CN219652840U - Electrolytic water coupling sewage treatment system - Google Patents
Electrolytic water coupling sewage treatment system Download PDFInfo
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- CN219652840U CN219652840U CN202321009226.9U CN202321009226U CN219652840U CN 219652840 U CN219652840 U CN 219652840U CN 202321009226 U CN202321009226 U CN 202321009226U CN 219652840 U CN219652840 U CN 219652840U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 117
- 239000010865 sewage Substances 0.000 title claims abstract description 107
- 230000008878 coupling Effects 0.000 title claims abstract description 77
- 238000010168 coupling process Methods 0.000 title claims abstract description 77
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 77
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 57
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000001257 hydrogen Substances 0.000 claims abstract description 37
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 37
- 238000010248 power generation Methods 0.000 claims abstract description 32
- 230000001651 autotrophic effect Effects 0.000 claims abstract description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000001301 oxygen Substances 0.000 claims abstract description 22
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 22
- 239000012528 membrane Substances 0.000 claims description 27
- 238000004065 wastewater treatment Methods 0.000 claims description 13
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- HJPBEXZMTWFZHY-UHFFFAOYSA-N [Ti].[Ru].[Ir] Chemical compound [Ti].[Ru].[Ir] HJPBEXZMTWFZHY-UHFFFAOYSA-N 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 229910021389 graphene Inorganic materials 0.000 claims description 4
- 229920001577 copolymer Polymers 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract description 12
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 239000002957 persistent organic pollutant Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 4
- 239000003814 drug Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 238000001354 calcination Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 150000003254 radicals Chemical class 0.000 description 2
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- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 231100001234 toxic pollutant Toxicity 0.000 description 1
- AQLJVWUFPCUVLO-UHFFFAOYSA-N urea hydrogen peroxide Chemical compound OO.NC(N)=O AQLJVWUFPCUVLO-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model provides an electrolytic water coupled sewage treatment system, which comprises an electrolytic water device, a coupled sewage treatment device, a first conveying pipe and a second conveying pipe, wherein the first conveying pipe is connected with the electrolytic water device; the input end of the first conveying pipe is connected with the water electrolysis device, the output end of the first conveying pipe is connected with the coupling sewage treatment device, the input end of the second conveying pipe is connected with the water electrolysis device, and the output end of the second conveying pipe is connected with the coupling sewage treatment device; the input end of the first conveying pipe is close to the anode of the water electrolysis device, the output end of the first conveying pipe is close to the anode of the coupling sewage treatment device, the input end of the second conveying pipe is close to the cathode of the water electrolysis device, the output end of the second conveying pipe is arranged between the cathode of the coupling sewage treatment device and the anode, and a hydrogen autotrophic denitrification biological film is arranged between the cathode of the coupling sewage treatment device and the anode. The photovoltaic power generation device is utilized to convert green renewable solar energy into electric energy, the electrolyzed water is used for hydrogen production and oxygen production, the hydrogen is used as a denitrification electron donor for autotrophic denitrification, and the electrolyzed oxygen is utilized for producing hydrogen peroxide, so that the green and efficient treatment of pollutants is realized.
Description
Technical Field
The utility model relates to the field of sewage treatment, in particular to a sewage treatment system with electrolytic water coupling.
Background
Industrial development produces a large amount of toxic organic pollutants, and the release of the toxic organic pollutants into the environment has been seriously threatening the ecological environment and life health, so detoxification and advanced treatment of the refractory toxic pollutants are urgent.
The Total Nitrogen (TN) content of the industrial wastewater is high, the carbon-nitrogen ratio is low, the biodegradability is poor, the biotoxicity is high, and the industrial wastewater is difficult to realize standard discharge after being treated by adopting a common biochemical method. In addition, a large amount of carbon sources are required to be used for denitrification in the wastewater treatment process, so that the running cost of wastewater treatment is increased, a large amount of carbon dioxide is released, advanced oxidation treatment technology is also required to be arranged at the tail end of treatment to deeply treat refractory organic matters, and a large amount of oxidants such as acid, alkali, hydrogen peroxide and the like are required to be added, however, the conventional anthraquinone industrial production technology is seriously conflicted with the sustainable development of green in the conventional hydrogen peroxide production process, and the aims of energy conservation, consumption reduction and double carbon in China are not met. In addition, the sewage treatment plant is located in remote area, and the medicament that adds in sewage treatment process has the transportation problem of storage difficulty.
