CN213141505U - Device for environment-friendly disinfection and sterilization of epidemic prevention equipment and public space - Google Patents
Device for environment-friendly disinfection and sterilization of epidemic prevention equipment and public space Download PDFInfo
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- CN213141505U CN213141505U CN202021320473.7U CN202021320473U CN213141505U CN 213141505 U CN213141505 U CN 213141505U CN 202021320473 U CN202021320473 U CN 202021320473U CN 213141505 U CN213141505 U CN 213141505U
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Abstract
The utility model discloses a device that carries out environment-friendly disinfection and isolation to epidemic prevention equipment and public space, including O2 generating device, gas flowmeter, O3 generating device, micro-nano bubble generator, the bin, the pump, electrocatalytic oxidation device and collecting box, this device has combined ozone micro-nano bubble technique and electrocatalytic oxidation technique to produce the strong oxidizing property solution that contains high concentration hydroxyl free radical, can carry out high-efficient and disinfection and isolation with environmental protection to the public space that epidemic prevention article after the use and flow of people are big, and make when ozone indissolvable in water exists in the aquatic with micro-nano bubble form, can improve its content in water and save time by a wide margin. The solution finally produced by the technology contains high-concentration ozone micro-nano bubbles, hydroxyl radicals and hydrogen peroxide, has a very high killing effect on microorganisms such as bacteria and viruses, can be used for sewage and wastewater treatment, and has a good application prospect in environment-friendly sterilization and disinfection of epidemic prevention equipment and various public spaces.
Description
Technical Field
The utility model belongs to the technical field of senior oxidation, concretely relates to novel strong oxidizing property disinfection solution production device that disinfects.
Background
With the development of industry, the discharge amount of domestic wastewater and industrial wastewater is rapidly increasing. In order to save production cost, some enterprises and factories do not depend on national laws and regulations, and untreated wastewater is directly discharged into rivers and lakes to cause large-area water body pollution. "Green water Qingshan is Jinshan Yinshan", and sewage treatment can not relax all the time. There is a need to simplify the complexity and save the cost of sewage treatment.
The existing sewage treatment technologies mainly comprise a physical method, a chemical treatment technology and a biological treatment technology. The physical method mainly adopts a membrane separation technology, including ultrafiltration, microfiltration, reverse osmosis, nanofiltration and the like, and mainly utilizes the osmosis of the membrane to separate, purify and enrich the micropollutants in the wastewater so as to achieve the purpose of separating the micropollutants from the wastewater. The chemical treatment technology is complex in operation, and a certain amount of reducing agent needs to be added and used, and the principle is that a certain amount of chemical substances are dissolved in sewage, so that organic substances in the sewage react with the chemical substances, and pollutants in the sewage are removed. This treatment technique has high requirements on the composition of the water and must be able to react with the reducing agent. The biological treatment technology is that organic matters contained in sewage are combined with bacteria to form colloid, and then the relevant sewage is comprehensively filtered and precipitated to realize solid-liquid separation, so that the sewage finally reaches the standard of reuse. The advanced oxidation method is also called advanced oxidation technology or deep oxidation technology, and is a chemical treatment technology with more thorough treatment effect. The technology is characterized in that OH with strong oxidizing property can be generated, and macromolecular organic matters which are difficult to degrade by other treatment technologies are thoroughly oxidized into low-toxicity or non-toxic micromolecular substances under the reaction conditions of high temperature, high pressure, electricity, sound, light irradiation, catalysts and the like.
The prior advanced oxidation technology mainly comprises ozone oxidation, ozone catalysis technology, O3/H2O2 water treatment technology and electrochemical advanced oxidation technology. The ozone oxidation technology for removing organic matters is mainly divided into two ways of direct oxidation and indirect oxidation, the oxidation-reduction potential of ozone is 2.07V, and organic pollutants can be directly oxidized and degraded; ozone can form strong oxidizing OH in water, which oxidizes and decomposes most organic pollutants into small molecular substances. The ozone catalysis technology means that ozone can generate OH in an aqueous solution under the action of a catalyst, so that organic pollutants can be removed indiscriminately. The O3/H2O2 water treatment technology mainly generates strong oxidizing OH through a series of chain reactions between O3 and H2O2, so that organic matters in wastewater can be effectively degraded, and organic pollutants are mineralized into CO2 and H2O. The electrochemical water treatment technology can generate OH with strong oxidizing property, can effectively mineralize organic matters, has attracted wide attention in the treatment of organic wastewater difficult to degrade and the removal of biological toxicity, and is a high-efficiency treatment technology of the wastewater difficult to degrade.
