WO2023024205A1 - Photoelectric co-catalysis water purifier for field of aquatic products - Google Patents

Photoelectric co-catalysis water purifier for field of aquatic products Download PDF

Info

Publication number
WO2023024205A1
WO2023024205A1 PCT/CN2021/120007 CN2021120007W WO2023024205A1 WO 2023024205 A1 WO2023024205 A1 WO 2023024205A1 CN 2021120007 W CN2021120007 W CN 2021120007W WO 2023024205 A1 WO2023024205 A1 WO 2023024205A1
Authority
WO
WIPO (PCT)
Prior art keywords
titanium dioxide
electrode
titanium
ultraviolet lamp
water purifier
Prior art date
Application number
PCT/CN2021/120007
Other languages
French (fr)
Chinese (zh)
Inventor
李亚武
Original Assignee
鱼多康(广州)生物科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 鱼多康(广州)生物科技有限公司 filed Critical 鱼多康(广州)生物科技有限公司
Publication of WO2023024205A1 publication Critical patent/WO2023024205A1/en

Links

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
    • C02F1/30—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

Definitions

  • the invention relates to the technical field of aquatic products, in particular to a photoelectric combined catalytic water purifier.
  • Aquatic products often go through a series of intermediate transshipment processes from fishing to consumers. Temporary raising in aquatic product stores is the last link for aquatic products to reach consumers, which is limited by the limited space and area of aquatic product stores. , Aquatic animals are placed in small water tanks waiting to be sold, because aquatic animals will produce toxic ammonia nitrogen during respiration and metabolism, ammonia nitrogen will produce more toxic nitrite under the action of some microorganisms, if the ammonia nitrogen is not released in time and nitrite, then aquatic animals will face the risk of poisoning and death.
  • the current temporary breeding of aquatic products mainly relies on constant low temperature and water change to maintain the survival of aquatic animals.
  • the present invention proposes a photoelectric combined catalysis method for purifying water.
  • a titanium dioxide catalytic electrode with photocatalytic activity is obtained by high-temperature roasting, and a water purifier with a hollow interior and a water inlet and a water outlet is constructed.
  • the titanium dioxide catalytic electrode, an ultraviolet lamp And the conductive metal negative electrode is installed inside the water purifier, apply voltage to the titanium dioxide catalytic electrode and the conductive metal negative electrode, turn on the ultraviolet lamp, the ammonia nitrogen in the water can be oxidized on the surface of the catalytic electrode and converted into nitrogen to escape, and at the same time the pH of the water body It will also gradually decrease, further reducing the toxicity of residual ammonia nitrogen, so as to purify water quality and prolong the survival of aquatic animals.
  • the present invention can realize: (1) long-term temporary breeding of aquatic animals at room temperature without changing water; (2) factory culture of aquatic animals; (3) breeding of ornamental fish.
  • the present invention overcomes the shortcomings in the prior art and provides a photoelectric combined catalytic water purifier used in the field of aquatic products.
  • a photoelectric combined catalytic water purifier used in the field of aquatic products comprising a housing, the lower end of the housing is provided with a water inlet, the housing is provided with a cover, and the cover is provided with a water outlet; the housing is provided with A titanium dioxide catalytic electrode assembly, the titanium dioxide catalytic electrode assembly is connected with a positive terminal; the cover is provided with an ultraviolet lamp base, and the ultraviolet lamp base is connected with a conductive metal negative electrode, and the ultraviolet lamp base is An ultraviolet lamp tube is provided, and the ultraviolet lamp tube extends downwards into the titanium dioxide catalytic electrode assembly.
  • the conductive metal negative electrode is any one of metal wire or metal strip, passes through the base of the ultraviolet lamp tube, is installed close to the ultraviolet lamp tube, and extends into the titanium dioxide catalytic electrode assembly.
  • the shell and the titanium dioxide catalytic electrode assembly are arranged in a hollow cylinder or similar shape.
  • an opening is provided on the cover, and the positive pole terminal passes through the opening upwards.
  • a DC voltage is applied to the positive terminal and the conductive metal negative electrode.
  • the photoelectric combined catalytic water purifier can be used as a single unit, multiple units in series or in parallel.
  • the manufacturing process of the titanium dioxide catalytic electrode assembly includes cleaning of titanium metal, coating of the catalytic active layer and high-temperature calcination of the electrode.
