In the field of water treatment, the role of polyacrylamide flocculants is mainly reflected in sedimentation, flotation, and sludge dehydration when used on site.

When used for sedimentation or flotation, it is necessary to observe the height of the sedimentation tank (or suspended matter in the flotation tank), reaction rate, sedimentation rate (or floating rate), and effluent clarity.

When used for sludge dehydration, it is necessary to observe not only the reaction rate and effluent clarity, but also the size of the mud, the size of the flocculants, and the water content of the mud. Different processing techniques and operating conditions will affect the use and effect of the product.