free sample urban sewage treatment polyacrylamide buy in china

free sample urban sewage treatment polyacrylamide buy in china
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  • What is polyacrylamide (PAM)?
  • Polyacrylamide (PAM) is a water-soluble polymer that is usually produced through the polymerization of acrylamide with one or more copolymers.
  • Is polyacrylamide a hazardous monomer?
  • Polyacrylamide (PAM) is a water-soluble polymer that is widely used as a flocculant in sewage treatment. The accumulation of PAM affects the formation of dewatered sludge and potentially produces hazardous monomers. In the present study, the bacterial strain HI47 was isolated from dewatered sludge.
  • Does polyacrylamide biodegradation accumulate acrylamide monomers?
  • The biodegradation did not accumulate acrylamide monomers. Based on the SDS-PAGE and N -terminal sequencing results, the PAM amide groups were converted into carboxyl groups by a PAM-induced extracellular enzyme from the aliphatic amidase family. Keywords: polyacrylamide, biodegradation, dewatered sludge, microorganisms 1. Introduction
  • Can bacteria use polyacrylamide as a carbon source?
  • Microorganisms produce a polyacrylamide induced amidase to deaminate PAM [ 15 ]. Few studies showed that bacteria can utilize or partly utilize PAM as a carbon source [ 16, 17 ]. Several strains that partially use hydrolyzed PAM as the nitrogen and carbon source was also discovered [ 18, 19 ].