Poly Aluminum Chloride (PAC)

PAC has the general chemical formula [Al₂(OH)nCl₆₋n]m, where aluminum is the active element that serves to bind dirt particles in water.

PAC is usually available in the form of a golden yellow powder or liquid, and is known to have high efficiency in purifying water, both for clean water needs and wastewater treatment.

Uses of PAC

1. Clean Water Treatment
   Used in water treatment plants (WTP) to purify raw water from rivers, lakes, or wells before it is distributed as drinking water.

2. Wastewater Treatment
   Effective for binding suspended particles, heavy metals, and organic matter in industrial, household, and other liquid wastes.

3. Paper and Textile Industry
   Used to accelerate the fiber separation process and improve the quality of production.

4. Chemical and Pharmaceutical Industry
   As an auxiliary material in the purification and precipitation process.

Advantages of PAC over Conventional Coagulants (such as Alum)

• Higher efficiency in the coagulation and flocculation process.

• Lower usage dose, thus saving operational costs.

• Produces less sludge.

• Does not drastically reduce water pH.

• Suitable for various types of raw water quality.