mud dewatering agent cationic polyacrylamide cpam in spain

mud dewatering agent cationic polyacrylamide cpam in spain
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  • Is cationic polyacrylamide a good flocculant for sludge dewatering?
  • PAMA was an efficient flocculants for sludge dewatering and showed strong acid and alkali resistance. Cationic polyacrylamide (CPAM) has been the focus of research in environmental engineering field, particularly in sludge dewatering. However, poor stability of the existing cationic polyacrylamide has limited its application.
  • 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.
  • Is Pama a good flocculant for sludge dewatering?
  • 3. The sludge dewatering results demonstrated that PAMA is an efficient flocculants for sludge dewatering. After the origin sludge was treated by PAMA-25-15.1 at the dosage of 40 mg L −1 and 6 of pH, the minimum RT of the supernatant, FCMC, and SRF decreased to 4.70 NTU, 71% and 3.94 (10 12 m Kg −1 ), respectively.