polyacrylamide used as flocculant in sewage treatment in russia

polyacrylamide used as flocculant in sewage treatment in russia
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  • Why is polyacrylamide used in sewage sludge treatment?
  • As mentioned, one of its main fields of application is the usage as flocculation agent in wastewater treatment and sludge dewatering processes [9, 10]. Therefore, it is a common constituent in sewage sludges. The application of sewage sludge conditioned with polyacrylamides results in the emission of these polymers into soil.
  • Which polyacrylamide cationic flocculant is used for SS thickening?
  • Polyacrylamide flocculants are most often used in wastewater treatment and utilization of sewage sludge to improve the separation of the solid and liquid phases [ 13, 14, 15 ]. In our earlier experiments, different concentrations of the polyacrylamide cationic flocculant Praestol 650 (PAM) were used for SS thickening before batch-mode AD.
  • What factors affect the flocculation effect of cationic polyacrylamide (CPAM)?
  • Cationic polyacrylamide (CPAM) is a commonly used flocculant for water treatment. Factors that affect the flocculation effect and can be controlled manually include the type and dosage of CPAM, wastewater pH, stirring time and settling time, and their reasonable setting is critical to the flocculation effect of CPAM.
  • Can polyacrylamide based flocculants be detected at low concentrations?
  • This study opened the possibility to detect polyacrylamide based flocculants even at low concentrations in complex matrices, hence an application to environmental samples has become feasible. Data availability All data generated and analysed during this study are included in this published article.