In the sewage treatment process, polyaluminum chloride is sometimes used, and sometimes polyacrylamide is used, both of which have the effect of sewage treatment. Why are there two different varieties? Of course, there are different uses of the two, so what is the difference between polyacrylamide and polyaluminum chloride?

Polyaluminum chloride is an inorganic flocculant and has a good effect in treating sewage. It has a wide range of applications and is widely used in various water-based applications. It can form large alum flowers quickly and has good precipitation performance. The suitable pH range is wide, and the pH and alkalinity of the treated water are reduced slightly. When the water temperature is low, stable precipitation can be maintained. Alkalinity is higher than other aluminum and iron salts, and it has less effect on equipment erosion.

Polyacrylamide is an organic flocculant, also called PAM. Polyacrylamide is mainly used in sewage treatment, raw water treatment and industrial water treatment. In sewage treatment. Polyacrylamide can be used for sludge dehydration; in raw water treatment, polyacrylamide is used in conjunction with activated carbon to aggregate and clarify suspended particles in domestic water; in industrial water treatment, it is mainly used as a formulation agent. In wastewater treatment, the use of PAM can increase the utilization rate of water reuse cycles. In raw water treatment, the organic flocculant PAM was used instead of the inorganic flocculant, and the water purification ability could be increased by 20% without changing the settlement tank. Many large and medium-sized cities now have PAM to make up for severe water supply or poor water quality.