WO2021012468A1 - Dispositif et procédé de désinfection combiné au plasma non thermique avec diode électroluminescente ultraviolette - Google Patents

Dispositif et procédé de désinfection combiné au plasma non thermique avec diode électroluminescente ultraviolette Download PDF

Info

Publication number
WO2021012468A1
WO2021012468A1 PCT/CN2019/115888 CN2019115888W WO2021012468A1 WO 2021012468 A1 WO2021012468 A1 WO 2021012468A1 CN 2019115888 W CN2019115888 W CN 2019115888W WO 2021012468 A1 WO2021012468 A1 WO 2021012468A1
Authority
WO
WIPO (PCT)
Prior art keywords
uvc
ultraviolet light
plasma
emitting diode
led lamp
Prior art date
Application number
PCT/CN2019/115888
Other languages
English (en)
Chinese (zh)
Inventor
丁甜
廖新浴
刘东红
沈默斐
陈士国
叶兴乾
Original Assignee
浙江大学
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 浙江大学 filed Critical 浙江大学
Publication of WO2021012468A1 publication Critical patent/WO2021012468A1/fr

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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • 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
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • 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
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention

Definitions

  • the invention relates to the technical field of sewage disinfection, in particular to an ultraviolet light emitting diode-non-thermal plasma combined disinfection device and method.
  • Ultraviolet rays are currently used in the field of sewage treatment to disinfect sewage.
  • Ultraviolet rays in the general water treatment process are generated by low-pressure mercury lamps, low-pressure high-intensity mercury lamps and medium-pressure mercury lamps through electrode discharge.
  • the electrode mercury lamp currently used for starting is wrapped in glass, which is very fragile, has a short working life, consumes a lot of energy, contains toxic mercury, and is easy to leak into the environment and cause environmental damage.
  • UVC-LED ultraviolet light emitting diodes
  • UVC can directly damage the DNA of microorganisms and produce pyrimidine dimers, leading to the death of microorganisms.
  • UVC irradiates water molecules to generate a large amount of reactive oxygen radicals (ROS), such as hydroxyl radicals ( ⁇ OH), Hydrogen peroxide (H 2 O 2 ), etc., can oxidize the DNA, protein, cell membrane, etc. of microbial cells, leading to the death of microbes.
  • ROS reactive oxygen radicals
  • ⁇ OH hydroxyl radicals
  • H 2 O 2 Hydrogen peroxide
  • Non-thermal plasma is an emerging broad-spectrum sterilization technology, which has the characteristics of rapid, safe, simple, comprehensive and effective killing of microorganisms, and has broad application prospects in water disinfection, food processing, medicine and hygiene, etc.
  • Plasma can be generated by ionized gas.
  • Plasma is a mixture and contains a variety of active materials, such as charged particles (electrons and ions), free radicals (active oxygen and active nitrogen), and UVC irradiation.
  • active materials such as charged particles (electrons and ions), free radicals (active oxygen and active nitrogen), and UVC irradiation.
  • active materials are dissolved in water It can destroy the cell wall, cell membrane, nucleic acid, protein, etc. of pathogenic bacteria, so as to achieve the purpose of rapid sterilization.
  • the patent specification with publication number CN 103894377 A discloses a combined ultraviolet light and plasma cleaner, including a cleaner body, a plasma generator, and an ultraviolet light generator.
  • the lower part of the cleaner body is a cleaning platform; the plasma generator is set up On the main body of the washer; an ultraviolet light generator is arranged at the lower part of the main body of the washer, and the ultraviolet light generator includes a control box, an electronic ballast, and is arranged in the control box and is connected to the electronic ballast.
  • At least one ultraviolet light tube electrically connected to the cleaner; wherein the lower part of the cleaner body is also provided with a first air duct and a second air duct, and is provided with an electric valve, and the first air duct is coated with a cooling Floor.
  • the object to be cleaned is placed on the cleaning platform, the plasma generator is turned on by the controller, and the cleaning object is cleaned, and then the ultraviolet light generator is turned on by the controller, and the ultraviolet light
  • the tube performs secondary cleaning and sterilization of the objects to be cleaned.
  • the controller controls the valve to open the first air duct.
