It has been more than 100 years since the use of chlorine for disinfection of tap water. Today, many people still do not know whether chlorine is harmful to human body！
Residual chlorine refers to the residual chlorine content in the water after contact for a certain time during the water treatment process using chlorine disinfection.
First, let's talk about why chlorine should be added to tap water?
Chlorine has been used to disinfect tap water for more than 100 years. Because chlorine disinfectants have the functions of sterilization, algae killing and oxidation, chlorine is added in the water treatment process to ensure the water quality in order to better kill bacteria and microorganisms in the water.
Post time: Dec-30-2022