WO2022073358A1 - 一种臭氧-紫外联用催化氧化消毒方法 - Google Patents

一种臭氧-紫外联用催化氧化消毒方法 Download PDF

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WO2022073358A1
WO2022073358A1 PCT/CN2021/100565 CN2021100565W WO2022073358A1 WO 2022073358 A1 WO2022073358 A1 WO 2022073358A1 CN 2021100565 W CN2021100565 W CN 2021100565W WO 2022073358 A1 WO2022073358 A1 WO 2022073358A1
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ozone
disinfection
ultraviolet
catalytic oxidation
combined catalytic
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马军
何旭
刘新旺
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Harbin Institute of Technology
Harbin Institute of Technology Shenzhen
National Engineering Research Center of Urban Water Resource
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Harbin Institute of Technology
Harbin Institute of Technology Shenzhen
National Engineering Research Center of Urban Water Resource
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/007—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by irradiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/804—UV light

Definitions

  • the invention relates to an ozone-ultraviolet combined catalytic oxidation disinfection method.
  • the current public places disinfection technology is still mainly based on spraying atomized disinfectant, and some places use ozone or chlorine dioxide for air disinfection.
  • These disinfection methods kill bacteria and viruses in the air through the oxidative properties of the chemical agents themselves, but because the chemicals used generally require higher concentrations and longer contact times to achieve the desired disinfection effect, the disinfection process usually requires The crowd was evacuated and ventilation was carried out for a long time after the disinfection was completed, which seriously affected normal production and life.
  • the crowd was evacuated and ventilation was carried out for a long time after the disinfection was completed, which seriously affected normal production and life.
  • how to minimize the impact of the disinfection process on people's work and life on the premise of ensuring the disinfection effect has become a key issue to be solved urgently.
  • the purpose of the present invention is to solve the problems of low disinfection efficiency, long time consumption and poor disinfection effect of the existing public place disinfection methods, and provide an ozone-ultraviolet combined catalytic oxidation disinfection method.
  • An ozone-ultraviolet combined catalytic oxidation disinfection method is carried out according to the following steps:
  • a disinfection room is set up at the entrance of the public place, and several through-type micro-holes are evenly arranged on the floor of the disinfection room.
  • a water tank is set under the floor, and ozone-dissolved ozone water is added to the water tank to maintain the ozone concentration in the air in the disinfection room. It is 1mg/m 3 ⁇ 2mg/m 3 ; the personnel to be sterilized enter the disinfection room and stand at the designated position, turn on the ultraviolet light source, and irradiate the parts below the head of the person to be sterilized. After 10s to 15s of ultraviolet radiation, turn off the ultraviolet light source to complete the ozone -Ultraviolet combined catalytic oxidation disinfection.
  • An ozone-ultraviolet combined catalytic oxidation disinfection method of the present invention is based on the "ultraviolet photocatalytic ozone oxidation technology", and the ozone volatilized in the ozone water is catalyzed and decomposed under the irradiation of an ultraviolet light source to generate highly reactive free radicals. Strong disinfection and sterilization effect.
  • ozone itself also has the effect of disinfection and sterilization. Combined with the disinfection and sterilization effect of ultraviolet light itself, the three are combined to achieve low concentration ozone, low ultraviolet light intensity and low reaction time.
  • the ozone water circulates under the floor of the disinfection room, and the volatilized ozone gas can ensure the effective contact of the soles of the personnel to be disinfected, and solve the problem of the dead corner of disinfection in the traditional spray disinfection method.
  • the invention can simultaneously complete the disinfection and sterilization of a plurality of persons to be sterilized, and is fast and efficient.
  • the present invention supplements ozone into the air through the volatilization of ozone water, and can ensure that the ozone concentration in the air in the disinfection room is kept at a low concentration through the continuous and stable supply of ozone water.