  • the operation of the ultraviolet light generator will cause the temperature in the washer to rise, heat dissipation through the radiator, and the air in the washer passes through the first air duct. Cool down at time and exchange with the outside to stabilize the temperature in the washer.
  • the objects to be cleaned after two-step cleaning meet the requirements of cleanliness, and after ultraviolet light sterilization, the exhaust gas is not polluted.
  • a suspension rack is provided on the cleaning platform, which can make the objects to be cleaned in multi-directional three-dimensional cleaning, and the cleaning effect is better.
  • the present invention provides a combined ultraviolet light emitting diode-non-thermal plasma disinfection device, which realizes the synergistic effect of UVC-LED and non-thermal plasma, and solves the inadequate sterilization of UVC-LED To achieve the problem of generating a large number of free radicals in a short time, thereby fully killing microorganisms, achieving the purpose of efficient sewage disinfection and low energy consumption.
  • An ultraviolet light emitting diode-non-thermal plasma combined disinfection device comprising an ultraviolet light emitting device, a plasma generating device, and a water inlet component, a water treatment tank and a water outlet component connected in sequence, the bottom of the water treatment tank is transparent;
  • the ultraviolet light emitting device includes a UVC-LED lamp bead, a UVC-LED driver and a UVC-LED control switch that are connected in sequence, and the UVC-LED lamp bead is arranged under the water treatment tank;
  • the plasma generating device includes a plasma control panel, an oil-free air compressor, a vent pipe, a gas ionization chamber, and a plasma rotating nozzle connected in sequence, the plasma control panel is electrically connected to the gas ionization chamber, and the plasma The body rotating nozzle is arranged in the water treatment tank and directly above the UVC-LED lamp beads.
  • the device of the present invention improves the space utilization rate and meets the characteristics of a small integrated sewage treatment equipment.
  • the UVC-LED lamp beads below the water treatment tank generate ultraviolet rays, and cooperate with the plasma sprayed by the plasma rotating nozzle directly above to achieve coordinated sterilization and disinfection of the water in the water treatment tank.
  • the water treatment tank is connected to the water inlet assembly through a water inlet, and is connected to the water outlet assembly through a water outlet, the water inlet is lower than the bottom end of the plasma rotary nozzle, and the water outlet is provided in the water treatment tank. bottom.
  • This design does not cause water to enter the plasma rotating nozzle, and the water does not produce resistance to the plasma ejection, and the treated water in the water treatment tank can be completely emptied.
  • the water inlet assembly includes a water inlet valve, a membrane filter assembly and a water inlet pump with a flow control unit connected in sequence.
  • the water inlet pump is connected to the water treatment tank and can perform preliminary filtration and flow of the inlet water. control.
  • a stirring paddle is provided at the bottom of the water treatment tank and directly above the UVC-LED lamp beads, which can fully mix the sewage in the water treatment tank and promote the free radical reaction generated in the sewage and water.
  • the water outlet assembly includes a water outlet valve.
  • the oil-free air compressor is equipped with a gas flow regulating valve, which can control the injection volume of non-thermal plasma and meet the disinfection requirements of different types of sewage.
  • the bottom of the water treatment tank is a waterproof quartz glass panel, and the UVC-LED lamp beads are arranged under the quartz glass panel, which can prevent the problem of scaling when the UVC-LED lamp beads are immersed in water.
  • the ultraviolet light emitting device includes a plurality of UVC-LED lamp beads
  • the UVC-LED lamp beads are grouped and connected in parallel to the circuit, and the UVC-LED lamp beads in each group are connected in series.
  • the parallel circuits of UVC-LED lamp beads are independent of each other, and they are all controlled by the UVC-LED control switch to adjust the intensity of ultraviolet light irradiation.