The micro-nano bubbles have the characteristics of large specific surface area, strong adsorbability, spontaneous generation of active oxygen radicals and the like, show excellent performance in the aspect of sewage treatment, are widely accepted by the same lines at present as a new water treatment technology, and show good development and application prospects. The common industrial techniques for producing micro-nano bubbles include ultrasonic cavitation, mechanical shearing, venturi tube method, etc.
In view of the fact that a large-scale sewage treatment device is often introduced in the traditional sewage treatment, the occupied area is large, and the cost is high. In addition, a large amount of chemical reagents are often used in sewage treatment, which causes secondary pollution. Therefore, it is necessary to design a new strong oxidizing solution production device to pretreat wastewater and sewage, reduce the complexity of subsequent operations and reduce the overall treatment cost. The utility model discloses utilize micro-nano bubble technique to combine electrochemical catalytic oxidation technique, contain high concentration OH in the solution of producing, the strong oxidizing property of this solution can carry out oxidative degradation preliminary treatment to waste water sewage more high-efficiently to can carry out disinfection and sterilization to pathogenic microorganisms such as the bacterium virus that contains in the waste water, also can disinfect and sterilize the object surface through the spraying form. The disinfection and sterilization device is particularly suitable for treating medical wastes and medical waste water, so that the medical wastes and the medical waste water are prevented from becoming secondary infection sources.
Disclosure of Invention
The utility model discloses to the complicated and higher problem of cost of current sewage waste water treatment process, a novel strong oxidizing property disinfection solution apparatus for producing that disinfects is one kind and equips and carry out environment-friendly disinfection and isolation's device with public space to the epidemic prevention promptly, combine together micro-nano bubble technique and electrocatalytic oxidation technique, and this utility model provides an electrocatalytic oxidation device can promote ozone transformation to OH high-efficiently, make ozone full play effect, obtain extremely strong solution of oxidizing property, and then this technique can be used for fields such as sewage waste water treatment and disinfection and isolation. Because O3 is insoluble in water, O3 is injected into water in the form of micro-nano bubbles, so that the storage time of O3 in an aqueous solution is prolonged. When micro-nano bubbles generated by the micro-nano bubble generator are broken, OH can be generated; the anode matrix of the electrocatalytic oxidation device can catalyze O3 released by the rupture of ozone micro bubbles to generate OH under the electrochemical action, oxide nanoparticles embedded on a nanofiber membrane wrapped on the surface of the matrix can play a role in heterogeneous catalysis on O3, and the anode can also be electrolyzed to decompose water molecules to generate OH; the cathode of the electrocatalytic oxidation device is subjected to reduction reaction, O2 in the solution and O2 released by O2 micron bubbles are subjected to electron reduction to obtain H2O2, and the H2O2 catalyzes O3 to generate OH; because the stability of the nano bubbles is better, the nano bubbles in the finally obtained solution can gradually shrink to further separate out O3, so that the oxidation effect is exerted, and the utilization rate of O3 is improved. In addition, because O3 is insoluble in water, if ozone with high concentration diffuses into the air, it can cause damage to human health. The utility model discloses well adoption U-shaped pipe design, and then form the liquid seal, can prevent during ozone loss to the air.
The utility model adopts the technical proposal that: an environment-friendly disinfection and sterilization device for epidemic prevention equipment and public space comprises an O2 generating device, a gas flowmeter, an O3 generating device, a micro-nano bubble generator, a storage tank, a pump, an electrocatalytic oxidation device and a collection box; oxygen generated by the O2 generating device enters the ozone generating device through a gas transmission pipeline through a gas flowmeter to obtain mixed gas with a small amount of ozone mixed in the oxygen; the mixed gas enters through an air inlet of the micro-nano bubble generator, and meanwhile, the liquid is simply filtered at a water inlet of the micro-nano bubble generator, so that large particles above a millimeter level are removed, the micro-nano bubble generator is prevented from being damaged, and therefore the solution containing oxygen micro-nano bubbles and ozone micro-nano bubbles is generated; the solution enters a storage tank after circulating for several minutes, is conveyed to an electrocatalytic oxidation device again through a pump and stays for dozens of minutes, so that more ozone is efficiently converted into OH; due to the liquid sealing effect of the mixed solution outlet U-shaped pipe, the redundant oxygen enters the next working cycle through the O2 discharge port; and finally, conveying the solution in the electrocatalytic oxidation device to a collecting box from a mixed solution outlet through a pump, and finally storing the solution at low temperature in a dark place. In addition, all gas and liquid pipeline connections in the device need to be added with sealing parts, so that gas and liquid loss is avoided, pressure loss is reduced, and the solution is transmitted to the collection box without damage and with high efficiency.
