Tap water refers to the water that is purified and disinfected by the tap water treatment plant and meets the corresponding standards of people's life and production. Domestic water is mainly extracted from rivers, lakes and groundwater through the water intake pump station of the water plant.
Chlorination method is often used for disinfection of tap water. The main purpose of chlorination of public water supply is to prevent water-borne diseases. This method has been popularized for more than 100 years, and it has relatively perfect production technology and equipment. Chlorine used for disinfection of tap water has the advantages of good disinfection effect, low cost and almost no harmful substances. However, after understanding and studying the theoretical data, it is found that chlorine still has some disadvantages in disinfection of tap water. After chlorination and disinfection, tap water will produce carcinogens, and relevant experts have also put forward many improvement measures.