode plate 22, a 5-100 micron pore channel is formed in the porous anode plate, the wastewater forms a reaction area in the pore channel, is concentrated to the central water collecting pipe 7 and is connected with a water pumping pipeline through the central water collecting pipe flange 8 to form water production;
d. regulating the voltage of the applied electric field to 1-15.0V and the current density to 5-60mA/cm2；
e. After stable operation for 1h, sampling is carried out from the water outlet of the central water collecting pipe 7, and water chromaticity, ammonia nitrogen and COD indexes are detected.
f. By-products of hydrogen and oxygen generated in the electro-oxidation treatment process are collected and treated by the gas-collecting hood 5 and then discharged;
g. after the equipment runs for a period of time, a valve of a slag discharging port 10 is opened to discharge slag.
h. After the equipment runs for a period of time, the self-priming pump 13 and the water pumping pipeline valve 11 are closed, the backwashing valve 12 and the backwashing pump 14 are opened, and backwashing is carried out on the porous electrode plate.
The invention has the beneficial effects that:
1 increasing the actual electrode loading area per unit volume using a penetrating electrode structure.
2, by introducing the porous electrocatalytic anode, the reaction mass transfer efficiency and the reaction path are increased, and the reaction efficiency of electrocatalytic oxidation is improved.
3 the electrocatalytic anode is a porous electrode, and the penetrating water treatment process enhances the reaction efficiency and is beneficial to realizing the application of the electrocatalytic oxidation technology in the actual water treatment process.
Drawings
FIG. 1 is a process flow diagram of the apparatus of the present invention.
FIG. 2 is an electrode assembly diagram of the device of the present invention.
FIG. 3 is a schematic diagram of the anode of the device of the present invention.
FIG. 4 is a schematic view of the cathode structure of the device of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-4: including taking into water inlet 4, delivery port 9, row's cinder notch 10 and gas collecting cover 5's casing 6, be provided with a plurality of negative plates 21 and the porous anode plate of double-deck sealed formula 22 of interval arrangement in proper order in the casing 6, pending waste water gets into by casing water inlet 4 through intake pump 1, flows between each negative plate 21 and the porous anode plate of double-deck sealed formula 22 to from the outflow of casing delivery port 9, self priming pump 13 opens during water production, and backwash pump 14 opens during the back flush.
The cathode plate 21 and the double-layer sealed porous anode plate 20 are provided with connecting holes 27 and 32 on both sides and connected through an insulating rod 19.
The adjacent cathode plates 21 and the double-layer sealed porous anode plate 22 are separated by the insulating bush 20.
The double-sealed porous anode plate 22 is sealed by an insulating plate 26 and an insulating plate 29, and two suction water outlets 25 are formed at one end of the wiring.
The suction water outlet 25 is connected with the central water collecting pipe 16 through the hose 17, the central water collecting pipe 16 is connected with the self-sucking pump 13, when the equipment produces water, the self-sucking pump 13 runs to generate negative pressure, and sewage penetrates through the porous electro-catalytic anode plate 22 from the shell to be sucked to the central water collecting pipe 16.
The central water collecting pipe 16 is connected with the backwashing pump 14, the backwashing pump 14 is intermittently started, and when the water yield is reduced, the backwashing pump 14 is started to reversely pressurize and flush the porous electrocatalytic anode plate 22.
The cathode plate 21 is connected with the cathode copper bar 3 of the power supply 2 through a cathode wiring board 30, and the double-layer sealed porous anode plate is connected with the anode copper bar of the power supply 2 through an anode wiring board 23.
The insulating plate is made of PVC, plastics, silicon rubber and PTFE.
The cathode plate is made of a titanium plate, a titanium net, a stainless steel plate, a stainless steel net and a graphite plate.
The double-layer sealed porous anode plate 22 is a titanium electrode coated with iridium oxide, ruthenium oxide, tantalum oxide, iridium-tantalum alloy oxide, iridium-ruthenium alloy oxide, platinum-iridium-ruthenium alloy oxide, lead oxide, antimony-tin oxide or platinum.
