Recommendation: Before using polyacrylamide, the optimal dosage can be determined by a small test.

1. Polyacrylamide flocculant cannot be directly added to sewage.It must be dissolved in water before use, and its aqueous solution must be used to treat sewage.

2. The water in which polyacrylamide is dissolved should be clean (such as tap water), not sewage.

3. The dilution ratio of polyacrylamide is recommended to be 0.1%-0.3%, that is, add 1g—3g of polyacrylamide to 1 liter of water.The recommended dissolution time is 30 minutes-60 minutes.

4. When adding the polyacrylamide product solution, the mixing with the treated solution should be accelerated. After the flocculant appears, the stirring speed should be slowed down to accelerate sedimentation.