Can cationic polyacrylamide be used in oilfield wastewater treatment?

Author to whom correspondence should be addressed. Cationic polyacrylamide (CPAM) solid particle is one of the most commonly used organic polymer flocculants in oilfield wastewater treatment, but it poses some problems, such as a slow dissolution rate and an easy formation into a “fish-eye” in the process of diluting into aqueous solution.

What factors affect the flocculation effect of cationic polyacrylamide (CPAM)?

Cationic polyacrylamide (CPAM) is a commonly used flocculant for water treatment. Factors that affect the flocculation effect and can be controlled manually include the type and dosage of CPAM, wastewater pH, stirring time and settling time, and their reasonable setting is critical to the flocculation effect of CPAM.

Why is polyacrylamide used in water treatment?

Polyacrylamide is ideal for water treatment because of its ability to increase viscosity and promote flocculation of particles. Flocculation is a process where suspended particles precipitate in a fluid to form a clump or floc. It is an essential process in water treatment.

Which ionic polyacrylamide is best for sewage treatment?

Anionic polyacrylamide can be categorized into strong, medium, and weak. This is according to their hydrolysis reaction. Cationic polyacrylamide is widely used for municipal sewage treatment. Its sludge dewatering qualities make it the best for sewage treatment. Cationic polyacrylamide flocculant is grouped depending on its levels of ionicity.

Does cationic polyacrylamide enhance algal harvest?

[Google Scholar] [CrossRef] Park, J.B.K.; Meerman, C.; Craggs, R. Continuous low dosing of cationic polyacrylamide (PAM) to enhance algal harvest from a hectare-scale wastewater treatment high rate algal pond. N. Z. J. Bot. 2019, 57, 112–124.

Which polyacrylamide is best for water purification?

PAM has good coagulation qualities that make it the best for water purification. Coagulation is all about changing a liquid to a solid or half-solid state by adding a specific chemical or coagulant. Polyacrylamide products also combine with water to produce insoluble hydroxides.