Does polymeric aluminum chloride and polyacrylamide dewater sludge?

Sludge dewatering is governed by chemical potential gap depicted by Flory-Huggins theory. Thermodynamic mechanisms of sludge dewatering by chemical conditioning was revealed. This study investigated the combined effects of polymeric aluminum chloride (PAC) and polyacrylamide (PAM) on sludge dewatering, aiming to unveil underlying mechanisms.

What is sinofloc nonionic polyacrylamide?

Sinofloc nonionic polyacrylamide has good water solubility even in cold water. Moreover nonionic polyacrylamide can be greatly flocculated under a small dosage like 0.01~10ppm. And our nonionic polymer shows a great performance when joint using with inorganic flocculant like polymerized ferric sulfate, poly aluminum chloride, and iron salt.

What is polymeric aluminum chloride?

Polymeric aluminum chloride (PAC) is characterized as an inorganic macromolecule, with its monomers forming a binuclear complex of aluminum. In aqueous environments, this compound further develops into polynuclear complexes.

What is anionic polyacrylamide (PAM)?

Anionic polyacrylamide (PAM) possesses interconnected and active groups that establish robust bonds with the surface of suspended colloids, promoting the formation of coarse particles among the suspended solids and a mixture of insoluble particles in water (Irfan et al. 2017).

What is nonionic polyacrylamide?

Nonionic polyacrylamide is widely applied in the field of building materials as an external additive for concrete, which can improve the interaction between concrete particles and thereby the strength and toughness of concrete is increased.

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 .