The wastewater to be treated enters the shell 6 from the water inlet 4, sequentially flows through the double-layer sealed porous anode plate 22, penetrates through the porous anode plate and flows out of the central water collecting pipe 16, and the water outlet 9 is positioned below the shell 6.
The invention designs a sealed porous electro-catalytic anode, and the wastewater to be treated penetrates through the electrode micro-channels to participate in the electro-catalytic oxidation reaction, thereby effectively improving the removal efficiency of the chromaticity, ammonia nitrogen and COD of the wastewater. The specific operation is carried out according to the following steps:
a. the external power supply 2 acts on the cathode plate 21 and the sealed porous anode plate 22 through the cathode copper bar 3 and the anode copper bar respectively;
b. pumping the salt-containing industrial wastewater electrocatalysis wastewater from a water inlet 4 by using a circulating pump 1, wherein the flow rate is 1-10t/h, and the wastewater sequentially passes through a cathode plate 21 and a sealed porous anode plate 22 to form baffling and backflow;
c. the self-priming pump 13 provides negative pressure to enable the wastewater to be treated to penetrate through the sealed porous anode plate 22, a pore channel of 5-100 microns is formed in the porous anode plate, and the wastewater forms a reaction zone in the pore channel and is then concentrated to the central water collecting pipe 8 to be discharged;
d. regulating the voltage of the applied electric field to 1-15.0V and the current density to 5-60mA/cm2；
e. After stable operation for 1h, sampling is carried out from the water outlet of the central water collecting pipe 8, and water chromaticity, ammonia nitrogen and COD indexes are detected.
The following are several specific examples.
Example 1
Ruthenium oxide coated titanium anode permeable electrocatalytic reactor for treating salt-containing industrial wastewater:
a. the cathode plate 21 is a stainless steel cathode pressing plate, and the sealed porous anode plate 22 is a ruthenium oxide coated titanium anode plate;
b. the method comprises the following steps of (1) pumping the salt-containing industrial wastewater electrocatalysis wastewater from a water inlet 4 by using a circulating pump 1, wherein the flow rate is 1t/h, and the wastewater sequentially passes through a cathode plate 21 and a sealed porous anode plate 22 to form baffling and backflow;
c. the self-priming pump 13 provides negative pressure to make the waste water to be treated penetrate the sealed porous anode plate 22 to form a reaction area in the micro-channel and then concentrate to the central water collecting pipe 8 for discharge;
d. the voltage of an external electric field is adjusted to be 1V, and the current density is adjusted to be 5mA/cm2；
e. After stable operation for 1h, sampling is carried out from the water outlet of the central water collecting pipe 8, and water chromaticity, ammonia nitrogen and COD indexes are detected.
The COD of the inlet water is 564mg/L and the ammonia nitrogen is 240mg/L, the chroma in the water body can be completely removed, the COD of the outlet water is reduced to 50mg/L, and the ammonia nitrogen is reduced to 1 mg/L.
Example 2
Treating salt-containing industrial wastewater by using a lead oxide coated titanium anode permeable electrocatalysis reactor:
a. the cathode plate 21 is a stainless steel cathode plate, and the sealed porous anode plate 22 is a lead oxide coated titanium anode plate;
b. the method comprises the following steps of (1) pumping the salt-containing industrial wastewater electrocatalysis wastewater from a water inlet 4 by using a circulating pump 1, wherein the flow rate is 1t/h, and the wastewater sequentially passes through a cathode plate 21 and a sealed porous anode plate 22 to form baffling and backflow;
c. the self-priming pump 13 provides negative pressure to make the waste water to be treated penetrate the sealed porous anode plate 22 to form a reaction area in the micro-channel and then concentrate to the central water collecting pipe 8 for discharge;
d. the voltage of an external electric field is adjusted to be 1V, and the current density is adjusted to be 5mA/cm2；
e. After stable operation for 1h, sampling is carried out from the water outlet of the central water collecting pipe 8, and water chromaticity, ammonia nitrogen and COD indexes are detected.
The COD of the inlet water is 564mg/L and the ammonia nitrogen is 240mg/L, the chroma in the water body can be completely removed, the COD of the outlet water is reduced to 55mg/L, and the ammonia nitrogen is reduced to 2.5 mg/L.