  • An ultraviolet light-emitting diode-non-thermal plasma combined disinfection method using the ultraviolet light-emitting diode-non-thermal plasma combined disinfection device, includes: adding sewage to a water treatment tank, turning on a plasma control panel and UVC- The LED driver adjusts the plasma working power and processing time, adjusts the irradiation intensity and irradiation time of the UVC-LED lamp beads, and discharges the treated sewage after the treatment is completed.
  • the oil-free air compressor provides compressed air, enters the gas ionization chamber through the vent pipe to generate plasma, and finally ejects it through the plasma rotating nozzle, which cooperates with the ultraviolet radiation emitted by the UVC-LED lamp beads to perform the treatment on the water in the water treatment tank. Disinfection.
  • the plasma working power is 600 to 900 W, and the processing time is 3 to 10 minutes.
  • the irradiation intensity is 1.7 to 2.5 W/m 2
  • the irradiation time is 3 to 10 min.
  • the main advantages of the present invention include:
  • the present invention organically combines UVC-LED and non-thermal plasma.
  • Non-thermal plasma generates a large amount of nitroxide free radicals and UVC light reaction.
  • Water generates oxygen free radicals and simultaneously reacts with microorganisms in the water to enhance the free radical effect in a short time. , So as to achieve a synergistic sterilization effect under the condition of low loss.
  • UVC-LED lamp beads outside the water treatment tank (such as embedded in waterproof quartz glass) can solve the scaling problem caused by the UVC-LED lamp beads immersed in water.
  • FIG. 1 is a schematic structural diagram of an ultraviolet light emitting diode-non-thermal plasma combined disinfection device of an embodiment
  • FIG. 2 is a schematic top view of the bottom surface of the water treatment tank of the ultraviolet light emitting diode-non-thermal plasma combined disinfection device of the embodiment;
  • FIG. 3 is a schematic diagram of the circuit connection of the ultraviolet light emitting device of the ultraviolet light emitting diode-non-thermal plasma combined disinfection device of the embodiment;
  • FIG. 4 is a schematic diagram of the structure of the UVC-LED control switch of the ultraviolet light emitting diode-non-thermal plasma combined disinfection device of the embodiment;
  • FIG. 5 is a schematic diagram of the structure of the gas ionization chamber of the ultraviolet light emitting diode-non-thermal plasma combined disinfection device of the embodiment
  • water inlet valve 1 water inlet valve 1; membrane filter assembly 2; flow control unit 3; high-pressure diaphragm pump 4; UVC-LED lamp beads 5; UVC-LED driver 6; UVC-LED control switch 7; waterproof quartz glass bottom plate 8; stirring Paddle 9; plasma rotating nozzle 10; water treatment tank 11; gas ionization chamber 12; vent pipe 13; cable 14; plasma control panel 15; gas flow regulating valve 16; oil-free air compressor 17; water outlet valve 18; UVC -LED lamp bead switch 19; sliding rheostat 20; water inlet 21; water outlet 22; gas ionization copper electrode 23.
  • the ultraviolet light emitting diode-non-thermal plasma combined disinfection device of this embodiment includes an ultraviolet light emitting device, a plasma generating device, and a water inlet assembly, a water treatment tank 11, and a water outlet assembly connected in sequence.
  • the water treatment tank 11 is made of quartz glass and has a cylindrical shape, and the bottom of the tank is a transparent waterproof quartz glass bottom plate 8.
  • a water inlet 21 is provided at the upper part of one side of the water treatment tank 11, and a water outlet 22 is provided at the bottom of the opposite side.
  • a stirring paddle 9 is provided in the center of the bottom of the water treatment tank 11.
  • the water inlet assembly includes a water inlet valve 1, a membrane filter assembly 2 and a high-pressure diaphragm pump 4 with a flow control unit 3 connected in sequence.
  • the water outlet end of the high-pressure diaphragm pump 4 is connected to the water inlet 21 of the water treatment tank 11.
  • the water outlet assembly includes a water outlet valve 18 connected to the water outlet 22 of the water treatment tank 11.
  • the ultraviolet light emitting device includes a UVC-LED lamp bead 5, a UVC-LED driver 6 and a UVC-LED control switch 7 which are sequentially connected, and the UVC-LED lamp bead 5 is arranged under the waterproof quartz glass base plate 8.
  • UVC-LED lamp beads 5 which are divided into three rows (ie, three groups) around the stirring paddle 9. There are two rows on both sides of the stirring paddle 9 symmetrical, with 3 in each row. There are two in the same row as the stirring paddle 9, with the stirring paddle 9 as the center, arranged on both sides.