The utility model relates to a device for carrying out environment-friendly disinfection and sterilization on epidemic prevention equipment and public space, wherein an O2 generating device can be a high-pressure oxygen bottle or an oxygenerator and other similar equipment.
The utility model relates to a device for carrying out environment-friendly disinfection and sterilization on epidemic prevention equipment and public space, a gas flowmeter of the device can be an oxygen flowmeter and also can be an air or other oxidability or inert gas flowmeter. If a non-oxygen flow meter is adopted, the reading on the flow meter needs to be converted so as to obtain the accurate oxygen flow.
The utility model relates to a device for carrying out environment-friendly disinfection and sterilization on epidemic prevention equipment and public space, an ozone generating device of the device can be divided into a high-voltage discharge type, an ultraviolet irradiation type or an electrolytic type according to an ozone production mode. The high-voltage discharge type ozone generator has the advantages of mature technology, stable work, long service life, high ozone yield and the like, and is widely used in China. The utility model adopts a high-voltage discharge type ozone generator. In addition, the model of the ozone generator is selected according to different purposes, and for air disinfection, the mass of ozone in ozone water per cubic meter is 20-50 mg; for the disinfection of the surface of an object, the mass of ozone in ozone water per cubic meter is more than 10 g; for sewage and wastewater treatment, the mass of ozone in each cubic meter of ozone water is more than 100 g.
The utility model relates to a device for carrying out environment-friendly disinfection and sterilization to epidemic prevention equipment and public space, its micro-nano bubble generating device can divide into venturi method, ultrasonic cavitation method and mechanical shearing method according to theory of operation. The mechanical shearing method has low cost and high production efficiency, and is widely applied in the industry. The utility model discloses a micro-nano bubble generator of mechanical shearing method produces micro-nano bubble solution. The mechanical shearing method is characterized in that when gas is introduced into liquid, large bubbles are generated in the liquid due to the existence of gas-liquid two phases, and the large bubbles are stirred and sheared at high speed through blades, threads and other parts, so that micro-nano bubbles are formed. Compared with large bubbles with the size of millimeter or more, the ozone can stay for a longer time when existing in the solution in the form of micro-nano bubbles, so that the ozone content in the solution and the utilization rate of the ozone are improved.
The utility model relates to a device that carries out environment-friendly disinfection and isolation to epidemic prevention equipment and public space, its micro-nano bubble generator's water inlet adopts the design of U-shaped pipe, adopts the liquid seal form, avoids in the unnecessary ozone direct leakage air from the water inlet after equipment shuts down. After a certain time of shutdown, the ozone will gradually decompose into oxygen, so that the gas discharged finally is only oxygen. In addition, a filter screen or a microfiltration membrane is added at the water inlet, so that the damage to equipment caused by the fact that large particles above a millimeter level enter the micro-nano bubble generator is avoided.
The utility model relates to a device for carrying out environment-friendly disinfection and sterilization on epidemic prevention equipment and public space, the outer shell material of its electrocatalytic oxidation device can be quartz glass, pottery or plastics etc. that do not electrically conduct to need to have certain corrosion resistance to ozone. Wherein the anode can be shaped like flat plate, column, sphere, etc.; the anode substrate can be Pt, Ti, boron-doped diamond film and the like; coating a layer of nanofiber membrane on the surface of a substrate; a large number of nano oxide particles are embedded on the nano fiber membrane; the particles may be oxides of metals such as Ti, Mn, Ce, Cu, Fe, Ni, Sn, Sb, Pb, etc., or composites of the above metal oxides. The cathode of the device consists of a current collector and a carbon active substance, wherein the current collector can be a net structure with good conductivity, such as a stainless steel net, a carbon cloth, a nickel net and the like, and the carbon active substance can be conductive carbon powder, such as activated carbon, carbon black, graphene and the like. In the electrocatalytic oxidation device, an anode matrix is Ti, and the surface of the anode matrix is coated with a TiO2 nanofiber membrane; the cathode is a Ti grid carbon black-polytetrafluoroethylene electrode; in addition, the mixed solution outlet at the upper end of the electrocatalytic oxidation device is a U-shaped pipe, which plays a role of liquid seal, and the redundant oxygen enters the next working cycle through an O2 discharge port.
