The prepared solution of polyacrylenamine should not be stored for more than one day for cationic PAM and two days for anionic PAM to avoid degradation.
Precautions for use of polyacrylamide:
1. Powdered or granular polyacrylamide cannot be directly added to sewage. It must be dissolved in water before use, and then its aqueous solution shall be added to sewage in a certain proportion.
2. The water for dissolving products should be clean tap water, and the PH value of tap water can meet the requirements for preparing flocculant solution. 3. The water temperature should not exceed 60 ℃, normal temperature is enough.
4. The concentration of polyacrylamide PAM solution is generally 0.1~0.5%, that is, 15 grams of powder is added to 1 liter of water.