  • the cleaning method of the titanium metal comprises the following:
  • the organic solvent includes but not limited to absolute ethanol, absolute methanol, acetone, gasoline.
  • the coating method of the catalytically active layer comprises the following:
  • nano-titanium dioxide with a particle size of 10-50 nm into 0.01-1.0% chitosan aqueous solution, and dispersing under the joint action of ultrasonic waves and stirring to obtain a nano-titanium dioxide dispersion;
  • nano-titanium dioxide is uniformly dispersed on the surface of the titanium electrode preliminary molding, and then the titanium electrode preliminary molding is put into an electric furnace for roasting;
  • the firing method of the electrode includes the following:
  • the direct oxidation and removal of ammonia nitrogen in the water can be achieved; the pH of the water body can be reduced, and the toxicity of residual ammonia nitrogen to aquatic animals can be reduced, so that: (1) long-term temporary maintenance of aquatic animals without changing water at room temperature ; (2) factory farming of aquatic animals; (3) breeding of ornamental fish.
  • Fig. 1 is a structural schematic diagram of a photoelectric combined catalytic water purifier viewed from an upper perspective;
  • Fig. 2 is a structural schematic view of the photoelectric combined catalytic water purifier viewed from the bottom;
  • Fig. 3 is a schematic diagram of the structure of the shell, the titanium dioxide catalytic electrode assembly and other parts in a separated state;
  • Fig. 4 is a structural schematic diagram of a titanium dioxide catalytic electrode assembly in a state of being separated from a cover and other components.
  • a photoelectric combined catalytic water purifier used in the field of aquatic products includes a housing 1, the lower end of the housing 1 is provided with a water inlet 11, the housing 1 is provided with a cover 2, and the cover is provided with an outlet A nozzle 21, a titanium dioxide catalytic electrode assembly 3 is provided in the casing 1, and the titanium dioxide catalytic electrode assembly 3 is connected to a positive electrode terminal 31; the cover 2 is provided with an ultraviolet lamp base 4, and the ultraviolet lamp base 4 is connected to a conductive metal negative electrode 5 , the ultraviolet lamp base 4 is provided with an ultraviolet lamp 6, and the conductive metal negative electrode 5 is any one of a metal wire or a metal strip.
  • the ultraviolet lamp tube 6 is installed and extends into the titanium dioxide catalytic electrode assembly 3, and the ultraviolet lamp tube 6 also extends downward into the titanium dioxide catalytic electrode assembly 3, and the power of the ultraviolet lamp tube is 5-50W.
  • the casing 1 and the titanium dioxide catalytic electrode assembly 3 are arranged in a hollow cylindrical shape, which is designed to have higher compressive strength, uniform force, and large water flow; the cover 2 is provided with an opening 22, and the titanium dioxide catalytic electrode assembly 3 and During the assembly of the cover, the positive pole terminal 31 passes through the opening 22, which is convenient for wiring.
  • the positive pole terminal 31 and the conductive metal negative pole 5 are provided with a DC voltage of 0.1-2.0V, and the positive pole terminal 31 and the conductive metal negative pole 5 is the junction of the two electrodes.
  • the working principle of the photoelectric combined catalytic water purifier is: install the prepared titanium dioxide catalytic electrode assembly 3 in the shell 1, cover the cover 2, expose the positive terminal 31, install the 10W ultraviolet lamp 6 in the ultraviolet lamp on the base 4, and the ultraviolet lamp base 4 is installed on the cover 2, the conductive metal negative electrode 5 is installed on the ultraviolet lamp base 4, and the photoelectric combined catalytic water purifier and the water purifier are connected through the water inlet 11 and the water outlet 21
  • the fresh water holding pool is connected (if the water in the holding pool is fresh water, you need to add about 0.5% sodium chloride in the water to increase the conductivity of the water body), and the connecting pipe between the photoelectric combined catalytic water purifier and the fresh water holding pool is set
  • a water pump which is used to pump the water in the holding pool to the photoelectric combined catalytic water purifier for reaction, and then return it to the holding pool to form a water cycle, and then apply a 1.2V DC voltage to the positive pole terminal 31 and the conductive metal negative pole 5 , turn on the power
  • the photoelectric combined catalytic water purifier can be used as a single use, multiple series or parallel use according to actual needs, which is not limited here.
  • the manufacturing process of titanium dioxide catalytic electrode assembly 3 comprises the following:

