Can polyaluminum chloride be used in water treatment?

In this study, synthesis and speciation of polyaluminum chloride (PAC) for application in water treatment was investigated using a colorimetric speciation method. It was possible to produce stable preparations of PAC solutions in which a relatively stable cationic polymer predominated.

Is cationic polyacrylamide hydrophilic?

However, a cationic polyacrylamide itself contains a large number of hydrophilic amide groups that cannot drive the transformation of surface water adsorbed on and absorbed in the sludge flocs into free water that can be separated and removed.

What instruments are used to characterize the hydrophobic association properties of copolymers?

The advanced instruments such as 1 H NMR, FTIR, and SEM were used to characterize the two copolymers. Their hydrophobic association properties in water were investigated by viscosimetry as well as the dewatering performance studied by the sludge dewatering experiment.

What cationic polyacrylamides are used for sludge dewatering?

Two cationic polyacrylamides, PAA and PAD, were synthesized for sludge dewatering. The advanced instruments such as 1H NMR, FTIR, and SEM were used to characterize the two copolymers. Their hydroph…

Does the flocculation mechanism of hacpam have a hydrophobic association Bridging effect?

Theoretically, the flocculation mechanism of HACPAM, in addition to the adsorption and electrical neutralization of CPAM, also has a hydrophobic association bridging effect enhanced by the introduction of hydrophobic groups.

Does starch/poly (acrylamide) hydrogel have self-healing ability?

Starch/poly (acrylamide) hydrogel with self-healing ability was synthesized. Physically cross-linked starch shows significant effect on mechanical strength. Hydrophobically associated domain provides self-healing ability. The hydrogel is able to provide free shape. The hydrogel is mechanically strong even after swelling.