CN113479968A - Photoelectric combined catalytic water purifier for aquatic product field - Google Patents
Photoelectric combined catalytic water purifier for aquatic product field Download PDFInfo
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- CN113479968A CN113479968A CN202110978810.4A CN202110978810A CN113479968A CN 113479968 A CN113479968 A CN 113479968A CN 202110978810 A CN202110978810 A CN 202110978810A CN 113479968 A CN113479968 A CN 113479968A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 35
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 28
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 27
- 230000005622 photoelectricity Effects 0.000 claims abstract description 12
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 35
- 239000010936 titanium Substances 0.000 claims description 34
- 229910052719 titanium Inorganic materials 0.000 claims description 34
- 239000007788 liquid Substances 0.000 claims description 12
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 11
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 229920001661 Chitosan Polymers 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- 235000006408 oxalic acid Nutrition 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000009958 sewing Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 20
- 241001465754 Metazoa Species 0.000 abstract description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 8
- 230000004083 survival effect Effects 0.000 abstract description 7
- 238000000746 purification Methods 0.000 abstract description 5
- 231100000419 toxicity Toxicity 0.000 abstract description 5
- 230000001988 toxicity Effects 0.000 abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 5
- 238000009360 aquaculture Methods 0.000 description 5
- 244000144974 aquaculture Species 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 208000005374 Poisoning Diseases 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 231100000572 poisoning Toxicity 0.000 description 2
- 230000000607 poisoning effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000384 rearing effect Effects 0.000 description 2
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 231100000171 higher toxicity Toxicity 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
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- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
- C02F1/325—Irradiation devices or lamp constructions
-
- 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
-
- 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
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—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
- 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
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- 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
- C02F2201/002—Construction details of the apparatus
-
- 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
- C02F2201/32—Details relating to UV-irradiation devices
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Catalysts (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention provides a photoelectric combined catalytic water purifier for the field of aquatic products, which relates to the technical field of aquatic products and comprises a shell, wherein a water inlet is formed in the lower end of the shell, a cover is arranged on the shell, and a water outlet is formed in the cover; a titanium dioxide catalysis electrode assembly is arranged in the shell and connected with a positive terminal; an ultraviolet lamp tube base is arranged on the cover and connected with a conductive metal cathode, and an ultraviolet lamp tube is arranged on the ultraviolet lamp tube base and extends downwards into the titanium dioxide catalytic electrode assembly. The photoelectricity combined catalysis water purifier has the beneficial effects that the water replacement-free normal-temperature long-term survival of aquatic animals can be realized, ammonia nitrogen in water is oxidized into nitrogen on the surface of the titanium dioxide catalysis electrode assembly and escapes, the pH value of the water body is gradually reduced, and the toxicity of residual ammonia nitrogen is reduced, so that the purification of ammonia nitrogen in water and the prolonging of the survival time of aquatic animals are realized.
Description
Technical Field
The invention relates to the technical field of aquatic products, in particular to a photoelectric combined catalytic water purifier.
Background
Aquatic products often go through a series of intermediate transfer processes from fishing to the shore to the hands of consumers, wherein temporary rearing in an aquatic product operating shop is the last link from the aquatic products to the hands of the consumers and is limited by the limited space and area of the aquatic product operating shop, aquatic animals are placed in a water tank with a small volume for sale, toxic ammonia nitrogen can be generated in the respiratory and metabolic processes of the aquatic animals, the ammonia nitrogen can generate nitrite with higher toxicity under the action of some microorganisms, and if the ammonia nitrogen and the nitrite are not timely converted, the aquatic animals face the risk of poisoning and death. The existing temporary aquaculture mainly depends on constant low temperature and water changing to maintain the survival of aquatic animals, the metabolic speed of the aquatic animals is slowed down through cooling, and further the ammonia nitrogen generation speed is reduced, so that the poisoning is delayed, even under the condition, the ammonia nitrogen and nitrite in water can be gradually accumulated, and therefore the water needs to be changed periodically. In this case, the constant low temperature consumes a large amount of electric power, and the frequent water change wastes water resources, even though the aquatic animals have a loss rate of about 10%, so the temporary rearing of aquatic products is expensive. Meanwhile, similar problems can be faced in industrial aquaculture of aquatic animals, the concentrations of ammonia nitrogen and nitrite in aquaculture tail water are too high, and serious harm can be caused to the environment due to direct discharge, so that the ammonia nitrogen and the nitrite in a water body need to be removed in a direct and rapid mode, and the problem can be faced in the breeding of ornamental fishes. The invention provides a water purification method of photoelectricity combined catalysis, a titanium dioxide catalysis electrode with photocatalysis activity is obtained through high-temperature roasting, a water purifier which is hollow inside and is provided with a water inlet and a water outlet is constructed, the titanium dioxide catalysis electrode, an ultraviolet lamp tube and a conductive metal cathode are installed inside the water purifier, voltage is applied to the titanium dioxide catalysis electrode and the conductive metal cathode, the ultraviolet lamp tube is opened, ammonia nitrogen in water can be subjected to oxidation reaction on the surface of the catalysis electrode and is converted into nitrogen to escape, meanwhile, the pH value of water is gradually reduced, the toxicity of residual ammonia nitrogen is further reduced, and therefore the purposes of purifying water quality and prolonging the survival of aquatic animals are achieved. In general, the present invention may implement: (1) the aquatic animals are temporarily cultured at normal temperature for a long time without changing water; (2) industrial aquaculture of aquatic animals; (3) and (5) feeding ornamental fishes.