Example 3
a. The cathode plate 21 is a stainless steel cathode pressing plate, and the sealed porous anode plate 22 is an antimony-tin oxide coated titanium anode plate;
b. the method comprises the following steps of (1) pumping the salt-containing industrial wastewater electrocatalysis wastewater from a water inlet 4 by using a circulating pump 1, wherein the flow rate is 1t/h, and the wastewater sequentially passes through a cathode plate 21 and a sealed porous anode plate 22 to form baffling and backflow;
c. the self-priming pump 13 provides negative pressure to make the waste water to be treated penetrate the sealed porous anode plate 22 to form a reaction area in the micro-channel and then concentrate to the central water collecting pipe 8 for discharge;
d. the voltage of an external electric field is adjusted to be 1V, and the current density is adjusted to be 5mA/cm2；
e. After stable operation for 1h, sampling is carried out from the water outlet of the central water collecting pipe 8, and water chromaticity, ammonia nitrogen and COD indexes are detected.
The COD of the inlet water is 564mg/L and the ammonia nitrogen is 240mg/L, the chroma in the water body can be completely removed, the COD of the outlet water is reduced to 48mg/L, and the ammonia nitrogen is reduced to 1.2 mg/L.
Example 4
Treating salt-containing industrial wastewater by using an iridium oxide coated titanium anode penetrating electrocatalysis reactor:
a. the cathode plate 21 is a stainless steel cathode pressing plate, and the sealed porous anode plate 22 is an iridium oxide coated titanium anode plate;
b. the method comprises the following steps of (1) pumping the salt-containing industrial wastewater electrocatalysis wastewater from a water inlet 4 by using a circulating pump 1, wherein the flow rate is 1t/h, and the wastewater sequentially passes through a cathode plate 21 and a sealed porous anode plate 22 to form baffling and backflow;
c. the self-priming pump 13 provides negative pressure to make the waste water to be treated penetrate the sealed porous anode plate 22 to form a reaction area in the micro-channel and then concentrate to the central water collecting pipe 8 for discharge;
d. the voltage of an external electric field is adjusted to be 1V, and the current density is adjusted to be 5mA/cm2；
e. After stable operation for 1h, sampling is carried out from the water outlet of the central water collecting pipe 8, and water chromaticity, ammonia nitrogen and COD indexes are detected.
The COD of the inlet water is 564mg/L and the ammonia nitrogen is 240mg/L, the chroma in the water body can be completely removed, the COD of the outlet water is reduced to 55mg/L, and the ammonia nitrogen is reduced to 2.4 mg/L.
Example 5
The platinum-coated titanium anode penetrating electrocatalysis reactor is used for treating industrial wastewater containing salt:
a. the cathode plate 21 is a stainless steel cathode pressing plate, and the sealed porous anode plate 22 is a platinum-coated titanium anode plate;
b. the method comprises the following steps of (1) pumping the salt-containing industrial wastewater electrocatalysis wastewater from a water inlet 4 by using a circulating pump 1, wherein the flow rate is 1t/h, and the wastewater sequentially passes through a cathode plate 21 and a sealed porous anode plate 22 to form baffling and backflow;
c. the self-priming pump 13 provides negative pressure to make the waste water to be treated penetrate the sealed porous anode plate 22 to form a reaction area in the micro-channel and then concentrate to the central water collecting pipe 8 for discharge;
d. the voltage of an external electric field is adjusted to be 1V, and the current density is adjusted to be 5mA/cm2；
e. After stable operation for 1h, sampling is carried out from the water outlet of the central water collecting pipe 8, and water chromaticity, ammonia nitrogen and COD indexes are detected.
The COD of the inlet water is 564mg/L and the ammonia nitrogen is 240mg/L, the chroma in the water body can be completely removed, the COD of the outlet water is reduced to 40mg/L, and the ammonia nitrogen is reduced to 1.5 mg/L.
