What is polyaluminum chloride (PAC)?

Polyaluminum chloride (PAC) is an inorganic polymer material that has the advantages of a simple preparation process and special electronic structure. It is considered to be the most efficient and widely used flocculation material for water treatment.

Why is polyaluminum chloride a good coagulant for water treatment?

Polyaluminum chloride (PAC) is highly effective coagulant for water treatment over conventional coagulants because of low dosage requirement, shorter flocculation time, smaller amount of sludge, high efficiency and low aluminum residual in treated water .

How does polymeric aluminum chloride achieve destabilization?

Polymeric aluminum chloride (PAC) achieves the destabilization process by adsorbing onto the surface of colloidal particles and facilitating bridging. Consequently, when PAC executes both destabilization mechanisms concurrently, the process becomes more rapid and results in superior separation.

What is polyaluminum chloride used for?

Polyaluminum chloride (PAC) is commonly used as a chemical in the water treatment industry, deodorant and paper-making. The PAC is a complex inorganic substance between hydroxyl and aluminum ions that gradually takes place chlorination with its general formula of Al x (OH) y Cl 3x-y .

Does polyaluminum chloride remove turbidity?

The study compares the efficacy of polyaluminum chloride and polyacrylamide in removing turbidity, representing the number of suspended solids, under varying pH, mixing time, temperature, oil, and suspended solids conditions. Optimizing these parameters is crucial for enhancing the coagulation treatment’s efficiency.

Can PAC be prepared from aluminum chloride solution?

PAC can be prepared from aluminum chloride solution with the titration of various basification agents such as calcium oxide [16, 21], sodium hydroxide [, , ] and sodium aluminate .