The utility model relates to a device for carrying out environment-friendly disinfection and sterilization on epidemic prevention equipment and public space, the distance between a positive electrode and a negative electrode in an electrocatalytic oxidation device is 1cm-5cm, and the current density is 10-50mA/cm 2.
The utility model relates to a device for environment-friendly disinfection and sterilization of epidemic prevention equipment and public space, the metal anode of the electrocatalytic oxidation device can catalyze ozone to generate OH under the electrochemical action, TiO2 nano particles embedded on a nano-scale fiber membrane can play a role of heterogeneous catalysis on ozone, and in addition, the anode can also generate electrolysis to decompose water molecules to generate OH; the cathode of the electrocatalytic oxidation device is subjected to reduction reaction, O2 obtains electrons and is reduced into H2O2, and H2O2 catalyzes ozone to generate OH; the solution finally obtained contains high-concentration OH, so that the solution has strong oxidizing property.
The utility model relates to a device that carries out environment-friendly disinfection and isolation to epidemic prevention equipment and public space, wherein TiO2 nanofiber membrane can adopt solution electrostatic spinning method preparation, and this nanofiber membrane must be hydrophilic, can avoid a large amount of micro-nano bubbles to adhere to nanofiber membrane surface like this. One preparation method is to dissolve polyvinyl alcohol and polyacrylonitrile in Dimethylformamide (DMF), add TiO2 nano particles into the solution, and stir the nano particles evenly to obtain a spinning solution.
The utility model relates to a device that carries out environment-friendly disinfection and isolation to epidemic prevention equipment and public space, its hydrophilicity TiO2 nanofiber membrane can adopt solution electrostatic spinning technique to prepare, and concrete process is as follows:
firstly, preparing a spinning solution, and uniformly stirring the spinning solution as much as possible;
secondly, putting the spinning solution into an injector of electrostatic spinning equipment, applying an electric field between a metal needle of the injector and a receiving plate, applying positive voltage on the spinning needle, and grounding the receiving plate;
and thirdly, controlling the movement of the receiving plate to deposit the nano fibers in a certain area, and finally cutting different shapes and sizes according to the requirements.
The utility model relates to a device that carries out environment-friendly disinfection and isolation to epidemic prevention equipment and public space, its bin and collecting box material can be for ethylene, polytetrafluoroethylene, chlorinated polyvinyl chloride, glass and inconel etc. have corrosion resistance and resistant strong oxidation to ozone.
The utility model relates to a device for carrying out environment-friendly disinfection and sterilization to epidemic prevention equipment and public space, its corresponding operation method is:
firstly, opening an O2 generating device and an O3 generating device, supplying water from a water inlet of a micro-nano bubble generator, and starting to produce a micro-nano bubble solution;
secondly, circulating the micro-nano bubble solution for about 3-10 minutes, and discharging the micro-nano bubble solution to a storage tank;
thirdly, conveying the micro-nano bubble solution in the storage tank to an electrocatalytic oxidation device for electrocatalytic oxidation for about 10-40 minutes;
and fourthly, discharging the solution in the electrocatalytic oxidation device to a collection device, storing the solution at low temperature in a dark place after the solution is fully collected, keeping away from a fire source or static electricity, and preventing violent vibration during transportation.
