What is UV?

日期：2024-05-22 02:30

浏览次数：667

摘要： UV Disinfection Principle UV microbial cells changes the genetic material DNA structure. After the nucleic acid can be absorbed light can prevent cell replication, thereby killing the cell. Depends on the number of cells are destroyed and their ability to resist ultraviolet absorbing UV dose of microorganisms. Disinfection methods Disinfection time Disinfection byproducts

UV Disinfection Principle
UV microbial cells changes the genetic material DNA structure.
After the nucleic acid can be absorbed light can prevent cell replication, thereby killing the cell.
Depends on the number of cells are destroyed and their ability to resist ultraviolet absorbing UV dose of microorganisms.

Disinfection methods	Disinfection time	Disinfection byproducts	Cost	Effects	Safety
Chlorine	≥30mins	trihalomethanes, haloacetic acids, halogenated cyanide	Lower infrastructure &operating costs	good sterilization effect of persistent disinfection	toxic, corrosive,run a certain riskmanagement
Ozone	5-10mins	bromate, aldehydes, ketones, carboxylic acids, cyanide dibromoacetone	greater investment in infrastructure, high operating costs	kill the virus sterilization effectsare good, no continuousdisinfectio	toxic, strong oxidation resistance
Ultraviolet	5-10s	No	low operating costs, close to chlorine effect	rapid, sustained bactericidal	good safety

UV dose = intensity x duration ( mWs/cm2 = Mw/cm2 x seconds)

UV disinfection without chemicals, does not produce three-induced disinfection byproducts (three letter refers to the carcinogenic, teratogenic, mutagenic)
Bactericidal effect quickly, no noise, does not affect the senses water.
Easy to operate, simple to manage, high safety performance, low operating and maintenance costs.

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