Polyacrylamide and polyaluminum chloride contrast!

PAM (PAM) is an organic flocculant. According to the groups carried on the molecular chain, it can be divided into anionic PAM, cationic PAM, nonionic PAM and amphoteric PAM. PAM is mainly used in smelting, textile, printing and dyeing, coal washing, pharmaceutical, sugar purification, geological exploration, petrochemical, oil extraction and sewage treatment. In the sewage treatment, PAM mainly plays the role of adsorption bridge, and the interaction between charges makes the fine particles form larger flocs and settle them.

Polyaluminium chloride (PAC) is an inorganic polymer flocculant. It is produced by the bridging action between hydroxide ions and the polymerization of polyvalent anions. Pharmacy. Polyaluminum chloride is mainly used for the purification of surface water and groundwater, urban sewage treatment, and recovery of useful materials in industrial wastewater waste. It is also widely used in printing and dyeing, leather, paper making, coal washing, food processing, sugar night refining, cosmetics and other industries.

PAM and polyaluminum chloride are collectively referred to as flocculants, PAM is an organic flocculant, and polyaluminum chloride is an inorganic flocculant, which has a wide range of applications in various fields. In terms of sewage treatment, the two have their own advantages. Polyaluminium chloride has a wide range of applications and is suitable for a wide range of water. It is easy to form large silk flowers quickly and has good sedimentation performance. The suitable pH range is wide (5-9), and the pH and alkalinity of the water after treatment are reduced. When the water temperature is low, a stable precipitation effect can be maintained. The degree of alkalization is higher than other aluminum salts and iron salts, and has little effect on equipment erosion. PAM can increase the efficiency of wastewater treatment by 20% compared with polyaluminium chloride. Especially in sludge dewatering, PAM has its unique superiority. In the recycling of water, it can improve the recycling rate of water and reduce the enterprise. Operating costs. Especially in today's water scarcity and deteriorating water environment, PAM has shown more advantages in water treatment. In some respects, PAM is used in combination with polyaluminum chloride for better water treatment.