... has high organic content, and is difficult to dewater. Cationic-polyacrylamide can be used to process, has small dosage and ... of paper, reducing fiber or cationic PAM paper reinforcing agent, being a water soluble cationic polymer containing carbamyl and the like, ... times or dozens of times better than using anionic-polyacrylamide, nonionic- polyacrylamide or inorganic salt since the waste water is ...