Which Polyacrylamide Anion Or Cation Is More Effective in Sewage Treatment
Which polyacrylamide anion or cation is more effective in sewage treatment? Polyacrylamide is a chemical often used in the sewage treatment industry. It can effectively flocculate and precipitate impurities in sewage, and then filter and discharge it. Polyacrylamide is divided into three types: anionic and cationic. Among them, anionic and cationic polyacrylamide are different according to the charge they carry. There is no precise one of anionic and cationic polyacrylamide that is more effective. The process and links of using anionic and cationic polyacrylamide in sewage are different. Too same.
1. Anionic polyacrylamide is a water-soluble high molecular polymer. It is mainly used for flocculation, sedimentation and sedimentation clarification of various industrial wastewaters, such as steel plant wastewater, electroplating plant wastewater, metallurgical wastewater, coal washing wastewater, etc.; due to its molecular chain It contains a certain number of groups, which can form bridges between particles by adsorbing solid particles suspended in water or agglomerate particles to form large flocs through charge neutralization, so it can accelerate the settlement of particles in suspension, which has a more obvious effect. It can speed up solution clarification and promote filtration.
2. Cationic polyacrylamide is a linear polymer compound. Because it has a variety of active groups, it can form hydrogen bonds with many substances through affinity and adsorption. It is mainly suitable for dehydration treatment of urban sludge, papermaking sludge and other industrial sludge.
The specific type of polyacrylamide product to choose needs to be determined by a small trial selection experiment based on on-site sewage; the treatment effect of polyacrylamide mainly depends on the charge in the sewage and whether the polyacrylamide model is suitable, which depends on the selection. type accuracy. This has a lot to do with the selection range. The wider the range and the more models, the more suitable models can be selected.