Example 6
The platinum iridium ruthenium composite oxide is coated on a titanium anode penetrating electrocatalytic reactor to treat salt-containing industrial wastewater:
a. the cathode plate 21 is a stainless steel cathode pressing plate, and the sealed porous anode plate 22 is a titanium anode plate coated with platinum-iridium-ruthenium composite oxide;
b. the method comprises the following steps of (1) pumping the salt-containing industrial wastewater electrocatalysis wastewater from a water inlet 4 by using a circulating pump 1, wherein the flow rate is 1t/h, and the wastewater sequentially passes through a cathode plate 21 and a sealed porous anode plate 22 to form baffling and backflow;
c. the self-priming pump 13 provides negative pressure to make the waste water to be treated penetrate the sealed porous anode plate 22 to form a reaction area in the micro-channel and then concentrate to the central water collecting pipe 8 for discharge;
d. the voltage of an external electric field is adjusted to be 1V, and the current density is adjusted to be 5mA/cm2；
e. After stable operation for 1h, sampling is carried out from the water outlet of the central water collecting pipe 8, and water chromaticity, ammonia nitrogen and COD indexes are detected.
The COD of the inlet water is 564mg/L and the ammonia nitrogen is 240mg/L, the chroma in the water body can be completely removed, the COD of the outlet water is reduced to 36mg/L, and the ammonia nitrogen is reduced to 0.8 mg/L.
The technical scheme of the invention has various technical suggestions, and the theoretical basis of the alternative scheme is as follows:
the sealed porous anode plate 22 used in the given embodiment of the present invention is an iridium oxide, ruthenium oxide, iridium ruthenium alloy oxide, platinum iridium ruthenium alloy oxide, lead oxide, antimony-tin oxide, or platinum-coated titanium electrode, and the cathode plate 21 is made of titanium, stainless steel, or aluminum, from which it is inferred that: when the anode plate 9 adopts other types of electrodes (such as carbon cloth, carbon fiber, graphite electrode and the like), and the cathode pressing plate 8 adopts other types of electrodes (such as carbon cloth, carbon fiber, graphite electrode and the like), the technical effect of the invention can be realized.
The penetrating electrode assembly mode in the embodiment provided by the invention is an improved mode of electrode arrangement, and a person skilled in the art can obtain technical teaching according to the technical scheme provided by the embodiment of the invention, and the technical effect of the invention is realized by changing the structure and the operation mode of the penetrating electrode.
In the method of the present invention, the sealed porous anode plate 22 adopts a double-layer welding sealing manner, and those skilled in the art can obtain technical teaching according to the technical scheme provided by the present invention, and adopt different sealing methods to achieve the same technical effect.
The invention designs a penetrating electrocatalysis water treatment device, creatively processes a porous titanium anode into a sealed anode assembly, utilizes negative pressure suction to enable waste water to penetrate through an inner pore passage of the porous anode plate, and forms a reinforced oxidation reaction zone in the inner pore passage, thereby playing the beneficial effect of reinforcing electrocatalysis oxidation.
In addition, the porous anode plate assembly greatly increases the filling area of the electric anode in unit volume, and is beneficial to improving the utilization efficiency of the device.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110129607.XA CN112919589B (en) | 2021-01-29 | 2021-01-29 | A penetrating electrocatalytic water treatment device and its operating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110129607.XA CN112919589B (en) | 2021-01-29 | 2021-01-29 | A penetrating electrocatalytic water treatment device and its operating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112919589A true CN112919589A (en) | 2021-06-08 |
| CN112919589B CN112919589B (en) | 2023-07-18 |
Family
ID=76168908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110129607.XA Active CN112919589B (en) | 2021-01-29 | 2021-01-29 | A penetrating electrocatalytic water treatment device and its operating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112919589B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380369A (en) * | 2022-01-27 | 2022-04-22 | 重庆融极环保工程有限公司 | A device and method for rapidly recovering phosphate based on weak electric field |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2087423C1 (en) * | 1993-12-09 | 1997-08-20 | Закрытое акционерное общество "РЭП Водоканал" | Method of cleaning water streams |