  • the range (1mg/m 3 ⁇ 2mg/m 3 ) it plays a key role in blocking the spread of the virus while ensuring the safety of people in public places.
  • the invention can obtain an ozone-ultraviolet combined catalytic oxidation disinfection method.
  • Embodiment 1 An ozone-ultraviolet combined catalytic oxidation disinfection method of this embodiment is carried out according to the following steps:
  • a disinfection room is set up at the entrance of the public place, and several through-type micro-holes are evenly arranged on the floor of the disinfection room.
  • a water tank is installed under the floor, and ozone-dissolved ozone water is added to the water tank.
  • the ozone concentration in the air of the disinfection room is 1mg/m 3 ⁇ 2mg/m 3 ; the personnel to be sterilized enter the disinfection room and stand at the designated position, turn on the ultraviolet light source, and irradiate the parts below the head of the person to be sterilized. UV combined catalytic oxidation disinfection.
  • An ozone-ultraviolet combined catalytic oxidation disinfection method of the present embodiment based on "ultraviolet photocatalytic ozone oxidation technology", the ozone volatilized in the ozone water undergoes catalytic decomposition under the irradiation of an ultraviolet light source to generate highly reactive free radicals, It has a strong disinfection and sterilization effect.
  • ozone itself also has the effect of disinfection and sterilization. Combined with the disinfection and sterilization effect of ultraviolet light itself, the three are combined to achieve low concentration ozone, low ultraviolet light intensity and low reaction.
  • this embodiment supplements ozone into the air through the volatilization of ozone water, and can ensure that the ozone concentration in the air in the disinfection room is kept at a low level through the continuous and stable supply of ozone water.
  • concentration range (1mg/m 3 ⁇ 2mg/m 3 )
  • it plays a key role in blocking the spread of the virus while ensuring the biological safety of public places.
  • Embodiment 2 This embodiment is different from Embodiment 1 in that the sterilization room is a movable sterilization room.
  • Embodiment 3 The difference between this embodiment and Embodiment 1 or 2 is that the water tank is an annular water tank.
  • Embodiment 4 This embodiment differs from Embodiments 1 to 3 in that the concentration of ozone in the ozone-dissolved ozone water is 1 mg/L to 100 mg/L.
  • Embodiment 5 One of the differences between this embodiment and Embodiments 1 to 4 is that the concentration of ozone in the ozone-dissolved ozone water is 1 mg/L.
  • Embodiment 6 This embodiment differs from Embodiments 1 to 5 in that the concentration of ozone in the ozone-dissolved ozone water is 100 mg/L.
  • Embodiment 7 The difference between this embodiment and Embodiments 1 to 6 is that the ozone concentration in the air in the disinfection room is 2 mg/m 3 .
  • Embodiment 8 The difference between this embodiment and Embodiments 1 to 7 is that the ultraviolet irradiation time is 15s.
  • Embodiment 9 The difference between this embodiment and Embodiments 1 to 8 is that the intensity of the ultraviolet light source is 70 ⁇ W/cm 2 to 100 ⁇ W/cm 2 .
  • Embodiment 10 The difference between this embodiment and Embodiments 1 to 9 is that the intensity of the ultraviolet light source is 100 ⁇ W/cm 2 .
  • Embodiment 1 an ozone-ultraviolet combined catalytic oxidation disinfection method is carried out according to the following steps:
  • a movable disinfection room is installed at the entrance of the public place, and several through-type micro-holes are evenly arranged on the floor of the disinfection room.
  • a ring-shaped water tank is installed under the floor. The water tank is filled with ozone-dissolved ozone water.
  • the concentration of ozone in the water is 100mg/L (the volume ratio of ozone to water is 1:9); the ozone concentration in the air in the disinfection room is kept at 2mg/m 3 ; the personnel to be disinfected enter the disinfection room and stand at the designated position, and turn on the ultraviolet
  • the light source is to irradiate the parts below the head of the person to be disinfected.
  • the ultraviolet light source After 15s of ultraviolet irradiation, the ultraviolet light source is turned off to complete the ozone-ultraviolet combined catalytic oxidation disinfection.
  • the wavelength of the ultraviolet light source is 222 nm, and the intensity of the ultraviolet light source is 100 ⁇ W/cm 2 .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Toxicology (AREA)
  • Physical Water Treatments (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

