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 .

What is the difference between polyaluminum chloride and hybrid flocculants?

Compared to conventional single-type or composite flocculants, hybrid flocculants have higher surface charge density and strong adsorption bridging ability. Polyaluminum Chloride (PAC) has a high positive surface charge density and effectively removes negatively charged colloids or pollutant particles from water.

What is polyaluminum chloride?

Polyaluminum Chloride (PAC) has a high positive surface charge density and effectively removes negatively charged colloids or pollutant particles from water. For instance, a hybrid polymer flocculant was prepared using PAC, which consisted of an inorganic component and a long-chain organic polymer PAM bonded by —SO 42- ions.

How effective is coagulant & flocculant?

Results showed that the most effective impact of coagulant and flocculant was the treated wastewater in Jar 5 using only 16 mg/L of PAC and 0.04 mg/L of PAM were used as coagulant and flocculant, respectively, resulting the value of the turbidity, pH, COD, BOD, and TSS was 2.00 NTU, pH 6.22, 2.00 mg/L, 5.22 mg/L, and 2.00 mg/L, respectively.

What is the mechanism of flocculation facilitated by Pac-P aqueous solution free radical micelle polymerization?

The mechanism of flocculation facilitated by the flocculant has been elucidated. In this study, a novel inorganic-organic hybrid polymer flocculant PAC-P (AM-BA) with hydrophobic groups was synthesized using the aqueous solution free radical micelle polymerization method.

Can PAC be used as coagulant for water treatment?

The ZPD value of PAC was also revealed that the flocculation tendency of PAC particles was very high in water, and the PAC could be used as coagulant for water treatment. Fig. 5.