Landscapes

  • 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 present invention relates to the technical field of aquatic products, and provides a photoelectric co-catalysis water purifier for the field of aquatic products, comprising a housing. The lower end of the housing is provided with a water inlet; the housing is provided with a cover; the cover is provided with a water outlet; a titanium dioxide catalytic electrode assembly is provided in the housing; a positive terminal is connected to the titanium dioxide catalytic electrode assembly; the cover is provided with an ultraviolet lamp tube base; a conductive metal negative electrode is connected to the ultraviolet lamp tube base; the ultraviolet lamp tube base is provided with an ultraviolet lamp tube; and the ultraviolet lamp tube extends downwards into the titanium dioxide catalytic electrode assembly. The photoelectric co-catalysis water purifier has the beneficial effects that aquatic animals can survive for a long time at room temperature without changing water, ammonia nitrogen in water is oxidized into nitrogen on the surface of the titanium dioxide catalytic electrode assembly and overflows, the pH value of a water body can also gradually reduce, and the toxicity of residual ammonia nitrogen is reduced, such that ammonia nitrogen in water is purified, and the survival time of the aquatic animals is prolonged.

Description

一种用于水产领域的光电联合催化净水器A photoelectric combined catalytic water purifier used in the field of aquatic products 技术领域technical field
本发明涉及水产技术领域，尤其是一种光电联合催化净水器。The invention relates to the technical field of aquatic products, in particular to a photoelectric combined catalytic water purifier.
背景技术Background technique
水产品从捕捞上岸到消费者手中，往往要经历一系列中间转运过程，其中在水产经营店的暂养是水产品到消费者手中的最后一个环节，受限于水产经营店有限的空间和面积，水产动物被放置在体积狭小的水箱中等待销售，由于水产动物呼吸和代谢过程中会产生有毒的氨氮，氨氮在一些微生物的作用下会产生毒性更大的亚硝酸盐，如果不及时将氨氮和亚硝酸盐转化掉，那么水产动物将会面临中毒死亡的风险。目前的水产暂养主要依靠恒低温和换水的方式维持水产动物的存活，通过降温来减缓水产动物的代谢速度，进而降低其氨氮产生速度，从而延缓其中毒，即便在此情况下，水中氨氮和亚硝酸盐也会逐渐累积，因此需要定期换水。在这种情况下，恒低温消耗大量电能，频繁换水对水资源造成浪费，即便如此，水产动物也会有大约10％的损耗率，因此水产暂养成本高昂。与此同时，水产动物的工厂化养殖也会面临类似的问题，养殖尾水氨氮、亚硝酸盐浓度过高，直接排放会对环境造成严重危害，因此需要直接、快速的方式去除水体氨氮和亚硝酸盐，并且观赏鱼的饲养也会面临这一问题。本发明提出一种光电联合催化的净水方法，通过高温焙烧得到具有光催化活性的二氧化钛催化电极，构建内部中空且带有进水口和出水口的净水器，将二氧化钛催化电极、紫外灯管和导电金属负极安装在净水器内部，在二氧化钛催化电极和导电金属负极上加电压，打开紫外灯管，水中的氨氮即可在催化电极表面发生氧化反应并转化成氮气逸出，同时水体pH也会逐渐降低，进一步降低残余氨氮的毒性，从而起到净化水质、延长水产动物存活的目的。总体而言，本发明可实现：(1)水产动物的免换水常温长期暂养；(2)水产动物的工厂化养殖；(3)观赏鱼的饲养。Aquatic products often go through a series of intermediate transshipment processes from fishing to consumers. Temporary raising in aquatic product stores is the last link for aquatic products to reach consumers, which is limited by the limited space and area of aquatic product stores. , Aquatic animals are placed in small water tanks waiting to be sold, because aquatic animals will produce toxic ammonia nitrogen during respiration and metabolism, ammonia nitrogen will produce more toxic nitrite under the action of some microorganisms, if the ammonia nitrogen is not released in time and nitrite, then aquatic animals will face the risk of poisoning and death. The current temporary breeding of aquatic products mainly relies on constant low temperature and water change to maintain the survival of aquatic animals. By cooling down, the metabolic rate of aquatic animals is slowed down, thereby reducing the rate of ammonia nitrogen production, thereby delaying poisoning. Even in this case, ammonia nitrogen in water And nitrites will also gradually accumulate, so regular water changes are required. In this case, constant low temperature consumes a lot of electric energy, and frequent water changes cause waste of water resources. Even so, aquatic animals will have a loss rate of about 10%, so the cost of aquatic temporary maintenance is high. At the same time, the factory farming of aquatic animals will also face similar problems. The concentration of ammonia nitrogen and nitrite in the tail water of the breeding is too high, and direct discharge will cause serious harm to the environment. Therefore, it is necessary to remove ammonia nitrogen and nitrite from water directly and quickly Nitrate, and the breeding of ornamental fish will also face this problem. The present invention proposes a photoelectric combined catalysis method for purifying water. A titanium dioxide catalytic electrode with photocatalytic activity is obtained by high-temperature roasting, and a water purifier with a hollow interior and a water inlet and a water outlet is constructed. The titanium dioxide catalytic electrode, an ultraviolet lamp And the conductive metal negative electrode is installed inside the water purifier, apply voltage to the titanium dioxide catalytic electrode and the conductive metal negative electrode, turn on the ultraviolet lamp, the ammonia nitrogen in the water can be oxidized on the surface of the catalytic electrode and converted into nitrogen to escape, and at the same time the pH of the water body It will also gradually decrease, further reducing the toxicity of residual ammonia nitrogen, so as to purify water quality and prolong the survival of aquatic animals. In general, the present invention can realize: (1) long-term temporary breeding of aquatic animals at room temperature without changing water; (2) factory culture of aquatic animals; (3) breeding of ornamental fish.
