Polyacrylamide (PAM) is an organic flocculant. According to the different groups on the molecular chain, it can be divided into anionic polyacrylamide, cationic polyacrylamide, non-ionic polyacrylamide and amphoteric polyacrylamide. Polyacrylamide is mainly used in Water Treatment Chemicals, smelting, textile, printing and dyeing, coal washing, pharmaceutical, sugar purification, geological exploration, petrochemical, petroleum exploitation and sewage treatment. In sewage treatment, polyacrylamide mainly plays the role of adsorption bridge, the interaction between charges, so that small particles form larger floc, so that it settles.
Polyaluminum chloride (PAC) is a kind of inorganic polymer flocculant. Due to the bridging effect between hydroxyl ions and the polymerization of polyvalent anions, the inorganic polymer water treatment agent with high molecular weight and high charge is produced. Polyaluminum chloride is mainly used for the purification of surface water and groundwater, urban sewage treatment, and the recovery of useful substances in industrial wastewater waste residues. It is also widely used in printing and dyeing, leather, paper making, coal washing, food processing, sugar refining, cosmetics and other industries.
Polyacrylamide and polyaluminum chloride are collectively referred to as flocculants, polyacrylamide is an organic flocculant, polyaluminum chloride is an inorganic flocculant, both have a wide range of applications in various fields. In terms of sewage treatment, both have their own advantages. Polyaluminum chloride has a wide range of applications and is widely adaptable to water. It is easy to form large alum flowers quickly and has good precipitation performance. The suitable PH range is wide (5-9), and the PH value and alkalinity of the treated water decrease little. When the water temperature is low, it can still maintain a stable precipitation effect. The alkalization degree is higher than other aluminum salt and iron salt, and the erosion effect on the equipment is small. Polyacrylamide in sewage treatment than polyaluminum chloride can improve the efficiency of 20%, especially in sludge dewatering, polyacrylamide has its unique advantages, in the recycling of water, can improve the recycling rate of water, reduce the operating costs of enterprises. Especially in the shortage of water resources and the deterioration of water environment, polyacrylamide has shown more advantages in water treatment. In some ways, the combination of polyacrylamide and polyaluminum chloride can achieve better water treatment results.
Henan Hongze Environmental Protection Technology Co., Ltd
