Everyone knows PAM. It is a linear water-soluble organic polymer. It is insoluble in most organic solvents. It can be divided into anionic and cationic groups according to the groups on the ionic and molecular chains. Non-ionic and zwitterionic PAM, the product has good flocculation and is widely used in sewage treatment. The product also has considerable viscosity and can be thickened in many industries. The product is white granule or powder. Non-toxic and tasteless, it is used in papermaking, printing and dyeing, metallurgy, mining, coal washing, petrochemical, biomedicine, geological exploration and other industries.

Bioflocculant is a new product that has been researched in recent years. It is a microbial fermented polysaccharide with a variety of bioactive groups. It has a molecular weight of 100-300 million, and the solid is generally white. Or light yellow, with a large number of hydroxyl and partial carboxyl functional groups on the surface, can effectively generate hydrogen bonds with the colloidal particles in the wastewater, form a adsorption bridge, form a large floc, and accelerate the sedimentation of the suspended solids. This product is widely used in chemical, paper, printing and dyeing, pharmaceutical, aquaculture, textile and other industries. It is an efficient flocculant without secondary pollution.

Comparison of PAM and bioflocculant;

1) Both are polymer flocculants. The molecular weight of PAM is generally between 600 and -24 million. The molecular weight is relatively high. The molecular weight of bioflocculant is generally between 100 and 3 million, and the molecular weight is relatively low.

2) PAM has more product types than bioflocculants.

3) PAM is more widely used than bioflocculants.

4) PAM will remain in production, and the residue acrylamide has certain toxicity. The bioflocculant is a biological product obtained by fermenting sucrose by microorganisms. It has a non-toxic and harmless, no secondary pollution, and can degrade new water treatment agents, especially in industries with strict requirements on residues. Prospects such as purification of food, medicine, drinking water, cosmetics, sugar.

5) Both have their own superiority, and in some areas, the combination of the two is more effective.