Water is an indispensable resource in human life, and in order to maintain the stability and safety of water quality, water treatment agents are widely used in the water treatment process. One of the common water treatment agents is polyacrylamide, and this article will introduce the principle of polyacrylamide and its application in water treatment.
Polyacrylamide (PAM) is a polymer with good water absorption, water retention and low irritation. Due to the presence of a large number of polar and non-polar groups in its molecular structure, polyacrylamide has good composite properties. Polyacrylamide can be obtained by chemical synthesis or biosynthesis.
Polyacrylamide is widely used in a variety of water treatment processes, including water purification, sewage treatment, seawater desalination, and wastewater treatment. It can play a variety of functions such as flocculation, sedimentation, filtration and sterilization, and can effectively remove suspended solids, particles, organic matter and microorganisms in water.
The main principle of polyacrylamide in the water treatment process is to play a role in purifying water quality by interacting with pollutants in water through its molecular structure and properties.
During the flocculation process, the non-polar groups of polyacrylamide are able to adsorb suspended solids and particles in the water, forming larger flocs. It interacts with particles in water, increasing the interaction forces between them, causing them to condense to form larger aggregates and promoting their sedimentation or filtration.
In the sterilization process, polyacrylamide reacts with the cell membrane on the surface of microorganisms, changing the permeability of the cell membrane, making bacteria, viruses and other microorganisms inactive and finally killed.
Polyacrylamide can also reduce the impact of organic pollutants on water quality by adsorbing organic matter. Its macromolecular structure and polar groups can interact with organic substances in water, so that organic substances are adsorbed and separated.
Polyacrylamide is a commonly used water treatment agent that purifies water quality by interacting with contaminants in the water during the water treatment process. Its characteristics include water absorption, water retention and good composite properties, making it a wide range of application prospects. By understanding the principle of polyacrylamide in water treatment, we can better understand the mechanism of its application and provide a basis for practical application.