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.

Can polyaluminium chloride and anionic polyacrylamide remove CD 2+ and Zn 2+?

Water treatment residuals produced after addition of polyaluminium chloride and anionic polyacrylamide (PAC-APAM WTRs) were evaluated for the potential to remove Cd 2+ and Zn 2+ from aqueous solutions by batch adsorption studies.

Can anionic polyacrylamide be used as a coagulant in water treatment sludge?

Also, using anionic polyacrylamide (APAM) as a coagulant in the dewatering process of water treatment sludge has been a regular practice to accelerate the dewatering process and decrease the size of dewatering tanks or ponds in large-scale drinking water treatment plants.

Is polyaluminium chloride a coagulant?

Meanwhile, polyaluminium chloride (PAC) is increasingly being used as the coagulant to replace the traditional Al-salt based coagulant around the world.

Are Pac-Apam WTRS a cost-effective remediation method for contaminated soils?

The findings show that PAC-APAM WTRs is likely a cost-effective candidate of media used in the remediation techniques for Cd 2+ and Zn 2+ contaminated soils. However, further studies are needed to evaluate the ability to remove both ions under various soil environmental conditions.

Are heavy metal ions a problem in soil remediation?

Heavy metal ions such as Cd 2+ and Zn 2+ are primary concerns in soil remediation (Xue et al. 2009). Most of the heavy metal ions are inherently present in soil at varying background levels (Wu et al. 2018). Various anthropogenic activities cause an increase in their concentrations in soils (Wu et al. 2018).