发明内容Contents of the invention
本发明克服了现有技术中的缺点，提供一种用于水产领域的光电联合催化净水器，目的在于实现水产动物的免换水常温长期存活，构建净水器，在正极接线柱和导电金属负极上加电压，打开紫外灯管电源，水中氨氮即可在二氧化钛催化电极组件表面被氧化成氮气并逸出，水体pH也会逐渐下降，并减小残余氨氮的毒性，从而实现水中氨氮的净化以及水产动物存活时间的延长。The present invention overcomes the shortcomings in the prior art and provides a photoelectric combined catalytic water purifier used in the field of aquatic products. Apply voltage to the metal negative electrode, turn on the power supply of the ultraviolet lamp, the ammonia nitrogen in the water can be oxidized to nitrogen on the surface of the titanium dioxide catalytic electrode assembly and escape, the pH of the water body will also gradually decrease, and the toxicity of the residual ammonia nitrogen will be reduced, so as to realize the ammonia nitrogen in the water Purification and prolongation of the survival time of aquatic animals.
为了解决上述技术问题，本发明是通过以下技术方案实现的：In order to solve the above technical problems, the present invention is achieved through the following technical solutions:
一种用于水产领域的光电联合催化净水器，包括外壳，所述外壳的下端设置有进水口， 所述外壳上设置有盖子，所述盖子上设置有出水口；所述外壳内设置有二氧化钛催化电极组件，所述二氧化钛催化电极组件连接有正极接线柱；所述盖子上设置有紫外灯管基座，所述紫外灯管基座连接有导电金属负极，所述紫外灯管基座上设置有紫外灯管，所述紫外灯管往下延伸至所述二氧化钛催化电极组件内。A photoelectric combined catalytic water purifier used in the field of aquatic products, comprising a housing, the lower end of the housing is provided with a water inlet, the housing is provided with a cover, and the cover is provided with a water outlet; the housing is provided with A titanium dioxide catalytic electrode assembly, the titanium dioxide catalytic electrode assembly is connected with a positive terminal; the cover is provided with an ultraviolet lamp base, and the ultraviolet lamp base is connected with a conductive metal negative electrode, and the ultraviolet lamp base is An ultraviolet lamp tube is provided, and the ultraviolet lamp tube extends downwards into the titanium dioxide catalytic electrode assembly.
更进一步地，所述导电金属负极为金属丝或金属条中任意一种，穿过所述紫外灯管基座，紧贴所述紫外灯管安装，延伸至所述二氧化钛催化电极组件内。Furthermore, the conductive metal negative electrode is any one of metal wire or metal strip, passes through the base of the ultraviolet lamp tube, is installed close to the ultraviolet lamp tube, and extends into the titanium dioxide catalytic electrode assembly.
更进一步地，所述外壳以及二氧化钛催化电极组件设置成中空圆筒状或类似形状。Furthermore, the shell and the titanium dioxide catalytic electrode assembly are arranged in a hollow cylinder or similar shape.
更进一步地，所述盖子上设置有开孔，所述正极接线柱往上穿出所述开孔。Furthermore, an opening is provided on the cover, and the positive pole terminal passes through the opening upwards.
更进一步地，所述正极接线柱与导电金属负极上加直流电压。Furthermore, a DC voltage is applied to the positive terminal and the conductive metal negative electrode.
更进一步地，所述光电联合催化净水器能作为单个使用、多个串联或并联使用。Furthermore, the photoelectric combined catalytic water purifier can be used as a single unit, multiple units in series or in parallel.
更进一步地，所述二氧化钛催化电极组件的制作工艺包括钛金属的清洗、催化活性层的涂覆和电极的高温焙烧。Furthermore, the manufacturing process of the titanium dioxide catalytic electrode assembly includes cleaning of titanium metal, coating of the catalytic active layer and high-temperature calcination of the electrode.
更进一步地，所述钛金属的清洗方法包括以下：Further, the cleaning method of the titanium metal comprises the following:
(1)将钛金属箔裁剪并缝合成圆柱面或类似形状，留出正极接线柱，形成钛电极初步成型件；(1) Cut and sew the titanium metal foil into a cylindrical surface or a similar shape, leaving the positive pole terminal to form a preliminary molded titanium electrode;
(2)用一定浓度的草酸水溶液，在超声波作用下对钛电极初步成型件进行清洗，清洗时间在5～60min；(2) Use a certain concentration of oxalic acid aqueous solution to clean the preliminary formed parts of the titanium electrode under the action of ultrasonic waves, and the cleaning time is 5 to 60 minutes;
(3)用去离子水清洗钛电极初步成型件，随后常温干燥(3) Clean the preliminary formed part of the titanium electrode with deionized water, and then dry it at room temperature
(4)用有机溶剂清洗钛电极初步成型件，随后常温干燥；(4) cleaning the titanium electrode preliminary molding with an organic solvent, followed by drying at normal temperature;
更进一步地，所述有机溶剂包括但不限于无水乙醇、无水甲醇、丙酮、汽油。Furthermore, the organic solvent includes but not limited to absolute ethanol, absolute methanol, acetone, gasoline.
更进一步地，所述催化活性层的涂覆方法包括以下：Further, the coating method of the catalytically active layer comprises the following:
(1)将粒径10～50nm的纳米二氧化钛加入0.01～1.0％的壳聚糖水溶液，在超声波和搅拌的共同作用下进行分散，得到纳米二氧化钛分散液；(1) adding nano-titanium dioxide with a particle size of 10-50 nm into 0.01-1.0% chitosan aqueous solution, and dispersing under the joint action of ultrasonic waves and stirring to obtain a nano-titanium dioxide dispersion;
(2)将清洗完毕的钛电极初步成型件浸入上述纳米二氧化钛分散液并取出沥干液体，完成一次涂覆，钛电极初步成型件可进行不止一次涂覆；(2) Immerse the cleaned titanium electrode preliminary molding into the above-mentioned nano-titanium dioxide dispersion and take out the drained liquid to complete one coating, and the titanium electrode preliminary molding can be coated more than once;