一种臭氧-紫外联用催化氧化消毒方法，在公共场所入口处设置消毒间，在消毒间的地板上均匀设置有若干个贯穿式微孔，在地板下方设置水槽，水槽内加入溶解有臭氧的臭氧水，保持消毒间内空气中的臭氧浓度为1mg/m3～2mg/m3；待消毒人员进入消毒间站在指定位置处，开启紫外光源，对待消毒人员头部以下部位进行紫外照射，紫外照射10s～15s后关闭紫外光源，完成臭氧-紫外联用催化氧化消毒。

Description

一种臭氧-紫外联用催化氧化消毒方法 技术领域
本发明涉及一种臭氧-紫外联用催化氧化消毒方法。
背景技术
新冠病毒的爆发，给公共场所的公共卫生防护提出了新的挑战。如何保证火车站、机场和医院等公共场所的卫生状况，以确保一线医务人员和普通民众的生命安全，成为决定抗疫成败的关键。
目前的公共场所消毒技术，仍主要以喷洒雾化消毒液为主，部分场所采用臭氧或二氧化氯进行空气消毒。这些消毒方式通过化学试剂本身的氧化性对空气中的细菌和病毒进行杀灭，但由于所用化学药剂普遍需要较高浓度和较长接触时间才能达到理想的消毒效果，因此在消毒过程中通常需要疏散人群，并在消毒完成后进行长时间通风换气，从而严重影响了正常的生产和生活。尤其在目前全国各地逐步复工复学的过程中，如何在保证消毒效果的前提下，最大限度地降低消毒过程对人民工作和生活的影响，成为亟待解决的关键问题。
发明内容
本发明的目的是要解决现有公共场所消毒方法消毒效率低、耗时长以及消毒效果差的问题，而提供一种臭氧-紫外联用催化氧化消毒方法。
一种臭氧-紫外联用催化氧化消毒方法，按以下步骤进行：
在公共场所入口处设置消毒间，在消毒间的地板上均匀设置有若干个贯穿式微孔，在地板下方设置水槽，水槽内加入溶解有臭氧的臭氧水，保持消毒间内空气中的臭氧浓度为1mg/m 3～2mg/m 3；待消毒人员进入消毒间站在指定位置处，开启紫外光源，对待消毒人员头部以下部位进行紫外照射，紫外照射10s～15s后关闭紫外光源，完成臭氧-紫外联用催化氧化消毒。
本发明的有益效果：
1、本发明一种臭氧-紫外联用催化氧化消毒方法，基于“紫外光催化臭氧氧化技术”，臭氧水中挥发出的臭氧在紫外光源的照射下发生催化分解产生高反应活性的自由基，具有很强的消毒、杀菌作用，另外，臭氧本身也具有消毒、杀菌的作用，再结合紫外光本身的消毒、杀菌作用，三者结合，共同实现在低浓度臭氧、低紫外光照强度以及低反应时间条件下的高效杀菌消毒；同时，臭氧水在消毒间地板下方循环流动，挥发的臭氧气体能够保 证对待消毒人员鞋底的有效接触，解决传统喷淋式消毒方式存在消毒死角的问题。本发明可同时完成多个待消毒人员的消毒、杀菌工作，快速、高效。
2、与传统消毒方式直接向空气中投加臭氧相比，本发明通过臭氧水挥发向空气中补充臭氧，能够通过臭氧水的持续稳定供给，保证消毒室内空气中的臭氧浓度稳定保持在低浓度范围内(1mg/m 3～2mg/m 3)，在保证公共场所人员安全的同时，对阻断病毒传播起到关键作用。
本发明可获得一种臭氧-紫外联用催化氧化消毒方法。
具体实施方式
具体实施方式一：本实施方式一种臭氧-紫外联用催化氧化消毒方法，按以下步骤进行：
在公共场所入口处设置消毒间，在消毒间的地板上均匀设置有若干个贯穿式微孔，在地板下方设置水槽，水槽内加入溶解有臭氧的臭氧水，消毒间内空气中的臭氧浓度为1mg/m 3～2mg/m 3；待消毒人员进入消毒间站在指定位置处，开启紫外光源，对待消毒人员头部以下部位进行紫外照射，紫外照射10s～15s后关闭紫外光源，完成臭氧-紫外联用催化氧化消毒。
本实施方式的有益效果：
1、本实施方式一种臭氧-紫外联用催化氧化消毒方法，基于“紫外光催化臭氧氧化技术”，臭氧水中挥发出的臭氧在紫外光源的照射下发生催化分解产生高反应活性的自由基，具有很强的消毒、杀菌作用，另外，臭氧本身也具有消毒、杀菌的作用，再结合紫外光本身的消毒、杀菌作用，三者结合，共同实现在低浓度臭氧、低紫外光照强度以及低反应时间条件下的高效杀菌消毒；同时，臭氧水在消毒间地板下方循环流动，挥发的臭氧气体能够保证对待消毒人员鞋底的有效接触，解决传统喷淋式消毒方式存在消毒死角的问题。本实施方式可同时完成多个待消毒人员的消毒、杀菌工作，快速、高效。
2、与传统消毒方式直接向空气中投加臭氧相比，本实施方式通过臭氧水挥发向空气中补充臭氧，能够通过臭氧水的持续稳定供给，保证消毒室内空气中的臭氧浓度稳定保持在低浓度范围内(1mg/m 3～2mg/m 3)，在保证公共场所生物安全的同时，对阻断病毒传播起到关键作用。
具体实施方式二：本实施方式与具体实施方式一不同点是：所述消毒间为可移动式消毒间。
其他步骤与具体实施方式一相同。
具体实施方式三：本实施方式与具体实施方式一或二不同点是：所述水槽为环形水槽。
其他步骤与具体实施方式一或二相同。
具体实施方式四：本实施方式与具体实施方式一至三之一不同点是：所述溶解有臭氧的臭氧水中臭氧的浓度为1mg/L～100mg/L。
其他步骤与具体实施方式一至三相同。
具体实施方式五：本实施方式与具体实施方式一至四之一不同点是：所述溶解有臭氧的臭氧水中臭氧的浓度为1mg/L。
其他步骤与具体实施方式一至四相同。
具体实施方式六：本实施方式与具体实施方式一至五之一不同点是：所述溶解有臭氧的臭氧水中臭氧的浓度为100mg/L。
其他步骤与具体实施方式一至五相同。
具体实施方式七：本实施方式与具体实施方式一至六之一不同点是：所述消毒间内空气中的臭氧浓度为2mg/m 3。
其他步骤与具体实施方式一至六相同。
具体实施方式八：本实施方式与具体实施方式一至七之一不同点是：所述紫外照射时间为15s。
其他步骤与具体实施方式一至七相同。
具体实施方式九：本实施方式与具体实施方式一至八之一不同点是：所述紫外光源的强度为70μW/cm 2～100μW/cm 2。
其他步骤与具体实施方式一至八相同。
具体实施方式十：本实施方式与具体实施方式一至九之一不同点是：所述紫外光源的强度为100μW/cm 2。
其他步骤与具体实施方式一至九相同。
采用以下实施例验证本发明的有益效果：
实施例一：一种臭氧-紫外联用催化氧化消毒方法，按以下步骤进行：
在公共场所入口处设置可移动式消毒间，在消毒间的地板上均匀设置有若干个贯穿式微孔，在地板下方设置环形水槽，水槽内加入溶解有臭氧的臭氧水，溶解有臭氧的臭氧水中臭氧的浓度为100mg/L(臭氧与水的体积比为1：9)；保持消毒间内空气中的臭氧浓度为2mg/m 3；待消毒人员进入消毒间站在指定位置处，开启紫外光源，对待消毒人员头部以下部位进行紫外照射，紫外照射15s后关闭紫外光源，完成臭氧-紫外联用催化氧化消 毒，所述紫外光源的波长为222nm，紫外光源的强度为100μW/cm 2。

