Three mistakes that people make when using cationic polyacrylamide

Error 1: When using cationic polyacrylamide, is the higher the concentration, the better the flocculation and the better the effect?

Actually, the concentration of cationic polyacrylamide is not determined by itself, but depends on the concentration of sewage sludge. If the impurities in sewage are too large, the concentration of cationic polyacrylamide should be increased appropriately when it is allocated. Otherwise, the concentration of cationic polyacrylamide is too large or too small will affect its use effect. 。 So Yongkun suggests that you do a small experiment to determine a reasonable dose before using it.

Error 2: When using cationic polyacrylamide, is the higher the molecular weight, the better?

This is also a wrong point of view, many customers feel that the larger the molecular weight of cationic polyacrylamide, the better the flocculation effect, the better the effect achieved. But you should understand that the quality of sewage and wastewater is different. Some are acidic, some are alkaline, some are oily, some are sandy, and some are colored. So not all sewage problems, cationic polyacrylamide can solve, or need to do experiments to determine their own needs, in order to solve the problem and reduce costs.

Error 3: When using cationic polyacrylamide to make water-soluble solution, is the longer the stirring time, the better the effect?

This view is very wrong. The appearance of cationic polyacrylamide is white crystalline particles, generally between 60 and 80 meshes. It should be fully dissolved in use. The mixing time should not be less than 30 minutes, and the mixing time should be prolonged when the temperature is low in winter. Therefore, too long or too short stirring time will lead to cationic polyacrylamide in sewage can not effectively carry out rapid flocculation.