(3)待液体充分干燥，纳米二氧化钛在钛电极初步成型件表面均匀分散，然后将钛电极初步成型件放入电炉中焙烧；(3) After the liquid is fully dried, nano-titanium dioxide is uniformly dispersed on the surface of the titanium electrode preliminary molding, and then the titanium electrode preliminary molding is put into an electric furnace for roasting;
更进一步地，所述电极的焙烧方法包括以下：Further, the firing method of the electrode includes the following:
(1)将电炉温度设在300～700℃，待电炉温度升高到设定温度，放入涂覆完毕的钛电极初步成型件；(1) Set the temperature of the electric furnace at 300-700°C, wait for the temperature of the electric furnace to rise to the set temperature, and put in the coated titanium electrode preliminary molding;
(2)焙烧时间0.5～12h；(2) Roasting time 0.5 ~ 12h;
(3)焙烧完毕，待电炉温度降至常温，取出电极并冷却，即可得到二氧化钛催化电极组件。(3) After the roasting is completed, after the temperature of the electric furnace drops to normal temperature, the electrode is taken out and cooled to obtain the titanium dioxide catalytic electrode assembly.
与现有技术相比，本发明的有益效果是：Compared with prior art, the beneficial effect of the present invention is:
通过采用本光电联合催化净水器能将水中氨氮的直接氧化和脱除；降低水体pH，降低残余氨氮对水产动物的毒性，从而可以实现：(1)水产动物的免换水常温长期暂养；(2)水产动物的工厂化养殖；(3)观赏鱼的饲养。By adopting the photoelectric combined catalytic water purifier, the direct oxidation and removal of ammonia nitrogen in the water can be achieved; the pH of the water body can be reduced, and the toxicity of residual ammonia nitrogen to aquatic animals can be reduced, so that: (1) long-term temporary maintenance of aquatic animals without changing water at room temperature ; (2) factory farming of aquatic animals; (3) breeding of ornamental fish.
附图说明Description of drawings
图1是光电联合催化净水器从上方角度看的结构示意图；Fig. 1 is a structural schematic diagram of a photoelectric combined catalytic water purifier viewed from an upper perspective;
图2是光电联合催化净水器从下方角度看的结构示意图；Fig. 2 is a structural schematic view of the photoelectric combined catalytic water purifier viewed from the bottom;
图3是外壳与二氧化钛催化电极组件及其他部件处于分离状态的结构示意图；Fig. 3 is a schematic diagram of the structure of the shell, the titanium dioxide catalytic electrode assembly and other parts in a separated state;
图4是二氧化钛催化电极组件与盖子及其他部件处于分离状态的结构示意图。Fig. 4 is a structural schematic diagram of a titanium dioxide catalytic electrode assembly in a state of being separated from a cover and other components.
图中：1-外壳，11-进水口，2-盖子，21-出水口，22-开孔，3-二氧化钛催化电极组件，31-正极接线柱，4-紫外灯管基座，5-导电金属负极，6-紫外灯管。In the figure: 1-housing, 11-water inlet, 2-cover, 21-water outlet, 22-opening, 3-titanium dioxide catalytic electrode assembly, 31-positive terminal, 4-ultraviolet lamp base, 5-conduction Metal negative electrode, 6-ultraviolet lamp tube.
具体实施方式Detailed ways
以下结合附图对本发明的优选实施例进行说明，应当理解，此处所描述的优选实施例仅用于说明和解释本发明，并不用于限定本发明。The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
如图1至图4所示，一种用于水产领域的光电联合催化净水器，包括外壳1，外壳1的下端设置有进水口11，外壳1上设置有盖子2，盖子上设置有出水口21，外壳1内设置有二氧化钛催化电极组件3，二氧化钛催化电极组件3连接有正极接线柱31；盖子2上设置有紫外灯管基座4，紫外灯管基座4连接有导电金属负极5，紫外灯管基座4上设置有紫外灯管6，导电金属负极5为金属丝或金属条中任意一种，在安装过程中，导电金属负极5穿过紫外灯管基座4，紧贴紫外灯管6安装延伸至二氧化钛催化电极组件3内，紫外灯管6也同样是往下延伸至二氧化钛催化电极组件3内，紫外灯管的功率为5～50W。As shown in Figures 1 to 4, a photoelectric combined catalytic water purifier used in the field of aquatic products includes a housing 1, the lower end of the housing 1 is provided with a water inlet 11, the housing 1 is provided with a cover 2, and the cover is provided with an outlet A nozzle 21, a titanium dioxide catalytic electrode assembly 3 is provided in the casing 1, and the titanium dioxide catalytic electrode assembly 3 is connected to a positive electrode terminal 31; the cover 2 is provided with an ultraviolet lamp base 4, and the ultraviolet lamp base 4 is connected to a conductive metal negative electrode 5 , the ultraviolet lamp base 4 is provided with an ultraviolet lamp 6, and the conductive metal negative electrode 5 is any one of a metal wire or a metal strip. The ultraviolet lamp tube 6 is installed and extends into the titanium dioxide catalytic electrode assembly 3, and the ultraviolet lamp tube 6 also extends downward into the titanium dioxide catalytic electrode assembly 3, and the power of the ultraviolet lamp tube is 5-50W.
外壳1以及二氧化钛催化电极组件3设置成中空圆筒状，此圆筒状设计抗压强度更高，受力均匀，水流量大；盖子2上设置有开孔22，在二氧化钛催化电极组件3与盖子的装配时，正极接线柱31往上穿出开孔22，便于接线使用，正极接线柱31与导电金属负极5上是加0.1～2.0V的直流电压，正极接线柱31与导电金属负极5是作为两个电极的连接点。The casing 1 and the titanium dioxide catalytic electrode assembly 3 are arranged in a hollow cylindrical shape, which is designed to have higher compressive strength, uniform force, and large water flow; the cover 2 is provided with an opening 22, and the titanium dioxide catalytic electrode assembly 3 and During the assembly of the cover, the positive pole terminal 31 passes through the opening 22, which is convenient for wiring. The positive pole terminal 31 and the conductive metal negative pole 5 are provided with a DC voltage of 0.1-2.0V, and the positive pole terminal 31 and the conductive metal negative pole 5 is the junction of the two electrodes.
