Water Treatment Chemicals for Tap Water

Water treatment chemicals for tap water

It is well known that rivers contain a variety of pollutants and impurities due to human and natural factors. From the perspective water treatment, these impurities can be divided into three categories: soluble matter, suspended matter, and colloids. The purpose of water purification treatment in a water treatment plant to remove these suspended substances, colloidal substances, bacteria, and other harmful components from the raw water, which can be harmful to human health and industrial safety, so that the water can meet the needs of people's drinking and industrial production.So what kind of chemicals are needed to treat raw water? What is their principle?Polyalumin chloride: The raw water first needs to go through coagulation treatment. In the raw water, coagulants, such as polyaluminium chloride, are to cause the small suspended matter and colloidal particles in the water, which are not easy to settle, to aggregate with each other, and then form larger flocs, which conducive to separating and settling from the water.Strong chlorine: After filtration, the turbidity will be further reduced, and the residual bacteria, viruses, etc will also lose the protection or attachment of turbid matter, creating good conditions for disinfection. Disinfection does not actually kill all microorganisms, but only requires the of pathogenic microorganisms. Although water can remove most bacteria and viruses after coagulation, precipitation, and filtration, disinfection plays a role in ensuring that drinking water bacteriological standards, and also maintains a certain residual chlorine content in the pipes, which can help control bacterial reproduction. The disinfection agent is generally strong chlorine which is a very strong oxidant and chlorinating agent, and has a good killing effect on bacteria, viruses, fungi, etc. It can be used for disinfection of environment, drinking water, fruits and vegetables, livestock and poultry feeding troughs, fish ponds, etc. It can also be used for disinfection and sterilization in hospitals, hotels, schools, restaurants, homes, and swimming pools. It works by hydrolyzing to form hypochlorous acid, which then decomposes to form nascent oxygen. Nascent oxygen has strong oxidizing properties, which can denature proteins and other substances on viruses and bacteria, thus killing pathogenic microorganisms. In our daily life, often use it. In industry, it is used for the sterilization treatment of industrial sewage, domestic sewage, and oil drilling mud sewage