Disclosure of Invention
The invention overcomes the defects in the prior art, provides a photoelectric combined catalytic water purifier for the aquatic product field, aims to realize the water replacement-free long-term survival of aquatic animals at normal temperature, constructs the water purifier, applies voltage on a positive terminal and a conductive metal negative electrode, turns on an ultraviolet lamp tube power supply, ammonia nitrogen in water can be oxidized into nitrogen and escapes from the surface of a titanium dioxide catalytic electrode assembly, the pH value of water body can be gradually reduced, and the toxicity of residual ammonia nitrogen is reduced, thereby realizing the purification of ammonia nitrogen in water and the prolonging of the survival time of aquatic animals.
In order to solve the technical problems, the invention is realized by the following technical scheme:
a photoelectric combined catalytic water purifier for the aquatic product field comprises a shell, wherein a water inlet is formed in the lower end of the shell, a cover is arranged on the shell, and a water outlet is formed in the cover; a titanium dioxide catalysis electrode assembly is arranged in the shell and connected with a positive terminal; an ultraviolet lamp tube base is arranged on the cover and connected with a conductive metal cathode, and an ultraviolet lamp tube is arranged on the ultraviolet lamp tube base and extends downwards into the titanium dioxide catalytic electrode assembly.
Furthermore, the conductive metal negative electrode is any one of a metal wire or a metal strip, penetrates through the ultraviolet lamp tube base, is installed in close contact with the ultraviolet lamp tube, and extends into the titanium dioxide catalysis electrode assembly.
Further, the case and the titania catalytic electrode assembly are provided in a hollow cylindrical shape or the like.
Furthermore, the cover is provided with an opening, and the positive terminal penetrates out of the opening upwards.
Furthermore, direct current voltage is applied to the positive terminal and the conductive metal negative electrode.
Furthermore, the photoelectric combined catalytic water purifier can be used singly, in series or in parallel.
Furthermore, the manufacturing process of the titanium dioxide catalytic electrode assembly comprises the steps of cleaning titanium metal, coating a catalytic active layer and roasting the electrode at high temperature.
Still further, the cleaning method of titanium metal comprises the following steps:
(1) cutting and sewing the titanium metal foil into a cylindrical surface or a similar shape, and reserving a positive terminal to form a titanium electrode primary forming piece;
(2) cleaning the preliminary formed part of the titanium electrode by oxalic acid aqueous solution with certain concentration under the action of ultrasonic waves, wherein the cleaning time is 5-60 min;
(3) washing the preliminary formed part of the titanium electrode by deionized water, and drying at normal temperature
(4) Cleaning the titanium electrode primary formed part by using an organic solvent, and then drying at normal temperature;
still further, the organic solvent includes, but is not limited to, absolute ethanol, absolute methanol, acetone, gasoline.
