Effects of Cationic Polyacrylamide and Cationic Starch on Aquatic Life
Effects of Cationic Polyacrylamide and Cationic Starch on Aquatic Life
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DOI：
10.1061/(asce)hz.2153-5515.0000467
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发表时间：
2019-10-01
影响因子：
2.7
通讯作者：
Lewis, Katharine E.
中科院分区：
文献类型：
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作者：
Duggan, Katie L.;Morris, Martina;Lewis, Katharine E.
含有聚丙烯酰胺絮凝剂的土工织物管广泛用于脱水应用。由于疏浚过程中固体浓度的变化，过量的絮凝剂有时会释放到环境中，可能产生毒性作用。本研究确定了阳离子聚丙烯酰胺 (CPAM) 和天然聚合物替代品阳离子淀粉 (C. Starch) 的最佳剂量。用最佳剂量和 50% 过量的每种化合物处理浆料样品，并测量残留聚合物浓度。过量的 C. 淀粉导致低残留（
Geotextile tubes with polyacrylamide flocculants are widely used in dewatering applications. Due to variations in solid concentrations during dredging, excess flocculant is sometimes released into the environment, where it might have toxic effects. This study determined optimum doses for a cationic polyacrylamide (CPAM) and a natural-based polymer alternative, cationic starch (C. Starch). Slurry samples were treated with optimum and 50% overdoses of each compound, and residual polymer concentrations were measured. Overdosed C. Starch resulted in low residuals (