Polyaluminium chloride is a kind of inorganic polymer flocculants , abbreviations for PAC. Due to the effect of bridge of the hydroxyl ions and polyvalent anions polymerization production, charge higher molecular weight of inorganic polymer water treatment agent.
Poly aluminum Chloride referred to as PAC. Often called Basic or a coagulant such as aluminum chloride, which is between ALCL3 and AL (OH) 3 ,as a water-soluble inorganic polymers, the chemical molecular is [AL2 (OH) NCL6 - NLm] ,where m on behalf of polymerization degree, n said that the neutral level of PAC products. The color is yellow or light yellow, dark brown, dark gray resin-like solid. The product has a strong bridge adsorption performance, during the hydrolysis process, Occurs with cohesion, adsorption and precipitation and other physical chemical processes.
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In water treatment, coagulation flocculation involves the addition of compounds that promote the clumping of fines into larger floc so that they can be more easily separated from the water. Coagulation is a chemical process that involves neutralization of charge ... Coagulation is affected by the type of coagulant used, its dose and mass; pH
flocculation are used to separate the suspended solids portion from the water. ... Coagulant chemicals with charges opposite those of the suspended solids are added to the ... These stages are followed by sedimentation, and then filtration