本光电联合催化净水器的工作原理是：将制备好的二氧化钛催化电极组件3安装在外壳1内，盖上盖子2，露出正极接线柱31，将10W的紫外灯管6安装在紫外灯管基座4上，并 将紫外灯管基座4安装在盖子2上，将导电金属负极5安装在紫外灯管基座4上，通过进水口11和出水口21将光电联合催化净水器和淡水暂养池相连(如果暂养池水为淡水，则需要在水中加入0.5％左右的氯化钠，以增加水体导电性)，光电联合催化净水器与淡水暂养池之间的连接管道上设置有水泵，用于将暂养池中的水抽取至光电联合催化净水器中反应，然后回流至暂养池中形成水循环，接着在正极接线柱31和导电金属负极5上加1.2V直流电压，接通紫外灯管6电源，抽取至光电联合催化净水器的水中氨氮即可在二氧化钛催化电极组件3表面被氧化成氮气并逸出，水体pH也会逐渐下降，并减小残余氨氮的毒性，从而实现水中氨氮的净化以及水产动物存活时间的延长，即可实现水质净化。The working principle of the photoelectric combined catalytic water purifier is: install the prepared titanium dioxide catalytic electrode assembly 3 in the shell 1, cover the cover 2, expose the positive terminal 31, install the 10W ultraviolet lamp 6 in the ultraviolet lamp on the base 4, and the ultraviolet lamp base 4 is installed on the cover 2, the conductive metal negative electrode 5 is installed on the ultraviolet lamp base 4, and the photoelectric combined catalytic water purifier and the water purifier are connected through the water inlet 11 and the water outlet 21 The fresh water holding pool is connected (if the water in the holding pool is fresh water, you need to add about 0.5% sodium chloride in the water to increase the conductivity of the water body), and the connecting pipe between the photoelectric combined catalytic water purifier and the fresh water holding pool is set There is a water pump, which is used to pump the water in the holding pool to the photoelectric combined catalytic water purifier for reaction, and then return it to the holding pool to form a water cycle, and then apply a 1.2V DC voltage to the positive pole terminal 31 and the conductive metal negative pole 5 , turn on the power supply of the ultraviolet lamp 6, and the ammonia nitrogen in the water extracted to the photoelectric combined catalytic water purifier can be oxidized into nitrogen on the surface of the titanium dioxide catalytic electrode assembly 3 and escape, the pH of the water body will also gradually decrease, and reduce the residual ammonia nitrogen. Toxicity, so as to realize the purification of ammonia nitrogen in the water and prolong the survival time of aquatic animals, so as to realize the purification of water quality.
在实际使用过程中，光电联合催化净水器可以根据实际需求能作为单个使用、多个串联或并联使用，此处不作限定。In actual use, the photoelectric combined catalytic water purifier can be used as a single use, multiple series or parallel use according to actual needs, which is not limited here.
二氧化钛催化电极组件3的制作工艺包括以下：The manufacturing process of titanium dioxide catalytic electrode assembly 3 comprises the following:
(1)将钛箔裁剪并缝合成圆柱面，留出正极接线柱31，形成钛电极初步成型件；(1) Cut and sew the titanium foil into a cylindrical surface, leaving the positive terminal 31 to form a preliminary molded part of the titanium electrode;
(2)用一定浓度的草酸水溶液，在超声波作用下对钛电极初步成型件进行清洗，清洗时间在30min；(2) Use a certain concentration of oxalic acid aqueous solution to clean the preliminary formed parts of the titanium electrode under the action of ultrasonic waves, and the cleaning time is 30 minutes;
(3)用去离子水清洗钛电极初步成型件，随后常温干燥(3) Clean the preliminary formed part of the titanium electrode with deionized water, and then dry it at room temperature
(4)用无水乙醇清洗钛电极初步成型件，随后常温干燥；(4) Clean the titanium electrode preliminary molding with absolute ethanol, then dry at normal temperature;
(5)将粒径40nm的纳米二氧化钛加入0.5％的壳聚糖水溶液，在超声波和搅拌的共同作用下进行分散，得到纳米二氧化钛分散液；(5) adding 0.5% chitosan aqueous solution to nano-titanium dioxide with a particle diameter of 40 nm, and dispersing under the joint action of ultrasonic waves and stirring to obtain a nano-titanium dioxide dispersion;
(6)将清洗完毕的钛电极初步成型件浸入上述纳米二氧化钛分散液并取出沥干液体，完成一次涂覆，钛电极初步成型件共进行3次涂覆，待液体充分干燥，纳米二氧化钛在钛电极初步成型件表面均匀分散，得到涂覆完毕的钛电极初步成型件；(6) Immerse the cleaned titanium electrode preliminary molding into the above-mentioned nano-titanium dioxide dispersion and take out the drained liquid to complete one coating. The titanium electrode preliminary molding is coated 3 times in total. The surface of the preliminary formed part of the electrode is uniformly dispersed to obtain the preliminary formed part of the coated titanium electrode;
(7)将电炉温度设在650℃，待电炉温度升高到设定温度，放入涂覆完毕的钛电极初步成型件；(7) Set the temperature of the electric furnace at 650°C, and when the temperature of the electric furnace rises to the set temperature, put in the coated titanium electrode preliminary molding;
(8)焙烧时间4.5h；(8) Roasting time 4.5h;
(9)焙烧完毕，待电炉温度降至常温，取出电极并冷却，即可得到二氧化钛催化电极组件3。(9) After the calcination is completed, wait until the temperature of the electric furnace drops to normal temperature, take out the electrode and cool it down, and then the titanium dioxide catalytic electrode assembly 3 can be obtained.
最后应说明的是：以上仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换，但是凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。Finally, it should be noted that the above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still understand the foregoing The technical solutions recorded in each embodiment are modified, or some of the technical features are equivalently replaced, but within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included in the present invention within the scope of protection.