| US20020153245A1 (en) * | 2001-02-14 | 2002-10-24 | Henuset Yves Michel | Flow-through eletrochemical reactor for wastewater treatment |
| KR200333663Y1 (en) * | 2003-08-22 | 2003-11-14 | 코오롱건설주식회사 | A continuous electrical analytic oxidation reactor of waste water with high concentrated nitrogen compound |
| US20130146448A1 (en) * | 2011-12-12 | 2013-06-13 | Hon Hai Precision Industry Co., Ltd. | Membrane reactor |
| CN109279685A (en) * | 2018-11-22 | 2019-01-29 | 陕西科技大学 | A disc type electrocatalytic water treatment device |
-
2021
- 2021-01-29 CN CN202110129607.XA patent/CN112919589B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2087423C1 (en) * | 1993-12-09 | 1997-08-20 | Закрытое акционерное общество "РЭП Водоканал" | Method of cleaning water streams |
| US20020153245A1 (en) * | 2001-02-14 | 2002-10-24 | Henuset Yves Michel | Flow-through eletrochemical reactor for wastewater treatment |
| KR200333663Y1 (en) * | 2003-08-22 | 2003-11-14 | 코오롱건설주식회사 | A continuous electrical analytic oxidation reactor of waste water with high concentrated nitrogen compound |
| US20130146448A1 (en) * | 2011-12-12 | 2013-06-13 | Hon Hai Precision Industry Co., Ltd. | Membrane reactor |
| CN109279685A (en) * | 2018-11-22 | 2019-01-29 | 陕西科技大学 | A disc type electrocatalytic water treatment device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380369A (en) * | 2022-01-27 | 2022-04-22 | 重庆融极环保工程有限公司 | A device and method for rapidly recovering phosphate based on weak electric field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112919589B (en) | 2023-07-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113401981B (en) | A device and method for treating organic wastewater by electro-Fenton without adding chemicals | |
| US11345620B2 (en) | Disc-type electrocatalytic water treatment device | |
| CN102774932A (en) | Method for removing COD (chemical oxygen demand) and ammonia nitrogen from wastewater by using titanium-base lead peroxide composite electrode | |
| CN110921785B (en) | A kind of electrofiltration catalytic persulfate brine treatment equipment and method for treating water using the same | |
| CN110194508A (en) | A kind of continous way electrocatalytic reaction system and its indirect adjusting method of electric current | |
| KR101511112B1 (en) | Air Pollutants Removal Apparatus using Electro-activated Catalyst Oxidation Process, And Operation Method Thereof | |
| CN109279685B (en) | Dish formula electro-catalysis water treatment facilities | |
| CN112919589A (en) | Penetrating type electro-catalysis water treatment device and operation method | |
| CN109336226A (en) | A kind of rotating electrode reactor and organic sewage treatment method | |
| CN103288186B (en) | Electrolysis device for treating chlorinated organic wastewater under combined action of multiple electrodes | |
| CN107840441A (en) | Intelligent suitching type ozone/electric filter collaboration water treatment facilities and the method using its progress water process | |
| CN106966467A (en) | A kind of polynary electrochemical waste water treatment device of modularization and its method for handling waste water | |
| CN110642340B (en) | Circulating flow type electric-assisted ozone water treatment equipment and method for treating water by using same | |
| CN210122499U (en) | A continuous electrocatalytic reaction system | |
| US11866352B2 (en) | Method for removing chlorinated hydrocarbons in groundwater through step-by-step electrocatalytic dechlorination degradation | |
| CN206915816U (en) | The polynary electrochemical waste water treatment device of modularization | |
| CN218115075U (en) | Multi-stage continuous flow electrochemical reactor for water treatment | |
| CN217418276U (en) | High-efficient H of producing of electro-catalysis 2 O 2 Jet device integrated device | |
| CN111377535A (en) | An anaerobic forward osmosis membrane bioreactor process coupled with electrochemical oxidation of ammonia nitrogen | |
| CN212924677U (en) | High-efficient, low energy consumption's rubbish filtrating processing apparatus | |
| CN215249752U (en) | A bio-carbon-based nano-iron coupled self-cleaning three-dimensional electrode | |
| CN210825558U (en) | Electrochemical treatment device for water treatment | |
| CN211688632U (en) | System for treating wastewater | |
| CN210825559U (en) | Electrochemical treatment integrated device for water treatment | |
| CN204384936U (en) | A kind of multiple-unit integrated form electrolyzer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |