Oct 15, 2019 · 1. Introduction. Anionic polyacrylamide (APAM) is a water-soluble polymer mainly used in flocculation sedimentation and clarification treatment for various industrial wastewaters, such as electroplating wastewater [1,2], metallurgy wastewater [3,4], coal washing wastewater [], mineral processing wastewater [], and sludge dewatering wastewater [7,8], as well as drinking …
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