UV germicidal lamp action and UV germicidal effect
Sep 03, 2021
Ultraviolet germicidal lamps are mainly used for sterilization and disinfection of water and air. The ultraviolet C (UVC) generated by the ultraviolet germicidal lamps irradiates the water flow. When bacteria, viruses, algae, etc. in the water are irradiated with a certain dose of UVC (wavelength 254nm), the The DNA and RNA structure of the cell is destroyed, the cell cannot be regenerated, and the bacteria and virus lose the ability to replicate themselves, thereby achieving the purpose of sterilization. Among them, ultraviolet sterilization and disinfection using water treatment include the following areas:
Disinfection of sewage: municipal sewage, hospital sewage, industrial sewage, and oilfield reuse sewage.
Sterilization and disinfection of water supply: tap water, surface water (well water, river water, lake water, etc.).
Pure water, purified water, pure water disinfection: food and beverage, electronic ultrapure water, medicine, injection, cosmetics and other process water disinfection.
Circulating water disinfection: swimming pool water and landscape water have been industrial circulating cooling water.
Reclaimed water for disinfection/algae removal from the water body.
Disinfection of water for aquaculture and aquariums.
Agricultural irrigation water/ship water disinfection.
TOC explanation, ozone photolysis, residual chlorine photolysis, chloramine photolysis.
Mucus disinfection: disinfection of high-concentration syrups, egg whites, pharmaceutical concentrates and fruit juices.
Sterilization effect of ultraviolet germicidal lamp:
Ultraviolet rays belong to the broad-spectrum bactericidal category and can kill all microorganisms, including bacteria, tuberculosis, viruses, spores and fungi.
For the disinfection of urban sewage, the total number of bacteria is reduced to less than 200/100ml, and E. coli is less than 20/100ml.
Adding ultraviolet disinfection to the drinking water terminal can directly meet the drinking water standard.
Pre-disinfect the swimming pool water, the chlorine content in the water can be reduced to 0.5 mg/L, and the removal rate of viruses and bacteria is more than 99.99.
