At present, the commonly used disinfection methods for urban residents' water supply in China are

The disinfection methods of water supply for urban residents in China mainly include disinfectant method, disinfectant method and physical method.

The disinfection method uses chlorine-containing disinfectant, hydrogen peroxide, chlorine dioxide and sodium hypochlorite to disinfect the water supply.

The disinfection method is to disinfect the water supply through ultraviolet lamp, ion exchange resin and ultraviolet system.

The physical method is to remove microorganisms such as pathogens by physical methods such as filtration, activated sludge treatment, microfiltration or coagulation treatment, so as to achieve the purpose of disinfection.

At present, most urban residents will use the above three disinfection methods to ensure the safety of water supply.

In addition, measures such as water level control, harmless treatment and technical upgrading can be taken in urban water supply to better ensure the quality of water supply.

Water quality evaluation and monitoring is also an important measure to ensure the quality of water supply.