Disclosure of Invention
In view of the problems described, the present utility model has been made to provide an electrolyzed water coupled wastewater treatment system that overcomes the problems or at least partially solves the problems, comprising:
the sewage treatment system comprises an electrolytic water device, a coupling sewage treatment device, a first conveying pipe and a second conveying pipe;
the input end of the first conveying pipe is connected with the water electrolysis device, the output end of the first conveying pipe is connected with the coupling sewage treatment device, the input end of the second conveying pipe is connected with the water electrolysis device, and the output end of the second conveying pipe is connected with the coupling sewage treatment device; the input end of the first conveying pipe is close to the anode of the water electrolysis device, the output end of the first conveying pipe is close to the anode of the coupling sewage treatment device, the input end of the second conveying pipe is close to the cathode of the water electrolysis device, the output end of the second conveying pipe is arranged between the cathode of the coupling sewage treatment device and the anode, and a hydrogen autotrophic denitrification biological film is arranged between the cathode of the coupling sewage treatment device and the anode;
when sewage treatment is carried out, oxygen generated by the anode of the water electrolysis device is conveyed to one side of the anode of the coupling sewage treatment device through the first conveying pipe; and hydrogen generated by the cathode of the water electrolysis device is conveyed to the hydrogen autotrophic denitrification biological membrane through the second conveying pipe.
Preferably, the device further comprises a photovoltaic power generation device, wherein the photovoltaic power generation device is electrically connected with the water electrolysis device and the coupling sewage treatment device respectively.
Preferably, the cathode of the coupling sewage treatment device is Cu-C 3 N 4 And the anode of the coupling sewage treatment device is a graphene electrode.
Preferably, the cathode of the water electrolysis device is a metal platinum electrode, and the anode of the water electrolysis device is a ruthenium iridium titanium anode.
Preferably, the cathode of the coupled sewage treatment device is provided with an oxygen permeable membrane.
Preferably, an exchange membrane is arranged between the anode and the cathode of the water electrolysis device.
Preferably, the exchange membrane is a sulfonated tetrafluoroethylene-based fluoropolymer-copolymer membrane.
Preferably, the coupling sewage treatment device is provided with a water inlet and a water outlet, the water inlet is arranged at the bottom of the anode of the coupling sewage treatment device, and the water outlet is arranged at one side of the cathode of the coupling sewage treatment device.
Preferably, the photovoltaic power generation device is provided with a distributed photovoltaic power generation plate and a rectification controller, and the distributed photovoltaic power generation plate is electrically connected with the rectification controller.
Preferably, the photovoltaic power generation device is further provided with an electric lead, and the electric lead is respectively connected with the distributed photovoltaic power generation plate, the rectification controller, the cathode and anode of the water electrolysis device and the cathode and anode of the coupling sewage treatment device.
The utility model has the following advantages:
in the embodiment of the utility model, compared with the problems of high energy consumption, large dosage of medicament and difficult synchronous deep removal of total nitrogen and refractory organic matters in the traditional sewage treatment process, the utility model provides the method for synchronously preparing H by utilizing the photovoltaic power generation electrolyzed water and the generated hydrogen of the electrolyzed water as a hydrogen autotrophic denitrification electron acceptor and the generated oxygen 2 O 2 The solution scheme for catalytic oxidation of refractory organic pollutants is as follows: comprises an electrolytic water device, a coupling sewage treatment device, a first conveying pipe and a second conveying pipe; the input end of the first conveying pipe is connected with the water electrolysis device, the output end of the first conveying pipe is connected with the coupling sewage treatment device, the input end of the second conveying pipe is connected with the water electrolysis device, and the output end of the second conveying pipe is connected with the coupling sewage treatment device; wherein the input end of the first conveying pipe is close to the anode of the water electrolysis device, and the output end of the first conveying pipe is close to the coupling sewage treatment deviceThe input end of the second conveying pipe is close to the cathode of the water electrolysis device, the output end of the second conveying pipe is arranged between the cathode and the anode of the coupling sewage treatment device, and a hydrogen autotrophic denitrification biological film is arranged between the cathode and the anode of the coupling sewage treatment device; when sewage treatment is carried out, oxygen generated by the anode of the water electrolysis device is conveyed to one side of the anode of the coupling sewage treatment device through the first conveying pipe; and hydrogen generated by the cathode of the water electrolysis device is conveyed to the hydrogen autotrophic denitrification biological membrane through the second conveying pipe. The utility model utilizes the photovoltaic power generation device to convert the green renewable solar energy into electric energy, electrolyzes water to produce hydrogen and oxygen, and takes the hydrogen as a denitrification electron donor to autotrophically denitrify. Meanwhile, hydrogen peroxide is produced by utilizing electrolytic oxygen, so that the green and efficient treatment of pollutants is realized.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description of the present utility model will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic structural diagram of an electrolytic water coupling sewage treatment system according to an embodiment of the present utility model.