  • Such uniformly distributed UVC-LED lamp beads can provide uniform ultraviolet radiation.
  • the UVC-LED lamp beads 5 are grouped and connected in parallel to the circuit, and the UVC-LED lamp beads 5 in each group are connected in series.
  • the parallel circuits of the UVC-LED lamp beads 5 are independent of each other, and each parallel branch circuit is controlled by a UVC-LED lamp bead switch 19 and a sliding rheostat 20 to control the switching and irradiation intensity of ultraviolet rays.
  • UVC-LED lamp bead switches 19 and three sliding rheostats 20 are integrated on one UVC-LED control switch 7.
  • the plasma generating device includes a plasma control panel 15 and a gas flow regulating valve 16, an oil-free air compressor 17, a vent pipe 13, a gas ionization chamber 12 and a plasma rotating nozzle 10 connected in sequence.
  • the plasma control panel 15 and the gas ionization chamber 12 are connected by a cable 14 to control the plasma power.
  • the gas flow regulating valve 16 regulates the flow of compressed air, thereby controlling the amount of plasma injection.
  • the plasma rotary shower head 10 is arranged in the upper part of the water treatment tank 11 and directly above the UVC-LED lamp beads 5. The bottom end of the plasma rotary shower head 10 is higher than the water inlet 21.
  • the bottom of the gas ionization chamber 12 communicates with the top of the plasma rotary shower head 10, and the top communicates with the vent pipe 13.
  • the gas ionization chamber 12 is located above the plasma rotary shower head 10, and is fixed in position by a beam on the top of the water treatment tank 11.
  • the gas ionization chamber 12 is provided with two vertically symmetrical gas ionization copper electrodes 23, and the gas ionization copper electrodes 23 are connected to the plasma control panel 15 through a cable 14 to form an electric field.
  • the compressed air provided by the oil-free air compressor 17 After the compressed air provided by the oil-free air compressor 17 enters the gas ionization chamber 12 through the vent pipe 13, it passes through the area formed between the two gas ionized copper electrodes 23, is ionized by the electric field to form plasma, and enters the plasma rotating nozzle 10 below. , And finally sprayed out, contacting the water body in the water treatment tank 11.
  • the ultraviolet light emitting diode-non-thermal plasma combined disinfection device improves the space utilization rate and meets the characteristics of a small integrated sewage treatment equipment.
  • the UVC-LED lamp beads 5 below the water treatment tank 11 generate ultraviolet rays, which cooperate with the plasma sprayed by the plasma rotating nozzle 10 directly above to achieve coordinated sterilization and disinfection of the water body in the water treatment tank 11.
  • ultraviolet light-emitting diode-non-thermal plasma combined disinfection device to perform ultraviolet light-emitting diode-non-thermal plasma combined disinfection includes: adding sewage to the water treatment tank 11, turning on the plasma control panel 15 and the UVC-LED driver 6 , Adjust the plasma working power and treatment time, adjust the irradiation intensity and irradiation time of the UVC-LED lamp beads 5, and discharge the treated sewage after the treatment is completed.
  • the COD in the sewage is 400mg/L
  • BOD is 200mg/L
  • pH 6-9 suspended solids 2000mg/L
  • the specific treatment method is:
  • the plasma control panel 15 of the ultraviolet light-emitting diode-non-thermal plasma combined disinfection device of the embodiment is closed, that is, the UVC-LED lamp beads 5 are used to disinfect the sewage, and the other conditions are the same as those in Test Example 1.
  • the UVC-LED control switch 7 of the ultraviolet light emitting diode-non-thermal plasma combined disinfection device of the embodiment is turned off, that is, the sewage is disinfected with plasma alone, and the remaining conditions are the same as those in Test Example 1.
  • Test Example 1 The total amount of sewage added in step (1) of Test Example 1 was adjusted to 120 mL, and other conditions were the same as Test Example 1.
  • the irradiation intensity of the UVC-LED lamp bead 5 in step (2) of Test Example 1 is set to 1.7 W/m 2 , and the other conditions are the same as Test Example 1.
  • Test case 1 sample Number of colonies (log 10 CFU/mL) Untreated sewage 7.02 ⁇ 0.02 Test case 1 not detected Test case 2 6.70 ⁇ 0.20 Test case 3 6.00 ⁇ 0.40 Test case 4 4.28 ⁇ 0.12 Test case 5 not detected