Compared with the prior art, the utility model has the advantages that:
1. the utility model combines the micro-nano bubble technology and the electrocatalytic oxidation technology; because the ozone is insoluble in water, the ozone exists in the water in the form of micro-nano bubbles, the storage time is prolonged, and the utilization efficiency of the ozone is improved; in addition, when micro-nano bubbles generated by the micro-nano bubble generator are broken, OH can be generated; a large amount of economic cost is saved;
2. the utility model designs an electrocatalytic oxidation device, more ozone is converted to OH more efficiently at the negative and positive poles, and the oxidability of the solution is enhanced to a great extent. The anode matrix of the electrocatalytic oxidation device can catalyze O3 released by the rupture of ozone micro bubbles to generate OH under the electrochemical action, oxide nanoparticles embedded on a nanofiber membrane wrapped on the surface of the matrix can play a role in heterogeneous catalysis on O3, and the anode can also be electrolyzed to decompose water molecules to generate OH; the cathode is carbon black-polytetrafluoroethylene titanium grid with hydrogen peroxide generation activity, reduction reaction is carried out on the cathode, O2 in the solution and O2 released by O2 micron bubbles are subjected to electron reduction to form H2O2, and H2O2 catalyzes O3 to generate OH.
3. The strong oxidizing property of hydrogen peroxide or hydroxyl free radicals ensures that the hydrogen peroxide or hydroxyl free radicals have excellent disinfection and sterilization capability; meanwhile, the oxidation by-product is mainly water, and the method has the characteristic of environmental protection. The water solution rich in hydrogen peroxide or hydroxyl free radicals can be used for disinfection and sterilization of epidemic prevention equipment such as masks, protective glasses, protective clothing and the like in a soaking or washing mode; and can also be used for disinfecting and sterilizing public areas with large personnel flow, such as hospitals, schools, stations, restaurants, supermarkets and the like in a spray mode. The solution spray can kill most viruses in the air and on the surface of objects, and greatly reduces the possibility of virus transmission and personnel cross infection.
Drawings
FIG. 1 is a schematic view of an apparatus for environment-friendly disinfection and sterilization of epidemic prevention equipment and public spaces.
FIG. 2 is a schematic diagram of the structure of an electrocatalytic oxidation unit.
In the figure: 1-O2 generation device; 2-a gas flow meter; a 3-O3 generating device; 4-micro-nano bubble generator; 5-a storage tank; 6-a pump; 7-electrocatalytic oxidation device; 8, a collecting box; 9-an electrocatalytic device cathode; 10-an anode substrate; 11-nanofiber membrane.
Detailed Description
The utility model relates to a novel strong oxidation solution production device, as shown in figure 1, which comprises an O2 generating device 1, a gas flowmeter 2, an O3 generating device 3, a micro-nano bubble generator 4, a storage tank 5, a pump 6, an electrocatalytic oxidation device 7 and a collecting box 8, wherein the O2 generating device 1 is connected with the O3 generating device 3 through the flowmeter 2, the O3 generating device 3 is connected with an air inlet of the micro-nano bubble generator, meanwhile, liquid is conveyed through a water inlet of the micro-nano bubble generator, the obtained micro-nano bubble solution is firstly stored in the storage box 5, then enters the electrocatalytic oxidation device 7 through the conveying of the pump 6, and after a period of electrocatalytic oxidation, redundant gas enters the next circulation through an O2 discharge port, and the obtained strong oxidation solution enters the collection box 8 through the conveying of the mixed solution outlet through the pump 6, and finally is stored in a low-temperature light-proof manner.
The utility model relates to a device for carrying out environment-friendly disinfection and sterilization on epidemic prevention equipment and public space, the outer shell material of its electrocatalytic oxidation device 7 can be quartz glass, pottery or plastics etc. that do not electrically conduct to need to have certain corrosion resistance to ozone. Wherein the anode can be shaped like flat plate, column, sphere, etc.; the anode substrate 10 can be Pt, Ti, boron-doped diamond film and the like; coating a layer of nanofiber membrane 11 on the surface of the substrate; a large number of nano oxide particles are embedded on the nano fiber membrane; the particles may be oxides of metals such as Ti, Mn, Ce, Cu, Fe, Ni, Sn, Sb, Pb, etc., or composites of the above metal oxides. The cathode 9 of the electro-catalytic device consists of a current collector and a carbon active substance, wherein the current collector can be a net structure with good conductivity, such as a stainless steel net, a carbon cloth, a nickel net and the like, and the carbon active substance can be conductive carbon powder, such as activated carbon, carbon black, graphene and the like. In the electrocatalytic oxidation device, an anode matrix 10 is Ti, and the surface of the anode matrix is coated with a TiO2 nanofiber membrane 11; the cathode 9 of the electro-catalytic device is a Ti grid carbon black-polytetrafluoroethylene electrode shown in figure 2; in addition, the mixed solution outlet at the upper end of the electrocatalytic oxidation device is a U-shaped pipe, which plays a role of liquid seal, and the redundant oxygen enters the next working cycle through an O2 discharge port.