Reference numerals in the drawings of the specification are as follows:
1. a distributed photovoltaic power generation panel; 2. a rectification controller; 3. an electrical lead; 4. a first delivery tube; 5. a second delivery tube; 6. a cathode of the water electrolysis device; 7. an anode of the water electrolysis device; 8. coupling a cathode of the sewage treatment device; 9. coupling an anode of the sewage treatment device; 10. an exchange membrane; 11. a hydrogen autotrophic denitrification biofilm; 12. a water inlet; 13. an oxygen permeable membrane; 14. and a water outlet.
Detailed Description
In order that the manner in which the above recited objects, features and advantages of the present utility model are obtained will become more readily apparent, a more particular description of the utility model briefly described above will be rendered by reference to the appended drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The inventors found by analyzing the prior art that: energy crisis and environmental pollution are two major problems that are challenging in the scientific community, and are attracting widespread attention worldwide. Solar energy has been widely studied as one of inexhaustible, pollution-free and clean energy sources. The large electric energy consumption and the high operation cost are a big bottleneck in the water treatment industry. In general, the electricity consumption cost is about 40% -50% of the operation cost of the water treatment plant. Along with the gradual and serious problem of energy shortage, energy conservation and consumption reduction become the primary problem to be solved urgently in the water treatment industry. The method introduces foreign advanced equipment, adopts foreign advanced treatment process and the like, can not effectively solve the difficult problem that the comprehensive cost of the water treatment industry is high, and can realize multiple benefits of energy conservation, emission reduction, harm removal, environmental protection and the like if the distributed photovoltaic power generation technology is applied to the water treatment industry by virtue of the local system.
The utility model electrolyzes water by utilizing electric energy generated by the distributed photovoltaic power generation panel 1 to generate H 2 And O 2 . Electrolytically generated H 2 Introducing hydrogen autotrophic denitrification membrane 11 into the membrane through a pipeline to release H 2 As electron donor of hydrogen autotrophic denitrification microorganism, NO in wastewater 3 - Reduction to N 2 Realizing deep denitrification. Electrolytically generated O 2 Electrolytic H production by pipeline 2 O 2 Coupling sewage treatment device O 2 Conversion to H in a catalytic electrode under the action of electrical energy generated by photovoltaic 2 O 2 。H 2 O 2 Under the catalysis of copper atoms in the electrode, OH is generated, and can mineralize and degrade organic pollutants difficult to degrade, so that deep removal is realized. The utility model solves the problems of high energy consumption, large dosage of the medicament and difficult synchronous deep removal of total nitrogen and refractory organic matters in the traditional sewage treatment process. Converting green renewable solar energy into electric energy by using distributed photovoltaic panel 1 and preparing water by electrolysisHydrogen and oxygen production, autotrophic denitrification using hydrogen as a denitrification electron donor. Meanwhile, hydrogen peroxide is produced by utilizing electrolytic oxygen, so that the green and efficient treatment of pollutants is realized.
