Ach Aluminium Chlorohydrate Water Treatment PAC 30% Coagulant

Wastewater Treatment Chemicals Aluminum Chlorohydrate PAC 30% Coagulant

Polyaluminum chloride (PAC), also known as Aluminum chlorohydrate. The color of polyaluminum chloride is generally white, yellow, and brown. Different colors of polyaluminum chloride also have big differences in application and production technology. Polyaluminum chloride with an aluminum oxide content of 27% to 30% within the national standard range is mostly earthy yellow to yellow or light yellow solid powder. These types of polyaluminum chlorides are relatively water-soluble. In the process of dissolution, they are accompanied by physical and chemical changes such as electrochemistry, condensation, adsorption, and precipitation. The purification effect is obvious.

The raw materials of yellow polyaluminum chloride are calcium aluminate powder, hydrochloric acid, and bauxite, which are mainly used for sewage treatment and drinking water treatment. The raw materials used in drinking water treatment are aluminum hydroxide powder, hydrochloric acid and a small amount of calcium aluminate powder. The process used is a plate and frame filter press process or a spray drying process. For the treatment of drinking water, the country has strict requirements for heavy metals, so both raw materials and production processes are better than brown polyaluminum chloride. Yellow polyaluminum chloride is generally produced by drum drying or spray tower drying, and has two solid forms: flakes and powders.