Speaking of polyacrylamide, I believe many people will first think of sewage sludge treatment, but many people do not know why polyacrylamide can be used for sewage sludge treatment. It is well known that the nature of sewage sludge produced by different industries is different, and the treatment methods used are also different.

Generally, polyacrylamide can be simply divided into anions, cations, nonions and zwitterions. According to the different needs of the industry, the standard model needs to be selected correctly. If the wrong type of polyacrylamide is used, the sludge treatment effect may be very poor.

Generally speaking, cationic polyacrylamide is often used for organic sludge treatment, while anionic polyacrylamide is often used for inorganic sludge treatment. The sludge concentration will also directly affect the amount of polyacrylamide.

In addition, when treating sludge, pay attention to the size of flocs in the reaction process, and the molecular weight of polyacrylamide will affect it. During dehydration, polyacrylamide must fully react with sludge to produce better flocculation state and achieve better purification effect. It is required here that the sludge concentration and viscosity of the solution prepared with polyacrylamide must be appropriate.