Referring to fig. 1, there is shown an electrolytic water coupled sewage treatment system provided in an embodiment of the present utility model, including an electrolytic water device, a coupled sewage treatment device, a first conveying pipe 4 and a second conveying pipe 5;
the input end of the first conveying pipe 4 is connected with the water electrolysis device, the output end of the first conveying pipe is connected with the coupling sewage treatment device, the input end of the second conveying pipe 5 is connected with the water electrolysis device, and the output end of the second conveying pipe is connected with the coupling sewage treatment device; the input end of the first conveying pipe 4 is close to the anode of the water electrolysis device, the output end of the first conveying pipe is close to the anode of the coupling sewage treatment device, the input end of the second conveying pipe 5 is close to the cathode of the water electrolysis device, the output end of the second conveying pipe is arranged between the cathode and the anode of the coupling sewage treatment device, and a hydrogen autotrophic denitrification biological film 11 is arranged between the cathode and the anode of the coupling sewage treatment device;
when sewage treatment is carried out, oxygen generated by the anode of the water electrolysis device is conveyed to one side of the anode of the coupling sewage treatment device through the first conveying pipe 4; the hydrogen generated by the cathode of the water electrolysis device is conveyed to the hydrogen autotrophic denitrification biological membrane 11 through the second conveying pipe 5.
In the embodiment of the utility model, compared with the problems of high energy consumption, large dosage of medicament and difficult synchronous deep removal of total nitrogen and refractory organic matters in the traditional sewage treatment process, the utility model provides the method for synchronously preparing H by utilizing the photovoltaic power generation electrolyzed water and the generated hydrogen of the electrolyzed water as a hydrogen autotrophic denitrification electron acceptor and the generated oxygen 2 O 2 The solution scheme for catalytic oxidation of refractory organic pollutants is as follows: comprises an electrolytic water device, a coupling sewage treatment device, a first conveying pipe 4 and a second conveying pipe 5; the input end of the first conveying pipe 4 is connected with the water electrolysis device, the output end of the first conveying pipe is connected with the coupling sewage treatment device, and the input end of the second conveying pipe 5 is connected with the water electrolysis device, and the output end of the second conveying pipe is connected with the coupling sewage treatment deviceThe sewage treatment device is connected; the input end of the first conveying pipe 4 is close to the anode of the water electrolysis device, the output end of the first conveying pipe is close to the anode of the coupling sewage treatment device, the input end of the second conveying pipe 5 is close to the cathode of the water electrolysis device, the output end of the second conveying pipe is arranged between the cathode and the anode of the coupling sewage treatment device, and a hydrogen autotrophic denitrification biological film 11 is arranged between the cathode and the anode of the coupling sewage treatment device; when sewage treatment is carried out, oxygen generated by the anode of the water electrolysis device is conveyed to one side of the anode of the coupling sewage treatment device through the first conveying pipe 4; the hydrogen generated by the cathode of the water electrolysis device is conveyed to the hydrogen autotrophic denitrification biological membrane 11 through the second conveying pipe 5. The utility model utilizes the photovoltaic power generation device to convert the green renewable solar energy into electric energy, electrolyzes water to produce hydrogen and oxygen, and takes the hydrogen as a denitrification electron donor to autotrophically denitrify. Meanwhile, hydrogen peroxide is produced by utilizing electrolytic oxygen, so that the green and efficient treatment of pollutants is realized.
An electrolytic water-coupled sewage treatment system according to exemplary embodiments of the present utility model will be further described.
In a specific implementation, the first conveying pipe 4 conveys oxygen generated by electrolysis water to the coupling sewage treatment device, and the second conveying pipe 5 conveys hydrogen generated by electrolysis water to the hydrogen autotrophic denitrification biological membrane 11 of the coupling sewage treatment device.
In an embodiment of the utility model, the sewage treatment device further comprises a photovoltaic power generation device, wherein the photovoltaic power generation device is electrically connected with the water electrolysis device and the coupling sewage treatment device respectively. Specifically, the photovoltaic power generation device converts solar energy into electric energy, and the electric energy is regulated by the rectification controller 2 and then is transmitted to the water electrolysis device and the coupling sewage treatment device through the electric wire 3.
In one embodiment of the utility model, the cathode 8 of the coupling sewage treatment device is Cu-C 3 N 4 And the anode 9 of the coupling sewage treatment device is a graphene electrode. Specifically, O 2 Under the action of electric energy generated by photovoltaic, the catalyst electrode (Cu-C 3 N 4 Electrode) to H 2 O 2 . At H 2 O 2 Under the catalysis of copper atoms in the electrode, OH is generated, and can mineralize and degrade organic pollutants difficult to degrade, so that the deep removal of sewage is realized.
