How does poly Aluminium chloride work?

Poly Aluminium Chloride is a highly efficient water treatment chemical where it works as a coagulant to extract and clump together contaminants, colloidal and suspended matter. This results in the formation of floc (flocculation) for removal via filters. The below image showing coagulation in action illustrates this process.

What are polyaluminium chlorides?

Polyaluminium chlorides are synthetic polymers dissolved in water. They react to form insoluble aluminium poly-hydroxides which precipitate in big volumetric flocs.The flocs absorb suspended pollutants in the water which are precipitated with the PAC and can together be easily removed.

Can polyaluminium chloride be used in drinking water treatment?

Drinking grade polyaluminium chloride (PAC 30%) can be used in drinking water treatment. Polyaluminum chloride is immediately dissolved in water. During the dissolution process, hydroxide ions release a large amount of positive charges to adsorb negatively charged ions in the water.

What is poly aluminum chloride (PAC)?

Poly Aluminum Chloride (PAC) is a highly efficient coagulant widely used in water treatment processes, particularly for drinking water and industrial wastewater. Known for its superior flocculation properties, PAC has emerged as one of the most effective and environmentally friendly solutions for purifying water.

What is poly Aluminium chloride?

Poly Aluminium Chloride on the other hand, has been developed as an alternative. PAC hydrolyses with greater ease, obtains better coagulation, and rapidly forms flocs making this a much more efficient product. It also possesses lower doses of aluminium therefore leaving significantly fewer aluminium residuals and sludge waste product.

What happens when polyaluminum chloride is dissolved in water?

Polyaluminum chloride is immediately dissolved in water. During the dissolution process, hydroxide ions release a large amount of positive charges to adsorb negatively charged ions in the water. The flocs form fast and coarse with high activity, and settle quickly, so as to achieve the purpose of decomposing and purifying sewage.