Claims (10)

  1. 一种臭氧-紫外联用催化氧化消毒方法，其特征在于该消毒方法按以下步骤进行：
    在公共场所入口处设置消毒间，在消毒间的地板上均匀设置有若干个贯穿式微孔，在地板下方设置水槽，水槽内加入溶解有臭氧的臭氧水，保持消毒间内空气中的臭氧浓度为1mg/m 3～2mg/m 3；待消毒人员进入消毒间站在指定位置处，开启紫外光源，对待消毒人员头部以下部位进行紫外照射，紫外照射10s～15s后关闭紫外光源，完成臭氧-紫外联用催化氧化消毒。
  2. 根据权利要求1所述的一种臭氧-紫外联用催化氧化消毒方法，其特征在于所述消毒间为可移动式消毒间。
  3. 根据权利要求1所述的一种臭氧-紫外联用催化氧化消毒方法，其特征在于所述水槽为环形水槽。
  4. 根据权利要求1所述的一种臭氧-紫外联用催化氧化消毒方法，其特征在于所述溶解有臭氧的臭氧水中臭氧的浓度为1mg/L～100mg/L。
  5. 根据权利要求4所述的一种臭氧-紫外联用催化氧化消毒方法，其特征在于所述溶解有臭氧的臭氧水中臭氧的浓度为1mg/L。
  6. 根据权利要求4所述的一种臭氧-紫外联用催化氧化消毒方法，其特征在于所述溶解有臭氧的臭氧水中臭氧的浓度为100mg/L。
  7. 根据权利要求1所述的一种臭氧-紫外联用催化氧化消毒方法，其特征在于所述消毒间内空气中的臭氧浓度为2mg/m 3。
  8. 根据权利要求1所述的一种臭氧-紫外联用催化氧化消毒方法，其特征在于所述紫外照射时间为15s。
  9. 根据权利要求1所述的一种臭氧-紫外联用催化氧化消毒方法，其特征在于所述紫外光源的强度为70μW/cm 2～100μW/cm 2。
  10. 根据权利要求9所述的一种臭氧-紫外联用催化氧化消毒方法，其特征在于所述紫外光源的强度为100μW/cm 2。
PCT/CN2021/100565 2020-10-09 2021-06-17 一种臭氧-紫外联用催化氧化消毒方法 Ceased WO2022073358A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
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CN116212070A (zh) * 2022-09-08 2023-06-06 哈尔滨工业大学 一种阻断病毒通过物流传播的两步消杀防控方法

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