In one embodiment, the Cu-C 3 N 4 The preparation method of the electrode comprises the following steps: 10g of urea peroxide was placed in a three-port reaction flask, and 2g 1,4,8,11,15,18,22,25-octabutoxy-29H, 31H-copper (II) phthalocyanine complex was added thereto to give 2g of MoS 2 Adding the catalyst auxiliary agent into a reaction container, uniformly mixing, adding 150ml of N, N-Dimethylformamide (DMF) solvent, reacting for 8 hours under the protection of nitrogen in a constant-temperature water bath at 90 ℃ under the condition of continuous stirring (120 r/min), cooling to room temperature after the reaction is finished, and filtering and washing. Calcining the filtered product in two steps, introducing reducing gas, calcining at 400deg.C for 4 hr, carbonizing at 800deg.C for 2 hr, and cooling to room temperature to obtain Cu-C 3 N 4 An electrode material.
In an embodiment of the present utility model, the cathode 6 of the water electrolysis device is a metal platinum electrode, and the anode 7 of the water electrolysis device is a ruthenium iridium titanium anode. Specifically, the water electrolysis device generates H on the metal platinum electrode respectively 2 O generation on ruthenium iridium titanium anode 2 。
In one embodiment of the utility model, the cathode 8 of the coupled sewage treatment apparatus is provided with an oxygen permeable membrane. Specifically, O 2 The sewage enters the coupling sewage treatment device through the second conveying pipe 5 and the oxygen permeation membrane 13 for electrolysis to prepare H 2 O 2 And (5) coupling sewage treatment.
In one embodiment of the utility model, an exchange membrane 10 is arranged between the anode 7 and the cathode 6 of the water electrolysis device. Specifically, the exchange membrane 10 is a sulfonated tetrafluoroethylene-based fluoropolymer-copolymer membrane.
In an embodiment of the present utility model, the coupling sewage treatment device is provided with a water inlet 12 and a water outlet 13, the water inlet 12 is arranged at the bottom of the anode 9 of the coupling sewage treatment device, and the water outlet 13 is arranged at one side of the cathode 8 of the coupling sewage treatment device. Specifically, sewage enters from the bottom of the coupling sewage treatment device, and organic pollutants difficult to degrade in the sewage and OH are mineralized and degraded, so that deep removal is realized.
In an embodiment of the present utility model, the photovoltaic power generation device is provided with a distributed photovoltaic power generation panel 1 and a rectification controller 2, and the distributed photovoltaic power generation panel 1 and the rectification controller 2 are electrically connected.
In an embodiment of the present utility model, the photovoltaic power generation device is further provided with an electrical lead 3, and the electrical lead 3 is respectively connected with the distributed photovoltaic power generation panel 1, the rectifying controller 2, the cathode and anode of the water electrolysis device, and the cathode and anode of the coupled sewage treatment device. Specifically, the green renewable solar energy is converted into electric energy by using the distributed photovoltaic panel 1 to generate H 2 And O 2 Synchronizing O 2 Conversion to H under the action of catalytic electrodes 2 O 2 All electric energy is generated by the photovoltaic power generation device in the running process of the device, and the running cost is low. H produced by electrolysis of water 2 As electron donor of hydrogen autotrophic denitrification microorganism, NO in wastewater 3 - Reduction to N 2 The deep denitrification is realized under the condition of not adding a carbon source, and the emission of carbon dioxide in the denitrification process is reduced.
Working principle: when the sewage treatment system operates, solar energy is converted into electric energy through the distributed photovoltaic power generation panels 1 of the photovoltaic power generation device, and the electric energy is regulated by the rectification controller 2 and then is transmitted to the water electrolysis device and the coupling sewage treatment device through the electric wires 3. The water electrolysis device respectively generates H on the cathode 6 metal platinum electrode of the water electrolysis device 2 O is generated on 7 ruthenium iridium titanium anode of water electrolysis device 2 H produced 2 Introducing hydrogen autotrophic denitrification membrane biological membrane 11 through second conveying pipe 5 to release H 2 As electron donor of hydrogen autotrophic denitrification microorganism, NO in wastewater 3 - Reduction to N 2 The deep denitrification is realized, the hydrogen autotrophic denitrification microorganism is attached to the inside of the membrane, and the toxic action of oxide such as hydroxyl free radicals on the microorganism can be reduced. O produced 2 The hydrogen is fed into the electrolysis through the first conveying pipe 4 and the oxygen permeable membrane 13 to prepare H 2 O 2 Coupling sewage treatment device O 2 Electricity generated in photovoltaicsCan be used for coupling the Cu-C electrode of the cathode 9 catalytic electrode of the sewage treatment device 3 N 4 Conversion to H in the electrode 2 O 2 。H 2 O 2 Hydroxyl free radicals OH are generated under the catalysis of copper atoms in the electrode, and the OH can mineralize and degrade organic pollutants difficult to degrade, so that deep removal is realized. The coupled graphene electrode of the anode 8 of the sewage treatment device can be used for treating Cl in the wastewater to be treated under the condition of electrification - Oxidized into HClO, which has a certain degradation capability to pollutants. The wastewater to be treated enters through the water inlet 12 of the coupling sewage treatment device, and is discharged through the water outlet 14 of the coupling sewage treatment device after being treated.
