Application of QUANSEN cationic PAM in soybean protein wastewater treatment

- May 13, 2019-

Recently, a listed company in Shandong Province, which produces soybean protein, used cationic PAM to treat sewage, but the mud was not dried and the dosage was large.

After field investigation and analysis of the process, QUANSEN experts believe that the cationic PAM used by the company now has problems in type selection and selection of cationic degree and molecular weight.

The company production site is using a Cascade Separator of sludge dewatering, dissolving equipment is a 6 cubic automatic dosing device, corresponding to a Cascade Separator of dewatering equipment, due to production expansion, add 2 Cascade Separator dewatering equipment, but cationic PAM dissolved equipment does not increase, dividing the original equipment modification, internally divided into three parts, each part is stirring, drug dissolved after the overflow at a time.

After the further selection of agents by QUANSEN experts and the analysis of production process equipment, the cationic PAM of QUANSEN was selected to reduce the ion degree and molecular weight.



By comparing the agents before and after the QUANSEN cation PAM replacement, we compared and analyzed the mud discharge of three of the equipment.The results showed that the dosage of the cationic PAM decreased by 30% and the water content of sludge dehydration decreased by 30%.


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Therefore, in the field application of polyacrylamide PAM, we should not fall into the mistake of only considering the high molecular weight and high ionic degree. We must consider the on-site desilting equipment, whether it is centrifuge, plate frame, belt machine or Cascade Separator machine, and also consider the ability and dissolution time of the PAM dissolving equipment to deal with the chemical.The beaker experiment in the laboratory is an essential prerequisite.