Water Treatment Disinfection

　　Water disinfection techniques commonly used are:

　　1) Chlorine Disinfection

　　Chlorine disinfection is mainly through the oxidation of hypochlorite to kill bacteria, sodium hypochlorite is a small neutral molecule, can spread to the negatively charged surface bacteriological, bacteriological through the cell wall of bacteria through to the inside, and from oxidation, destruction of bacteria bacterial enzyme system Reship death, but for water, viruses, parasites kill the eggs less effective.

　　2) Ozone

　　Ozone oxidation and disinfection mechanisms, including direct indirect oxidation of free radicals, and chlorine and chlorine dioxide as the structure of micro-organisms through oxidative damage, to achieve the purpose of disinfection.

　　3) Chlorine dioxide

　　Chlorine dioxide disinfection mechanism is the oxidation can be better to kill bacteria, viruses, and does not produce damage on the plants and animals, sterilization lasted longer, the affected small, can be deodorant, to color.

　　4) Chloramines

　　Chloramines disinfection is the chlorine derivatives of disinfection methods, due to chloramines disinfection is slow, and it can not be as basic disinfectant, once disabled.

　　5) UV disinfection

　　The mechanism of UV disinfection is a certain dose of UV radiation can damage the structure of biological cells, by damaging the genetic material and biological to kill aquatic life, so as to achieve the purpose of water purification.