Why is Apam a good flocculant?

Anionic polyacrylamide (APAM) as an important flocculant possess the advantages of high molecular weight, acceptable flocculation performance, low cost and green . The anionic chemical groups in APAM are able to neutralize the positive charge of colloid particles in the wastewater and lead them to crash, aggregate and settle.

What is anionic polyacrylamide (Apam) powder used for?

Application: Anionic polyacrylamide (APAM) powder is versatile and widely used in sludge dewatering, wastewater treatment, papermaking, water clarification, oilfield applications, textile sizing, and as a versatile polymer for thickening, flocculation, stabilization, adhesion, and biomedical materials.

Is Apam-t a novel anionic polyacrylamide?

Conclusion APAM-T is a novel anionic polyacrylamide which has been successfully synthesized by ultrasonic initiated template copolymerization. Characterization results showed the evidence of the microblock structure’s existence and the enhancement of copolymerization degree by adding the template.

Can anionic microblocks improve the flocculation performance of high turbidity water?

Flocculation experimental results demonstrated that the anionic microblocks in the template copolymer could enhance the charge neutralization and bridging ability, and therefore an excellent flocculation performance of treating high turbidity water was observed. 1. Introduction

Can Apam improve solid-water separation?

have been developed and applied in the waste water treat-ment.16,17 However, the defect of the APAM, namely, the disor-dered and random distribution of anionic units in the polymer chain, seriously restricts the further enhancement of the solid-water separation ability.

Does Apam-T microblock structure improve flocculation performance?

In the floc particle size distribution and fragmentation and reflocculation experiments, the floc corresponding to APAM-T had the strongest regeneration ability after fragmentation, which further confirmed the criticality of the microblock structure in enhancing the flocculation performance.