Still further, the coating method of the catalytically active layer comprises the following:
(1) adding nano titanium dioxide with the particle size of 10-50 nm into a 0.01-1.0% chitosan aqueous solution, and dispersing under the combined action of ultrasonic waves and stirring to obtain a nano titanium dioxide dispersion liquid;
(2) immersing the cleaned titanium electrode primary formed part into the nano titanium dioxide dispersion liquid, taking out the titanium electrode primary formed part, and draining the liquid to finish one-time coating, wherein the titanium electrode primary formed part can be coated more than once;
(3) after the liquid is fully dried, uniformly dispersing the nano titanium dioxide on the surface of the primary titanium electrode forming piece, and then roasting the primary titanium electrode forming piece in an electric furnace;
still further, the method of firing the electrode comprises the following:
(1) setting the temperature of the electric furnace at 300-700 ℃, and putting the coated titanium electrode primary formed part when the temperature of the electric furnace is raised to the set temperature;
(2) the roasting time is 0.5-12 h;
(3) and after the roasting is finished, taking out the electrode and cooling the electrode after the temperature of the electric furnace is reduced to the normal temperature to obtain the titanium dioxide catalytic electrode assembly.
Compared with the prior art, the invention has the beneficial effects that:
the photoelectricity combined catalysis water purifier can directly oxidize and remove ammonia nitrogen in water; reduce water pH, reduce the toxicity of residual ammonia nitrogen to aquatic livestock to can realize: (1) the aquatic animals are temporarily cultured at normal temperature for a long time without changing water; (2) industrial aquaculture of aquatic animals; (3) and (5) feeding ornamental fishes.
Drawings
FIG. 1 is a schematic structural view of a photoelectricity combined catalysis water purifier from an upper perspective;
FIG. 2 is a schematic view of the photoelectricity combined catalysis water purifier from the lower perspective;
FIG. 3 is a schematic structural view of the housing in a separated state from the titanium dioxide catalytic electrode assembly and other components;
fig. 4 is a schematic structural view of the titanium dioxide catalytic electrode assembly in a state of being separated from the cover and other components.
In the figure: the solar water heater comprises a shell, a water inlet 11, a cover 2, a water outlet 21, a hole 22, a titanium dioxide catalytic electrode assembly 3, a positive terminal 31, an ultraviolet lamp tube base 4, a conductive metal negative electrode 5 and an ultraviolet lamp tube 6.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1 to 4, a photoelectric combined catalytic water purifier for the aquatic product field comprises a housing 1, wherein a water inlet 11 is arranged at the lower end of the housing 1, a cover 2 is arranged on the housing 1, a water outlet 21 is arranged on the cover, a titanium dioxide catalytic electrode assembly 3 is arranged in the housing 1, and the titanium dioxide catalytic electrode assembly 3 is connected with a positive terminal 31; an ultraviolet lamp tube base 4 is arranged on the cover 2, the ultraviolet lamp tube base 4 is connected with a conductive metal cathode 5, an ultraviolet lamp tube 6 is arranged on the ultraviolet lamp tube base 4, the conductive metal cathode 5 is any one of a metal wire or a metal strip, in the installation process, the conductive metal cathode 5 penetrates through the ultraviolet lamp tube base 4 and is tightly attached to the ultraviolet lamp tube 6 to extend into the titanium dioxide catalysis electrode assembly 3, the ultraviolet lamp tube 6 also extends downwards into the titanium dioxide catalysis electrode assembly 3, and the power of the ultraviolet lamp tube is 5-50W.
The shell 1 and the titanium dioxide catalytic electrode assembly 3 are arranged into a hollow cylinder shape, and the cylinder shape has higher compressive strength, uniform stress and large water flow; be provided with trompil 22 on lid 2, when the assembly of titanium dioxide catalysis electrode subassembly 3 and lid, trompil 22 is up worn out to positive terminal 31, the use of being convenient for the wiring, adds 0.1 ~ 2.0V's direct current voltage on positive terminal 31 and the conductive metal negative pole 5, and positive terminal 31 and conductive metal negative pole 5 are the tie point as two electrodes.