While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the utility model.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.
The above-mentioned electrolytic water coupling sewage treatment system provided by the utility model has been described in detail, and specific examples are applied herein to illustrate the principles and embodiments of the utility model, and the above examples are only used to help understand the method and core ideas of the utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.
Claims (10)
1. The electrolytic water coupling sewage treatment system is characterized by comprising an electrolytic water device, a coupling sewage treatment device, a first conveying pipe and a second conveying pipe;
the input end of the first conveying pipe is connected with the water electrolysis device, the output end of the first conveying pipe is connected with the coupling sewage treatment device, the input end of the second conveying pipe is connected with the water electrolysis device, and the output end of the second conveying pipe is connected with the coupling sewage treatment device; the input end of the first conveying pipe is close to the anode of the water electrolysis device, the output end of the first conveying pipe is close to the anode of the coupling sewage treatment device, the input end of the second conveying pipe is close to the cathode of the water electrolysis device, the output end of the second conveying pipe is arranged between the cathode of the coupling sewage treatment device and the anode, and a hydrogen autotrophic denitrification biological film is arranged between the cathode of the coupling sewage treatment device and the anode;
when sewage treatment is carried out, oxygen generated by the anode of the water electrolysis device is conveyed to one side of the anode of the coupling sewage treatment device through the first conveying pipe; and hydrogen generated by the cathode of the water electrolysis device is conveyed to the hydrogen autotrophic denitrification biological membrane through the second conveying pipe.
2. The electrolyzed water coupled wastewater treatment system of claim 1, further comprising a photovoltaic power generation device electrically coupled to the electrolyzed water device and the coupled wastewater treatment device, respectively.
3. The electrolytic water coupled sewage treatment system according to claim 1, wherein the cathode of the coupled sewage treatment apparatus is Cu-C 3 N 4 An electrode for coupling sewage treatmentThe anode of the device is a graphene electrode.
4. The electrolyzed water coupled wastewater treatment system according to claim 1, wherein the cathode of the electrolyzed water apparatus is a metal platinum electrode and the anode of the electrolyzed water apparatus is a ruthenium iridium titanium anode.
5. The electrolyzed water coupled wastewater treatment system according to claim 1, wherein the anode of the coupled wastewater treatment plant is provided with an oxygen permeable membrane.
6. The electrolyzed water coupled wastewater treatment system of claim 1, wherein an exchange membrane is disposed between an anode and a cathode of the electrolyzed water apparatus.
7. The electrolyzed water coupled wastewater treatment system according to claim 6, wherein the exchange membrane is a sulfonated tetrafluoroethylene based fluoropolymer-copolymer membrane.
8. The electrolytic water coupling sewage treatment system according to claim 1, wherein the coupling sewage treatment device is provided with a water inlet and a water outlet, the water inlet is arranged at the bottom of the anode of the coupling sewage treatment device, and the water outlet is arranged at one side of the cathode of the coupling sewage treatment device.
9. The electrolyzed water coupled wastewater treatment system according to claim 2, wherein the photovoltaic power generation apparatus is provided with a distributed photovoltaic power generation panel and a rectification controller, the distributed photovoltaic power generation panel and the rectification controller being electrically connected.
10. The electrolyzed water coupled wastewater treatment system according to claim 9, wherein the photovoltaic power generation device is further provided with electrical leads, and the electrical leads are respectively connected with the distributed photovoltaic power generation panel, the rectifying controller, the cathode and anode of the electrolyzed water device, and the cathode and anode of the coupled wastewater treatment device.
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