cationic polyacrylamide cpam pam for sludge dewatering in india

cationic polyacrylamide cpam pam for sludge dewatering in india
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  • Are cationic polyacrylamide copolymers used for sludge dewatering?
  • Environmental Sciences Europe 30, Article number: 16 (2018) Cite this article Cationic polyacrylamide copolymers (PAMs) are used for sludge dewatering in municipal waste water treatment and might enter the environment by spreading of the sludge on agricultural land.
  • What is cationic polyacrylamide (CPAM)?
  • Cationic polyacrylamide (CPAM) is a water-soluble linear polyelectrolyte with high molecular weight and positive charge density. Because of its low cost, high efficiency, and simple operation, CPAM is widely used as a chemical conditioner for flocculation pretreatment of sludge before mechanical dewatering (Sun et al. 2018; Zhou et al. 2014 ).
  • How CPAM is used in sludge dewatering?
  • It is very significant and valuable to apply CPAM in the field of sludge dewatering and improve the sludge dewatering and conditioning effect. CPAM is mainly prepared by polymerization of AM and cationic monomer. Acryloxy trimethylammonium chloride (DAC) is one of the more commonly used cationic monomers.
  • Are cationic polyacrylamide copolymers bad for the environment?
  • Cationic polyacrylamide copolymers (PAMs) are used for sludge dewatering in municipal waste water treatment and might enter the environment by spreading of the sludge on agricultural land. Concern has been expressed since little is known about the degradation of PAMs in soils.