Primary and secondary schools (kindergartens) are prone to the rapid spread of infectious diseases among students due to their innate characteristics such as high personnel density and long learning time. The school canteen is a high gathering place for teachers and students in the school. Under the current severe situation of novel coronavirus pneumonia, how to prevent and control the school canteen to ensure the health of teachers and students in the school and refuse to "get sick by mouth"? Masks and isolation measures are basically less use for epidemic prevention. An active disinfection system covering the whole school must be established as soon as possible in order to effectively control the spread of diseases on the basis of cutting off the channels of infection.
Shandong Yuanda-llongwill Educational Science and Technology Ltd. (Yuanda-llongwill) began to layout campus health undertakings six years ago. In August 2014, Yuanda-llonwill invested and established a wholly-owned subsidiary, Shanghai Cleanbao Environment Science & Technology Co., Ltd., which relies on independent intellectual property rights to develop Kelinbao® and Langkeweibao® Series of disinfection equipment. The disinfection equipment can produce safe and efficient chlorine dioxide disinfectant and disinfection gas, which can be used in school public areas, public toilets and other densely populated areas. It can be safely disinfected anytime and anywhere, to effectively block the spread of the virus, and ensure that the air and object surfaces are fully covered.
The deployment of Cleanbao® campus disinfection workstation is convenient and easy, and the raw materials are easy to get and cheap, providing professional and systematic disinfection solutions for the health prevention and control work of schools.
I Canteen lobby
Langkeweibao® automatic induction hand disinfector and Langkeweibao® sole disinfection device can be installed in the lobby of canteen, and is used with chlorine dioxide disinfectant with a concentration of 50-100mg/L. the fully automatic induction hand disinfector has a built-in 1.5L liquid storage tank, which releases 1ml of disinfectant each time. Adding disinfectant once can be used 1500 times; Each time you use the sole disinfection device, the disinfection time is not less than 5-10s. By disinfecting hands and soles, it can effectively prevent pathogenic bacteria and viruses from being carried into the canteen and ensure the safety of meals.
Ⅱ Classrooms and offices
Air disinfection
The Cleanbao C-1000 large-scale air disinfection and treatment system can be installed in the equipment room of the canteen, and a special air distributor for disinfection gas can be installed in each classroom and office. The chlorine dioxide disinfection gas generated in real time is released to each room regularly and quantitatively by laying pipelines according to the safety standard that the release concentration is 0.1-0.3mg/m³ in presence and 0.75-2.5mg/m³ in absence. It is disinfected twice a day in the whole space for 30-60min each time.
Cleanbao A-200 air disinfection system, with mobile design, disinfects the air in classrooms, machine rooms and office areas twice a day for 30-60min at a fixed time, according to the disinfection gas standard with the release concentration of 0.1-0.3mg/m³ in presence and 0.75-2.5mg/m³ in absence, so as to prevent the spread of pathogenic bacteria through droplets, air, aerosols and other forms.
Surface disinfection
Install Langkeweibao® C-30 disinfectant generator in the kitchen. Soak the rags in the disinfectant with a concentration of 50-100mg/L, and wipe and disinfect the kitchen stove, cutting board, shelf and other items before and after each meal; At the same time, wipe and disinfect the canteen tables and chairs, card swiping machines, storage desks, stair armrests, doors, windows and handles to block the spread of bacteria and viruses through the table, in order to ensure the safety of teachers and students, and refuse "diseases from the mouth".
Take chlorine dioxide disinfectant with a concentration of 50-100mg/L at the place where the C-30 disinfectant generator is installed, and soak the mop directly into the disinfectant. Before and after each meal, use the mop to disinfect the floor of the canteen, kitchen and corridor, or fill the disinfectant into Langkeweibao® L-500 disinfectant sprayer which is equipped with 70L water tank. It is of mobile design and covers a large area. It can work continuously for 1 hour each time, effectively blocking the spread of surface bacteria.
The mops and rags shall be cleaned in time after use, and then soaked in chlorine dioxide disinfectant with a concentration of 50-100mg/L for 10-15min. After thorough sterilization, they shall be managed in different areas and stored separately for the convenience of continued use at the next meal.
III Toilet
Install Langkeweibao® C-30 disinfectant generator, automatic induction hand disinfector and shoe sole disinfection device in the toilet of the canteen. After each meal, the cleaning personnel of the canteen can take chlorine dioxide disinfectant with a concentration of 50-100mg/L from the C-30 disinfectant generator. Use mops and rags soaked in disinfectant to mop the floor and wipe door handles, faucets, etc. Wash the mops and rags after use and soak them in disinfectant for 10-15min for sterilization, so as to facilitate next use; Teachers, students and canteen staff use disinfectant to flush the urinal after using toilet to prevent pathogenic bacteria from spreading through excreta; After using the toilet, use the automatic induction hand disinfector to disinfect your hands, and place a sole disinfection device at the door of the toilet, which is used with chlorine dioxide disinfectant with a concentration of 50-100mg/L; Turn on the A-200 mobile air disinfection equipment in the toilet to release the disinfection and deodorization gas in real time, which can effectively block the spreading of pathogenic bacteria and viruses, and effectively block the transmission of pathogenic bacteria through feces and mouth.
IV Kitchen waste
Store the kitchen waste in a closed dustbin at a fixed place. Take chlorine dioxide disinfectant with a concentration of 50-100mg/L from the toilet equipped with disinfectant generator, and spray it before and after each meal; Or put the disinfectant into Langkeweibao® L-500 mobile disinfectant sprayer, and sprays the kitchen waste before and after meals every day to eliminate the source of virus infection. After each meal, the kitchen waste is cleaned and transported away in time.
Matters needing attention
1. Vehicle control is implemented for the distribution of food materials. Before each transportation of food, take chlorine dioxide disinfectant with a concentration of 50-100mg/l from the toilet equipped with Langkeweibao® C-30 disinfectant generator. Soak the rags in the disinfectant, wipe and disinfect the transportation vehicle, or use Cleanbao L-500 mobile disinfectant sprayer to spray and disinfect, so as to reduce the admission rate of imported diseases;
2. Standardize the dining procedures. Avoid face-to-face and group dining, and take measures to avoid peak crowds and eat at the different time so as to reduce the risk of cross infection.
