Why Is It Necessary To Use Flocculant PAM In Sewage Treatment?
Polyacrylamide (PAM), a linear water soluble polymer, is a very important role in the field of water treatment due to the high molecular weight, water-soluble, regulation of molecular weight and various functional modification.
PAM and its derivatives can be used as effective flocculants, thickening agent, drag reduction agent, widely used in water processing, paper making, petroleum, coal, geology, construction and other industrial sectors.
In groundwater, surface water and sewage, impurities and pollutants usually exist as many particles which is too tiny to settle under gravity.
Because natural sedimentation has been unable to meet the requirements, with the aid of chemicals accelerate the settlement of technology has been applied in production. For example, PAM molecule absorbs on several particles and make bigger floc, therefore, settlement of particles are accelerated.
Compared with the inorganic flocculant, PAM has severals important advantages: many varietions for various conditions, high efficiency, less dosage, less sludge generated, easy post-treatment. This makes it the most ideal flocculant.