anionic polyacrylamide biodegradation in american samoa

anionic polyacrylamide biodegradation in american samoa
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  • Is polyacrylamide used in sludge dewatering anaerobic digestion?
  • Polyacrylamide (PAM) used in sludge dewatering widely exists in high-solid anaerobic digestion. Degradation of polyacrylamide accompanied with accumulation of its toxic monomer is important to disposition of biogas residues. The potential of anaerobic digestion activity in microbial utilization of PAM was investigated in this study.
  • What is anionic polyacrylamide (HPAM)?
  • 1. Introduction Anionic polyacrylamide (HPAM) is a linear polymer flocculant that has been used in clarifying slime water. (1−4) The carboxyl side chain of HPAM is negatively charged in an alkaline environment, and the suspension is clarified by an adsorption bridge.
  • 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.
  • Can anaerobic mixed cultures use polyacrylamide as nitrogen and carbon source?
  • Hence, anaerobic mixed cultures originating from sewage sludge, containing extracellular amidases and depolymerizing enzyme produced by anaerobic microorganisms have an ability to utilize polyacrylamide as nitrogen and carbon source.