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.

Do PAC-Apam WTRS release al 3+ ions?

It is worth noting that the application of this type of WTRs into soil for remediation is mixing the PAC-APAM WTRs with the contaminated soil at a specific ratio rather than completely replacing the contaminated soils (Hovsepyan and Bonzongo 2009). Therefore, the release of Al 3+ ions from PAC-APAM WTRs is likely limited.

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.

Does PAC-Apam increase phosphorus adsorption capacity?

Compared with soils without PAC-APAM WTRs, the maximum adsorption capacity of phosphorus increased by 0.50 to 25.30% in silty clay soil with PAC-APAM WTRs, by 18.59 to 47.13% in loam soil with PAC-APAM WTRs, and by 38.30 to 64.35% in silty loam (loess) soil with PAC-APAM WTRs.