Why is polyacrylamide used in paper industry?

Polyacrylamide (PAM) in paper industry is widely used as retention agent, filter aid, homogenizer, and water treatment agent and so on. Its function is to improve the quality of paper, improve the pulp dehydration performance, improve the retention of fine fibers and fillers, and reduce the consumption of raw materials and environmental pollution.

Can polyacrylamide be used to treat pulp and paper mill wastewater?

SVI values of less than 70 ml g −1 are found for all polyacrylamide at their respective optimum dosage. Based on the cost evaluation, the use of the polyacrylamides is economically feasible to treat the pulp and paper mill wastewaters.

Can polyacrylamide be used as paper dispersant?

Polyacrylamide could be used as paper dispersant, paper residence filter aid. The paper fibers and fillers in pulp are hydrophobic and tend to flocculate into clusters. It is difficult to produce paper with uniform properties and good strength. The addition of polyacrylamide promotes the dispersion of paper fibers and the formation of paper.

What is polyacrylamide (PAM)?

Polyacrylamide (PAM), a versatile water-soluble polymer, plays a pivotal role in enhancing various processes within the paper industry. From pulp production to wastewater treatment, PAM proves to be an indispensable chemical aiding in the optimization of paper manufacturing.

Are cationic and anionic polyacrylamides effective in flocculation of pulp and paper mill wastewater?

The flocculation performances of nine cationic and anionic polyacrylamides with different molecular weights and different charge densities in the treatment of pulp and paper mill wastewater have been studied.

Can polyacrylamide be used alone in coagulation–flocculation process?

Based on the cost evaluation, the use of the polyacrylamides is economically feasible to treat the pulp and paper mill wastewaters. This result suggests that single-polymer system can be used alone in the coagulation–flocculation process due to the efficiency of the polyacrylamide.