Sodium polyacrylate CAS#: 9003-04-7

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  • What is hydrolyzed polyacrylamide (HPAM)?
  • Hydrolyzed polyacrylamide (HPAM), which is extensively used for oil extraction in an oilfield, produces waste water that enters the groundwater system posing a threat to the safety of plants and animals. Among the many methods to removal the HPAM, the biodegradation based screened bacteria and sludge is an efficient method.
  • 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 anionic polyacrylamide resist biodegradation?
  • Anionic polyacrylamide is a negatively charged high molecular weight polymer and strongly resists biodegradation ( Suzuki et al., 1978 ). This is due to its high molecular weight (2.2 × 10 7 g/mol), but also the molecular structure of the HPAM “backbone” linkage ( Chang et al., 2001).
  • What is high molecular weight polyacrylamide (PAM)?
  • Provided by the Springer Nature SharedIt content-sharing initiative High molecular weight (106–3 × 107 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity modifier and friction reducer in both enhanced oil recovery and high volume hydraulic fracturing.