When choosing polyacrylamide PAM, there are several considerations to keep in mind：

First, determine the nature of sewage

The selection of polyacrylamide PAM depends on the nature of the sewage. For example, for organic wastewater, cationic polyacrylamide is generally used; for inorganic wastewater, anionic polyacrylamide is more suitable.

Second, determine the required degree of hydrolysis

The degree of hydrolysis of polyacrylamide has a great impact on its flocculation effect, so it is necessary to determine the required degree of hydrolysis according to the specific sewage treatment requirements.

Third, determine product specifications

Different specifications of polyacrylamide products have different requirements for dosage, hydrolysis time, etc., so it is necessary to choose the appropriate product specifications according to the actual situation.

Fourth, pay attention to the storage method

Polyacrylamide products need to be stored in a dry, ventilated and cool place, away from direct sunlight and high temperature, to avoid moisture and deterioration.

Fifth, pay attention to usage

The dosage of polyacrylamide needs to be determined according to the actual situation. Too much or too little use will affect the flocculation effect, so it is necessary to accurately control the amount used.

In short, choosing the right polyacrylamide PAM can improve the sewage treatment effect and reduce the impact on the environment, but the above points need to be paid attention to when choosing.