Application of PAC and PAM
PAC and PAM are two commonly used coagulants in water quality purification, and their functions and applications are different.
PAC (polyaluminum chloride) is an inorganic polymer coagulant prepared by hydrolysis of metal salts such as aluminum chloride and iron chloride. PAC has a low pH value, which can quickly precipitate suspended particles in water. At the same time, it has adsorption and bridging effects, allowing the suspended particles to aggregate and form larger flocs. PAC is mainly used to treat wastewater containing suspended solids and colloids, such as wastewater from industries such as pulp, printing and dyeing, leather, and pharmaceuticals.
PAM (Polyacrylamide) is an organic polymer flocculant prepared by free radical polymerization of monomers such as acrylamide and acrylamide. PAM has a high molecular weight and a long chain like structure, which can adsorb on the surface of suspended particles, causing their mutually exclusive charge reversal, and thus aggregate to form larger flocs. PAM is mainly used to treat wastewater containing pollutants such as suspended solids, organic matter, and heavy metals, such as wastewater from industries such as petrochemical, electroplating, and metallurgy.
The main function of PAC is to remove pollutants such as suspended solids and colloids from water, while also adjusting pH and ion concentration in water to improve water quality. PAC has a wide range of applications, suitable for wastewater treatment in different industries, and has good treatment efficiency and economy.
The main function of PAM is to remove pollutants such as suspended solids, organic matter, and heavy metals from water, while also improving the clarity and treatment efficiency of water. PAM has a wide range of applications and is suitable for wastewater treatment in different industries, but compared to PAC, its price is relatively high.
Overall, PAC and PAM are two different water purification agents, with different functions and applications. PAC is mainly used to remove pollutants such as suspended solids and colloids in water, while PAM is mainly used to remove pollutants such as suspended solids and organic matter in water. In practical applications, it is necessary to select appropriate reagents based on water quality and treatment requirements, and to combine multiple sewage treatment sites with pac and pam to achieve treatment efficiency and economy.