Drinking water purification and disinfection treatment steps are usually

Drinking water purification and disinfection treatment steps are usually coagulation and precipitation, filtration, disinfection.

1, coagulation and precipitation

Coagulation and precipitation is to add coagulants to drinking water, so that the suspended particles and colloidal substances in the water adhere to each other and polymerize into larger particles, and then settle down from the water. Aluminum salts are the most commonly used coagulants, such as alum.

2, filtration

Filtration is muddy water through the filter media layer (sand, gravel, etc.) suspended particles in the water and microorganisms and other impurities are retained in the filter layer or filter layer, and to achieve the purification process. Water after filtration residual microorganisms lose the protective effect of suspended material, was bare, for the next step in post-filtration disinfection to create conditions.

3, disinfection

Disinfection is the method of killing microorganisms in the water. Currently used for drinking water disinfection methods are chlorination disinfection, chlorine dioxide disinfection, ozone disinfection, ultraviolet disinfection and so on.

Drinking water purchase method

1, buy brand preferred larger enterprises and well-known brands, drinking water has been included in the quality and safety market access management, all products should be QS logo.

2, look at the product labeling: qualified product labeling should be clearly marked with its product name, net content, manufacturer's name, address, date of production, shelf life, product standard number and so on.

3, identify the sensory quality of water: qualified drinking water should be colorless, transparent, clear, tasteless, odorless, no visible matter. Yellowish color, turbidity, flocculent precipitation or impurities, there is an odor of the water must not be drunk.

4, buy water purification machine water to see the machine's sanitary conditions, machine management patrol and filter replacement and cleaning frequency records. Try to choose the machine's health status is good, the machine management of the inspection and filter replacement and cleaning frequency of purchase.