The working principle of the photoelectric combined catalytic water purifier is as follows: the prepared titanium dioxide catalytic electrode assembly 3 is arranged in a shell 1, a cover 2 is covered, a positive terminal 31 is exposed, a 10W ultraviolet lamp tube 6 is arranged on an ultraviolet lamp tube base 4, an ultraviolet lamp tube base 4 is arranged on the cover 2, a conductive metal cathode 5 is arranged on the ultraviolet lamp tube base 4, a photoelectric combined catalytic water purifier is connected with a fresh water temporary culture pond through a water inlet 11 and a water outlet 21 (if the temporary culture pond water is fresh water, about 0.5 percent of sodium chloride is required to be added into the water to increase the water conductivity), a water pump is arranged on a connecting pipeline between the photoelectric combined catalytic water purifier and the fresh water temporary culture pond and used for pumping the water in the temporary culture pond into the photoelectric combined catalytic water purifier for reaction and then reflowing into the temporary culture pond to form water circulation, and then 1.2V direct current voltage is applied to the positive terminal 31 and the conductive metal cathode 5, the power supply of the ultraviolet lamp tube 6 is switched on, ammonia nitrogen in water pumped to the photoelectric combined catalysis water purifier can be oxidized into nitrogen on the surface of the titanium dioxide catalysis electrode assembly 3 and escapes, the pH value of the water body can be gradually reduced, and the toxicity of residual ammonia nitrogen is reduced, so that the purification of ammonia nitrogen in water and the prolonging of the survival time of aquatic animals are realized, and the water quality purification can be realized.
In the actual use process, the photoelectric combined catalytic water purifier can be used singly, in series or in parallel according to the actual requirement, and is not limited herein.
The manufacturing process of the titanium dioxide catalytic electrode assembly 3 comprises the following steps:
(1) cutting and sewing the titanium foil into a cylindrical surface, and reserving a positive terminal 31 to form a titanium electrode primary forming part;
(2) cleaning the preliminary formed part of the titanium electrode by oxalic acid aqueous solution with certain concentration under the action of ultrasonic waves, wherein the cleaning time is 30 min;
(3) washing the preliminary formed part of the titanium electrode by deionized water, and drying at normal temperature
(4) Cleaning the preliminary formed part of the titanium electrode by using absolute ethyl alcohol, and then drying at normal temperature;
(5) adding nano titanium dioxide with the particle size of 40nm into 0.5% chitosan water solution, and dispersing under the combined action of ultrasonic wave and stirring to obtain nano titanium dioxide dispersion liquid;
(6) soaking the cleaned titanium electrode primary formed part into the nano titanium dioxide dispersion liquid, taking out the titanium electrode primary formed part, draining the liquid, completing primary coating, performing 3 times of coating on the titanium electrode primary formed part, and uniformly dispersing the nano titanium dioxide on the surface of the titanium electrode primary formed part after the liquid is fully dried to obtain the coated titanium electrode primary formed part;
(7) setting the temperature of the electric furnace at 650 ℃, and placing the coated titanium electrode primary formed part when the temperature of the electric furnace is raised to the set temperature;
(8) the roasting time is 4.5 h;
(9) after the roasting is finished, the temperature of the electric furnace is reduced to normal temperature, the electrode is taken out and cooled, and the titanium dioxide catalytic electrode assembly 3 can be obtained.
Finally, it should be noted that: although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. A photoelectric combined catalytic water purifier for the aquatic product field is characterized by comprising a shell, wherein the lower end of the shell is provided with a water inlet, the shell is provided with a cover, and the cover is provided with a water outlet; a titanium dioxide catalysis electrode assembly is arranged in the shell and connected with a positive terminal; an ultraviolet lamp tube base is arranged on the cover and connected with a conductive metal cathode, and an ultraviolet lamp tube is arranged on the ultraviolet lamp tube base and extends downwards into the titanium dioxide catalytic electrode assembly.
2. The photoelectricity combined catalysis water purifier for the aquatic product field as claimed in claim 1, wherein the conductive metal negative electrode is any one of a metal wire or a metal strip, passes through the ultraviolet lamp tube base, is installed in close proximity to the ultraviolet lamp tube, and extends into the titanium dioxide catalysis electrode assembly.
3. The photoelectricity combined catalysis water purifier for the aquatic product field as claimed in claim 1 or 2, wherein the housing and the titanium dioxide catalysis electrode assembly are configured as a hollow cylinder or the like.
4. The photoelectricity combined catalysis water purifier for the aquatic product field as claimed in claim 1, wherein the cover is provided with an opening, and the positive terminal penetrates through the opening.
