Do polyaluminium chloride and anionic polyacrylamide water treatment residuals adsorb phosphorus?

Polyaluminium chloride and anionic polyacrylamide water treatment residuals (PAC-APAM WTRs) as an amendment in three types of soils with the ratios (w/w) of 10%, 15%, and 20% were evaluated for phosphorus adsorption from aqueous solutions by batch studies.

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 .

Does polyaluminum chloride hydrolysis affect kaolin coagulation performance?

The effects of polyaluminum chloride (PACl) hydrolysis prior to coagulation on both the coagulation zone and coagulation performance of a kaolin suspension were investigated by a novel jar test named the “reversed coagulation test”.

Does PACL hydrolysis improve charge neutralization coagulation?

The tests showed that PACl hydrolysis prior to coagulation decreased the performance of charge neutralization coagulation in the case of short-time slow mixing (10 min; G = 15 sec − 1) and increased the optimal dosage for charge neutralization and sweep coagulation.

Can PACL hydrolysis be adapted under different operating conditions?

Based on the forcing hydrolysis characteristics of fine bubbles due to the adsorption of hydroxide ions on their surfaces, this study verified the adaptability of the forced PACl hydrolysis by fine bubbles under different operating conditions objectively and comprehensively.

Can fine bubbles enhance coagulation efficiency by forced hydrolysis of PACL?

Although the physicochemical characteristics of the fine bubbles needed to be further investigated, the results of the coagulation enhancement showed the feasibility of the fine bubbles to enhance the coagulation efficiency by forced hydrolysis of PACl.