Why is polyacrylamide used in water treatment?

With the increasing global water scarcity and escalating environmental pollution, efficient water treatment has become paramount. Polyacrylamide, as a versatile polymer compound, has demonstrated significant achievements in the field of water treatment. PAM is widely used as a coagulant and flocculant in wastewater treatment.

What is polyacrylamide used for?

The drinking water we use every day is obtained from the treatment of natural water. In the treatment process, polyacrylamide is generally used to remove bacteria, viruses, and algae, and also in the hydrolysis process, anionic polyacrylamide is used. Used in low-grade water purifiers.

How is partially hydrolyzed polyacrylamide wastewater treated?

Yongrui, P., et al. Treatment of partially hydrolyzed polyacrylamide wastewater by combined Fenton oxidation and anaerobic biological processes. Chem. Eng. J. 273, 1–6 (2015).

Does biological filtration improve polyacrylamide biodegradation?

Freedman, D. E. et al. Biologically active filtration for fracturing flowback and produced water treatment. J. Water Process Eng. 18, 29–40 (2017). Dai, X. et al. Waste-activated sludge fermentation for polyacrylamide biodegradation improved by anaerobic hydrolysis and key microorganisms involved in biological polyacrylamide removal.

What are polyacrylamide particles?

Polyacrylamides are particles with very-long-chain lengths, very high molecular weights, and are very hydrophilic. For easier solubility in water, these particles are prepared and supplied in the form of granules and powder.

Which reagent is used to degrade polyacrylamide in aqueous solution?

Ramsden, D. K. & McKay, K. Degradation of polyacrylamide in aqueous solution induced by chemically generated hydroxyl radicals: Part I-Fenton’s reagent. Polym. Degrad. Stab. 14, 217–229 (1986). Ramsden, D. K., & McKay, K.