Ultraviolet germicidal effect Ultraviolet germicidal lamps are mainly used for disinfection of water and air. The ultraviolet C (UVC) generated by the ultraviolet germicidal lamp irradiates the water stream. When the bacteria, viruses and algae in the water are irradiated with a certain dose of UVC (wavelength 254nm), the cell's DNA and RNA structure is destroyed, the cell cannot be regenerated, and the bacteria and virus lose the ability to replicate themselves, thus achieving the purpose of disinfection. Among them, the ultraviolet disinfection of water treatment includes the following areas:
Disinfection of sewage:
Municipal sewage, hospital sewage, industrial sewage, and oilfield reuse sewage.
Water supply sterilization:
Tap water, surface water (well water, river water, lake water, etc.). ).
Purified 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 cooled by industrial circulation.
Reclaimed water disinfection/algae removal
Disinfection of aquaculture water and aquarium water.
Disinfection of agricultural irrigation water/ship water.
TOC explains, ozone photodegradation, residual chlorine photodegradation, and chloramine photodegradation.
Mucus disinfection: disinfection of high-concentration syrups, egg whites, drug concentrates, and fruit juices.
The germicidal effect of ultraviolet germicidal lamps;
Ultraviolet rays are sterilization and can kill all microorganisms, including bacteria, tuberculosis, viruses, spores and fungi.
In the disinfection of urban sewage, the total number of bacteria is reduced to less than 200/100ml, and E. coli is 20/100ml.
The terminal ultraviolet disinfection of drinking water can directly meet the drinking water standard.
The chlorine content in swimming pool water can be reduced to 0.5 mg/L, and the removal rate of viruses and bacteria can reach more than 99.99%.
