20 million anionic polyacrylamide industrial waste water at chile

20 million anionic polyacrylamide industrial waste water at chile
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  • What are acrylamide and polyacrylamide used for?
  • Acrylamide and polyacrylamide (PAM) are used in diverse industrial processes, mainly the production of plastics, dyes, and paper, in the treatment of drinking water, wastewater, and sewage. Besides inorganic form, acrylamide is formed naturally in certain starchy foods that were heated to cook a temperature above 120 °C for elongated time.
  • Can chitosan powder remove dyes from industrial wastewater effluents?
  • Chitosan powder combined with polyacrylamide gel can be used as an affordable option to remove dyes from industrial wastewater effluents, considering the high cost of commercial adsorbents. The datasets used and/or analyzed during the current study are available from the corresponding author upon reasonable request.
  • What is the difference between chitosan powder and polyacrylamide gel?
  • The treated wastewater using chitosan powder and polyacrylamide gel is clear (the chitosan powder achieved a high efficiency for dye removal at 94.1% using a small dose of 4.5 g/L, while the polyacrylamide gel reduced the required settling time from 8 h to 5 min).
  • 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).