Polymerized ferric sulfate and polyacrylamide are very commonly used flocculants for water purification. Can these two agents be used at the same time? Will PFS and PAM react at the same time?
Polyferric sulfate is a kind of high-efficiency flocculant for water purification. Its main function is to flocculate the small substances in the sewage together, and then precipitate to the bottom, so as to achieve the function of purifying water source.
Polyacrylamide is a high molecular flocculant, its function is to make the flocculate in sewage bigger and accelerate the sedimentation of flocculated particles in sewage.
From the function of these two agents, we can conclude that PFS and PAM can be used together, and the effect will be better when used together. There's no chemical reaction when they're used together!
However, what should be noted here is that the dosing sequence of PFS and PAM when used together can not be put into the water at the same time, which can not achieve good results. So, which one do you put first, polyferric sulfate or polyacrylamide?
According to their working principle, PFS should be put into coagulation first, and then polyacrylamide should be added to accelerate sedimentation. When the tiny particles in water are too small, polyacrylamide should be put in first, and then PFS should be put in.
Can it be polymerized with polyacrylamide? Yes. Everyone in the use of attention to the order can be put.