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physical Water Treatments (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

L'invention concerne un dispositif de désinfection combiné au plasma non thermique avec diode électroluminescente ultraviolette. Ledit dispositif de désinfection comprend un dispositif émetteur de lumière ultraviolette, un dispositif de génération de plasma et un ensemble entrée d'eau, un réservoir de traitement d'eau (11) et un ensemble sortie d'eau raccordés de manière séquentielle, le fond du réservoir de traitement d'eau (11) étant transparent. Le dispositif émetteur de lumière ultraviolette comprend des perles de lampe à DEL UVC (5), un pilote de DEL UVC (6) et un commutateur de commande de DEL UVC (7) qui sont connectés de manière séquentielle. Les perles de lampe à DEL UVC (5) sont disposées sous le réservoir de traitement d'eau (11). Le dispositif de génération de plasma comprend un panneau de commande de plasma (15) et un compresseur d'air à pistons secs (17), un tuyau de ventilation (13), une chambre d'ionisation de gaz (12) et une buse rotative de plasma (10) qui sont connectés de manière séquentielle. Le panneau de commande de plasma (15) est électriquement connecté à la chambre d'ionisation de gaz (12). La buse rotative à plasma (10) est disposée dans le réservoir de traitement d'eau (11), juste au-dessus des perles de lampe à DEL UVC (5). La synergie de la lampe à DEL UVC et du plasma non thermique est réalisée, et le problème de stérilisation à lampe à DEL UVC inadéquate est résolu. L'invention concerne également un procédé de désinfection combiné au plasma non thermique avec diode électroluminescente ultraviolette.
PCT/CN2019/115888 2019-07-22 2019-11-06 Dispositif et procédé de désinfection combiné au plasma non thermique avec diode électroluminescente ultraviolette WO2021012468A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910661068.7A CN110451700B (zh) 2019-07-22 2019-07-22 紫外线发光二极管-非热等离子体组合式消毒装置及方法
CN201910661068.7 2019-07-22

Publications (1)

Publication Number Publication Date
WO2021012468A1 true WO2021012468A1 (fr) 2021-01-28

Family

ID=68481662

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/115888 WO2021012468A1 (fr) 2019-07-22 2019-11-06 Dispositif et procédé de désinfection combiné au plasma non thermique avec diode électroluminescente ultraviolette

Country Status (2)