Claims (7)

  1. 一种用于水产领域的光电联合催化净水器，其特征在于，包括外壳，所述外壳的下端设置有进水口，所述外壳上设置有盖子，所述盖子上设置有出水口；所述外壳内设置有二氧化钛催化电极组件，所述二氧化钛催化电极组件连接有正极接线柱；所述盖子上设置有紫外灯管基座，所述紫外灯管基座连接有导电金属负极，所述紫外灯管基座上设置有紫外灯管，所述紫外灯管往下延伸至所述二氧化钛催化电极组件内。A photoelectric combined catalytic water purifier used in the field of aquatic products is characterized in that it includes a casing, the lower end of the casing is provided with a water inlet, the casing is provided with a cover, and the cover is provided with a water outlet; A titanium dioxide catalytic electrode assembly is provided inside the housing, and the titanium dioxide catalytic electrode assembly is connected to a positive terminal; the cover is provided with a base of an ultraviolet lamp, and the base of the ultraviolet lamp is connected to a negative electrode of a conductive metal. An ultraviolet lamp tube is arranged on the tube base, and the ultraviolet lamp tube extends downwards into the titanium dioxide catalytic electrode assembly.
  2. 根据权利要求1所述的一种用于水产领域的光电联合催化净水器，其特征在于，所述导电金属负极为金属丝或金属条中任意一种，穿过所述紫外灯管基座，紧贴所述紫外灯管安装，延伸至所述二氧化钛催化电极组件内。A photoelectric combined catalytic water purifier used in the field of aquatic products according to claim 1, wherein the conductive metal negative electrode is any one of a metal wire or a metal strip, passing through the base of the ultraviolet lamp tube , installed close to the ultraviolet lamp tube, extending into the titanium dioxide catalytic electrode assembly.
  3. 根据权利要求1或2所述的一种用于水产领域的光电联合催化净水器，其特征在于，所述外壳以及二氧化钛催化电极组件设置成中空圆筒状或类似形状。A photoelectric combined catalytic water purifier used in the aquatic industry according to claim 1 or 2, characterized in that the housing and the titanium dioxide catalytic electrode assembly are arranged in a hollow cylinder or similar shape.
  4. 根据权利要求1所述的一种用于水产领域的光电联合催化净水器，其特征在于，所述盖子上设置有开孔，所述正极接线柱往上穿出所述开孔。The photoelectric combined catalytic water purifier used in the field of aquatic products according to claim 1, characterized in that, the cover is provided with an opening, and the positive pole terminal goes upward through the opening.
  5. 根据权利要求1所述的一种用于水产领域的光电联合催化净水器，其特征在于，所述正极接线柱与导电金属负极上加直流电压。The photoelectric combined catalytic water purifier used in the field of aquatic products according to claim 1, wherein a DC voltage is applied to the positive electrode terminal and the conductive metal negative electrode.
  6. 根据权利要求1所述的一种用于水产领域的光电联合催化净水器，其特征在于，所述光电联合催化净水器能作为单个使用、多个串联或并联使用。The photoelectric combined catalytic water purifier used in the field of aquatic products according to claim 1, characterized in that, the photoelectric combined catalytic water purifier can be used as a single unit, multiple series or parallel units.
  7. 根据权利要求1所述的一种用于水产领域的光电联合催化净水器，其特征在于，所述二氧化钛催化电极组件的制作工艺包括以下：A photoelectric combined catalytic water purifier used in the field of aquatic products according to claim 1, wherein the manufacturing process of the titanium dioxide catalytic electrode assembly comprises the following:
    (1)将钛金属箔裁剪并缝合成圆柱面或类似形状，留出正极接线柱，形成钛电极初步成型件；(1) Cut and sew the titanium metal foil into a cylindrical surface or a similar shape, leaving the positive pole terminal to form a preliminary molded titanium electrode;
    (2)用一定浓度的草酸水溶液，在超声波作用下对钛电极初步成型件进行清洗，清洗时间在5～60min；(2) Use a certain concentration of oxalic acid aqueous solution to clean the preliminary formed parts of the titanium electrode under the action of ultrasonic waves, and the cleaning time is 5 to 60 minutes;
    (3)用去离子水清洗钛电极初步成型件，随后常温干燥(3) Clean the preliminary formed part of the titanium electrode with deionized water, and then dry it at room temperature
    (4)用有机溶剂清洗钛电极初步成型件，随后常温干燥；(4) cleaning the titanium electrode preliminary molding with an organic solvent, followed by drying at normal temperature;
    (5)将粒径10～50nm的纳米二氧化钛加入0.01～1.0％的壳聚糖水溶液，在超声波和搅拌的共同作用下进行分散，得到纳米二氧化钛分散液；(5) adding nano-titanium dioxide with a particle size of 10-50 nm into 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;
    (6)将清洗完毕的钛电极初步成型件浸入上述纳米二氧化钛分散液并取出沥干液体，完成一次涂覆，钛电极初步成型件可进行不止一次涂覆；(6) Immerse the cleaned titanium electrode preliminary molding into the above-mentioned nano-titanium dioxide dispersion and take out the drained liquid to complete one coating, and the titanium electrode preliminary molding can be coated more than once;
    (7)待液体充分干燥，纳米二氧化钛在钛电极初步成型件表面均匀分散，即得到表面涂覆了催化活性层的钛电极初步成型件；(7) When the liquid is fully dried, the nano-titanium dioxide is evenly dispersed on the surface of the titanium electrode preliminary molding, that is, the titanium electrode preliminary molding whose surface is coated with a catalytic active layer is obtained;
    (8)将电炉温度设在300～700℃，待电炉温度升高到设定温度，放入涂覆完毕的钛电极初步成型件；(8) Set the temperature of the electric furnace at 300-700°C, wait for the temperature of the electric furnace to rise to the set temperature, and put the coated titanium electrode preliminary molding;
    (9)焙烧时间0.5～12h；(9) Roasting time 0.5 ~ 12h;
    (10)焙烧完毕，待电炉温度降至常温，取出电极并冷却，即可得到二氧化钛催化电极组件。(10) After the calcination is completed, wait for the temperature of the electric furnace to drop to normal temperature, take out the electrode and cool it down, and then the titanium dioxide catalytic electrode assembly can be obtained.
PCT/CN2021/120007 2021-08-25 2021-09-23 Photoelectric co-catalysis water purifier for field of aquatic products WO2023024205A1 (en)

