Coal Washing Pam Flocculant Polyacrylamide Powder C3H5NO

Pam Chemical Water Treatment Polyacrylamide For Coal Washing Wastewater Treatment

The CAS number of polyacrylamide is 9003-05-8, and the molecular formula is (C3H5NO)n. Polyacrylamide is a linear organic polymer and a polymer water treatment flocculant product. It can specifically adsorb suspended particles in water, play a role in connecting and bridging between particles, so that small particles can form larger Flocs, speed up the flocculation speed. settlement. This process is called flocculation. Due to its good flocculation effect, PAM is widely used in sewage treatment as a flocculant in water treatment.

Due to various reasons, the nature of coal is also very different, which is obviously different in the coal washing process. The properties of coal formed in different geological ages are different. When the geological age of coal formation is relatively short, the ash and impurity content of raw coal is relatively high. During coal washing, the concentration of wastewater generated is relatively large. We call such coal washing wastewater 

In view of the characteristics of high-concentration coal washing wastewater, we have concluded the following treatment methods through a large number of experiments: first add lime or calcium carbide slag (the ingredients are calcium oxide) to the wastewater to neutralize the negative charge in the wastewater and destroy the stability of the water body Performance, to achieve the purpose of mud-water separation. The sedimentation speed of the suspended solids in the wastewater treated in this way is very slow, it is difficult to achieve complete precipitation, and it takes a long time. Usually, it is necessary to add polyacrylamide. Polyacrylamide has a long molecular chain with different groups on the molecular chain. The long molecular chain can adsorb suspended particles in wastewater, and the suspended particles collide with each other to form larger flocs and settle. The sedimentation speed is fast, and the mud and water are separated completely.
According to many years of experience, the treatment of coal washing wastewater generally uses anionic polyacrylamide or nonionic polyacrylamide, and a few of them use cationic polyacrylamide. It is recommended that when using a flocculant, you must first select the flocculant to avoid unnecessary waste.