Country Link
CN (1) CN110451700B (fr)
WO (1) WO2021012468A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102107944A (zh) * 2010-11-20 2011-06-29 大连海事大学 一种氧活性粒子治理赤潮的装置
CN201907997U (zh) * 2010-11-20 2011-07-27 大连海事大学 一种氧活性粒子治理赤潮的装置
CN103570098A (zh) * 2013-04-22 2014-02-12 惠州市银嘉环保科技有限公司 一种紫外led流体消毒系统
US20140048494A1 (en) * 1998-04-20 2014-02-20 Frederick Lee Simmons, Jr. Apparatus and method of creating a concentrated supersaturated gaseous solution having ionization potential
CN106745487A (zh) * 2017-01-13 2017-05-31 杜佳钊 一种物理杀菌装置
CN206476783U (zh) * 2017-01-13 2017-09-08 杜佳钊 一种物理杀菌装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108585362A (zh) * 2018-05-10 2018-09-28 巢湖市南特精密制造有限公司 一种杀菌除臭装置及机床切削液处理方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140048494A1 (en) * 1998-04-20 2014-02-20 Frederick Lee Simmons, Jr. Apparatus and method of creating a concentrated supersaturated gaseous solution having ionization potential
CN102107944A (zh) * 2010-11-20 2011-06-29 大连海事大学 一种氧活性粒子治理赤潮的装置
CN201907997U (zh) * 2010-11-20 2011-07-27 大连海事大学 一种氧活性粒子治理赤潮的装置
CN103570098A (zh) * 2013-04-22 2014-02-12 惠州市银嘉环保科技有限公司 一种紫外led流体消毒系统
CN106745487A (zh) * 2017-01-13 2017-05-31 杜佳钊 一种物理杀菌装置
CN206476783U (zh) * 2017-01-13 2017-09-08 杜佳钊 一种物理杀菌装置

Also Published As

Publication number Publication date
CN110451700B (zh) 2020-09-01
CN110451700A (zh) 2019-11-15

Similar Documents

Publication Publication Date Title
JP5223462B2 (ja) ヒートポンプ式給湯装置及び温水の滅菌方法
KR101785093B1 (ko) 살균 장치
CN104843918B (zh) 一种采用低温等离子体协同TiO2处理含孔雀石绿废水的方法及装置
KR102007900B1 (ko) 농산물 살균용 대기압 플라즈마 시스템
CN104225638A (zh) 一种低于80℃的等离子体雾化灭菌装置
CN112972723B (zh) 氮氧化物模式与臭氧模式相结合的放电等离子体消毒装置
CN111620493A (zh) 去除污水中抗生素抗性菌和抗性基因的方法及专用设备
CN108640228A (zh) 一种低温等离子体处理医疗废水的装置及方法
WO2020151545A1 (fr) Procédé de catalyse à plasma et dispositif de traitement de gaz résiduaire organique basé sur un procédé biologique
WO2021012468A1 (fr) Dispositif et procédé de désinfection combiné au plasma non thermique avec diode électroluminescente ultraviolette
WO2021226825A1 (fr) Climatiseur intelligent
CN113101389A (zh) 一种等离子体杀菌装置、杀菌气体的制备方法及杀菌方法
CN209989118U (zh) 等离子体与脉冲电场联用杀菌装置
CN201578623U (zh) 臭氧消毒仪
KR102066339B1 (ko) 플라즈마 용존수 제조 장치
CN113511706B (zh) 一种空气等离子体制备活化冰的装置及方法
CN212954412U (zh) 一种光动力液体杀菌系统
CN213446346U (zh) 一种消毒设备
CN208429913U (zh) 一种低温等离子体处理医疗废水的装置
KR200205852Y1 (ko) 코일전극을 내장한 관형 오존발생기
CN101671063B (zh) 低压高强紫外线船舶压载水处理设备
CN216022313U (zh) 储物柜等离子消毒装置
CN216114829U (zh) 一种空气等离子体制备活化冰的装置
CN107347784A (zh) 一种鱼缸用介质阻挡放电水处理装置及使用方法
CN212756614U (zh) 一种光电催化喷淋微波杀毒灭菌器

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: 19939028

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19939028

Country of ref document: EP

Kind code of ref document: A1