Water plant in that part of the use of polyaluminum chloride? First of all, under the water plant water treatment process bar water → water pump room → dosing → reaction tank → sedimentation tank → clarification tank → fast filter tank → chlorination → clean water tank → pump room → pipe network Generally, surface water is Water source water treatment process is as follows: Raw water - Add coagulant - Mix - Flocculation Settlement - Disinfection - Filtration - Clear pool - Secondary pumping station - Pipe network - The user of which coagulant is polyaluminum chloride, Wide public can drink safe water, water plant in accordance with the "drinking water health standards," strict control of the quality of polyaluminum chloride, requiring ALO3 to achieve more than 30% content, below the standard, then did not meet the drinking water standards. Water treatment plants have to take all aspects of water treatment checks, have a certain standard, in particular the water samples of the factory have to reach the national standard indicators. After the user to the deterioration of water quality, mostly because of aging pipe network pollution, to the user after the pool, water tower water storage is more likely to be secondary pollution, reducing water quality. Poly aluminum chloride referred to as polyaluminum chloride. Also commonly referred to as a water purifying agent or a coagulant, it is a water-soluble inorganic macromolecular polymer between ALCL3 and AL (OH) 3 and has a chemical formula of [AL2 (OH) nCl6-nLm] m represents the degree of polymerization, n represents the degree of neutrality of the PAC product. Color is yellow or light yellow, dark brown, dark gray resinous solid. The product has strong bridging adsorption properties, in the hydrolysis process, accompanied by condensation, adsorption and precipitation and other physical and chemical processes. Polyaluminium chloride and the traditional inorganic coagulant fundamental difference is that the traditional inorganic coagulant is a low molecular weight crystalline salt, and the structure of polyaluminum chloride by the morphological diversity of polycarboxylate complex composition, flocculation and sedimentation speed, apply PH value of a wide range of non-corrosive pipeline equipment, water purification effect is obvious, can effectively remove the water quality SS, COD, BOD and arsenic, mercury and other heavy metal ions, the product is widely used in drinking water, industrial water and sewage treatment field. Polyaluminium chloride is an important part of water treatment plant, so to choose a national standard of drinking water aluminum chloride. Tap water is related to people's daily use of water and must select standard water treatment chemicals to ensure that people can drink healthy drinking water.