Example 1: the device is used for producing strong oxidation solution to disinfect air. And (2) introducing 20-50mg of ozone into the micro-nano bubble generator per hour, introducing 1-2m3 of tap water or purified water per hour, circulating the obtained micro-nano bubble solution for 5 minutes, conveying the micro-nano bubble solution to a storage tank, conveying the micro-nano bubble solution into an electrocatalytic oxidation device through a pump, carrying out electrocatalytic oxidation for 10-20 minutes, and conveying the finally obtained strong oxidative solution to a collection box through the pump. The strong oxidizing solution in the collecting box is sprayed out by the spraying device arranged on the mobile robot, so that large-area spaces such as station halls, hospitals, theaters, schools, supermarkets and the like are sterilized and disinfected. Or a large amount of protective articles are disinfected and sterilized in batch in a container.
Example 2: the device is used for carrying out oxidative decomposition on organic matters in the sewage and the wastewater. The method comprises the steps of introducing 300g of 100-3 g of ozone into a micro-nano bubble generator per hour, introducing 1-3m3 of sewage per hour, circulating the obtained micro-nano bubble solution for 10 minutes, conveying the micro-nano bubble solution to a storage tank, conveying the micro-nano bubble solution into an electrocatalytic oxidation device through a pump, carrying out electrocatalytic oxidation for 10-40 minutes, carrying out oxidative degradation on a large amount of organic matters in the sewage, playing a good pretreatment role, reducing the complexity and cost of subsequent operation, and finally conveying the solution to a subsequent sewage and wastewater treatment process through the pump.
Claims (5)
1. The utility model provides a device that carries out environment-friendly disinfection and isolation to epidemic prevention equipment and public space which characterized in that: comprising O2Generator, gas flowmeter, O3The device comprises a generating device, a micro-nano bubble generator, a storage tank, a pump, an electrocatalytic oxidation device and a collecting box; o is2Oxygen generated by the generating device enters the ozone generating device through a gas transmission pipeline through a gas flowmeter to obtain mixed gas with a small amount of ozone mixed in the oxygen; the mixed gas enters through an air inlet of the micro-nano bubble generator, and meanwhile, the liquid is simply filtered at a water inlet of the micro-nano bubble generator, so that large particles above a millimeter level are removed, the micro-nano bubble generator is prevented from being damaged, and therefore the solution containing oxygen micro-nano bubbles and ozone micro-nano bubbles is generated; the solution enters a storage tank after circulating for several minutes, is conveyed to an electrocatalytic oxidation device again through a pump and stays for dozens of minutes, so that more ozone is efficiently converted into OH; the excess oxygen passes through the O due to the liquid sealing function of the mixed solution outlet U-shaped pipe2The discharge port enters the next working cycle; and finally, conveying the solution in the electrocatalytic oxidation device to a collecting box from a mixed solution outlet through a pump, and finally storing the solution at low temperature in a dark place.
2. The apparatus for environment-friendly disinfection and sterilization of epidemic prevention equipment and public spaces according to claim 1, wherein: o is2The generating device is a high-pressure oxygen bottle or an oxygen generator.
3. The apparatus for environment-friendly disinfection and sterilization of epidemic prevention equipment and public spaces according to claim 1, wherein: the ozone generating device is a high-voltage discharge type ozone generator, and the mass of ozone in ozone water per cubic meter is 20-50mg for air disinfection; for the disinfection of the surface of an object, the mass of ozone in ozone water per cubic meter is more than 10 g; for sewage and wastewater treatment, the mass of ozone in each cubic meter of ozone water is more than 100 g.
4. The apparatus for environment-friendly disinfection and sterilization of epidemic prevention equipment and public spaces according to claim 1, wherein: the micro-nano bubble generating device adopts a mechanical shearing method micro-nano bubble generator, a water inlet of the micro-nano bubble generator adopts a U-shaped pipe design, and a filter screen or a microfiltration membrane is added at the water inlet.
5. The apparatus for environment-friendly disinfection and sterilization of epidemic prevention equipment and public spaces according to claim 1, wherein: the distance between a cathode and an anode in the electrocatalytic oxidation device is 1cm-5cm, and the current density is 10-50mA/cm 2.
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