5. The photoelectricity combined catalysis water purifier for the aquatic product field as claimed in claim 1, wherein a direct current voltage is applied to the positive terminal and the conductive metal negative electrode.
6. The photoelectricity combined catalytic water purifier for the aquatic product field as claimed in claim 1, wherein the photoelectricity combined catalytic water purifier can be used as a single device, a plurality of devices connected in series or in parallel.
7. The photoelectricity combined catalysis water purifier for the aquatic product field as claimed in claim 1, wherein the manufacturing process of the titanium dioxide catalysis electrode component comprises the following steps:
(1) cutting and sewing the titanium metal foil into a cylindrical surface or a similar shape, and reserving a positive terminal to form a titanium electrode primary forming piece;
(2) cleaning the preliminary formed part of the titanium electrode by oxalic acid aqueous solution with certain concentration under the action of ultrasonic waves, wherein the cleaning time is 5-60 min;
(3) washing the preliminary formed part of the titanium electrode by deionized water, and drying at normal temperature
(4) Cleaning the titanium electrode primary formed part by using an organic solvent, and then drying at normal temperature;
(5) adding nano titanium dioxide with the particle size of 10-50 nm into a 0.01-1.0% chitosan aqueous solution, and dispersing under the combined action of ultrasonic waves and stirring to obtain a nano titanium dioxide dispersion liquid;
(6) immersing the cleaned titanium electrode primary formed part into the nano titanium dioxide dispersion liquid, taking out the titanium electrode primary formed part, and draining the liquid to finish one-time coating, wherein the titanium electrode primary formed part can be coated more than once;
(7) after the liquid is fully dried, uniformly dispersing the nano titanium dioxide on the surface of the titanium electrode primary formed part to obtain the titanium electrode primary formed part coated with the catalytic active layer on the surface;
(8) setting the temperature of the electric furnace at 300-700 ℃, and putting the coated titanium electrode primary formed part when the temperature of the electric furnace is raised to the set temperature;
(9) the roasting time is 0.5-12 h;
(10) and after the roasting is finished, taking out the electrode and cooling the electrode after the temperature of the electric furnace is reduced to the normal temperature to obtain the titanium dioxide catalytic electrode assembly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110978810.4A CN113479968A (en) | 2021-08-25 | 2021-08-25 | Photoelectric combined catalytic water purifier for aquatic product field |
| PCT/CN2021/120007 WO2023024205A1 (en) | 2021-08-25 | 2021-09-23 | Photoelectric co-catalysis water purifier for field of aquatic products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110978810.4A CN113479968A (en) | 2021-08-25 | 2021-08-25 | Photoelectric combined catalytic water purifier for aquatic product field |
Publications (1)
| Publication Number | Publication Date |
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| CN202110978810.4A Pending CN113479968A (en) | 2021-08-25 | 2021-08-25 | Photoelectric combined catalytic water purifier for aquatic product field |
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| WO (1) | WO2023024205A1 (en) |
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| US20110180423A1 (en) * | 2008-02-11 | 2011-07-28 | Wisconsin Alumni Research Foundation | Methods for removing contaminants from aqueous solutions using photoelectrocatalytic oxidization |
| US20090314711A1 (en) * | 2008-02-11 | 2009-12-24 | Barry Terence P | PHOTOELECTROCATALYTIC OXIDIZER DEVICE HAVING COMPOSITE NANOPOROUS TiO2 COATED Ti PHOTOANODE AND METHOD OF REMOVING AMMONIA FROM WATER IN AQUARIA AND RECIRCULATION AQUACULTURE SYSTEMS |
| CN208120794U (en) * | 2018-02-05 | 2018-11-20 | 厦门理工学院 | A kind of cylinder deflector type photoelectrocatalysis wastewater treatment equipment |
| KR102234996B1 (en) * | 2018-11-29 | 2021-04-01 | 포항공과대학교 산학협력단 | Photoelectrochemical water treatment apparutus and water treatment method using the same |
| CN209522633U (en) * | 2018-12-04 | 2019-10-22 | 圭瑞测试科技(北京)有限公司 | A kind of photoelectricity Fenton reactor |
| CN110514716B (en) * | 2019-09-09 | 2022-06-28 | 山东省农业科学院农业质量标准与检测技术研究所 | Preparation method of current type aptamer sensor for detecting pesticide residue |
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