Applications Claiming Priority (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
CN202110978810.4 2021-08-25

Publications (1)

Publication Number Publication Date
WO2023024205A1 true WO2023024205A1 (en) 2023-03-02

Family

ID=77946157

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/120007 WO2023024205A1 (en) 2021-08-25 2021-09-23 Photoelectric co-catalysis water purifier for field of aquatic products

Country Status (2)

Country Link
CN (1) CN113479968A (en)
WO (1) WO2023024205A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US20110180423A1 (en) * 2008-02-11 2011-07-28 Wisconsin Alumni Research Foundation Methods for removing contaminants from aqueous solutions using photoelectrocatalytic oxidization
CN208120794U (en) * 2018-02-05 2018-11-20 厦门理工学院 A kind of cylinder deflector type photoelectrocatalysis wastewater treatment equipment
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
CN110514716A (en) * 2019-09-09 2019-11-29 山东省农业科学院农业质量标准与检测技术研究所 For detecting the preparation method of the current type aptamer sensor of pesticide residue
KR20200064878A (en) * 2018-11-29 2020-06-08 포항공과대학교 산학협력단 Photoelectrochemical water treatment apparutus and water treatment method using the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US20110180423A1 (en) * 2008-02-11 2011-07-28 Wisconsin Alumni Research Foundation Methods for removing contaminants from aqueous solutions using photoelectrocatalytic oxidization
CN208120794U (en) * 2018-02-05 2018-11-20 厦门理工学院 A kind of cylinder deflector type photoelectrocatalysis wastewater treatment equipment
KR20200064878A (en) * 2018-11-29 2020-06-08 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
CN110514716A (en) * 2019-09-09 2019-11-29 山东省农业科学院农业质量标准与检测技术研究所 For detecting the preparation method of the current type aptamer sensor of pesticide residue

Also Published As

Publication number Publication date
CN113479968A (en) 2021-10-08

Similar Documents

Publication Publication Date Title
CN203302157U (en) Novel culture pond for aquatic products
CN203173894U (en) Self-cleaning overflowing type bactericidal water tank
CN101475282B (en) Photocatalysis-plant cooperated water purifying method for pisciculture water
WO2023024205A1 (en) Photoelectric co-catalysis water purifier for field of aquatic products
CN104437033B (en) A kind of for the innoxious integrated odor removal that focuses on place of animal
CN207948479U (en) One kind being convenient for clean livestock and poultry cultivation house
CN101703793A (en) Large flux nanocrystalline photocatalysis air purifying device
CN215905893U (en) Photoelectric combined catalytic water purifier for aquatic product field
CN211412967U (en) Device for surface treatment of bolt products
CN113651395A (en) Preparation method of electrode for photoelectric combined catalytic water purifier in aquatic product field
CN206447696U (en) A kind of cooling-tower circulating water filter
CN205305751U (en) Fresh and alive aquatic food transport means
CN101500349A (en) Metal electric heating tube
CN205294926U (en) Constant voltage electrolysis silver ion purifies rivers device
CN203370556U (en) Artificial hair chemical crosslinking reaction kettle
CN207845160U (en) A kind of ozone generator device for peculiar smell removal
CN208732769U (en) A kind of industrial pure water filter device
CN207950975U (en) A kind of rotary kiln flue sulfur-reducing dust removal device
CN110801040A (en) Passion fruit belt cleaning device
CN108373970B (en) Biogas preparation system
CN215962960U (en) Novel bio-organic fertilizer tail gas treatment device
CN204607660U (en) A kind of compound resin filter cartridge construction
CN204684942U (en) A kind of exhaust treatment system
CN103406123A (en) Preparation method and application of bamboo charcoal-loaded zinc oxide copper-doped composite catalyst material
CN209376481U (en) Low water level difference energy-saving aquaculture system

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21954726

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE