A cationic polymeric flocculant was chosen because its hydrolysate with positive ammonium group enhanced the adsorption of residual COD and improved the flocculation efficiency.

选择阳离子高分子絮凝剂，由于其水解产物带有正电荷铵盐基团，加强了残存COD的吸附，完善了絮凝分离过程。

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Flocculation and high efficient adsorption with modified fly ash was used for treating detergent wastewater.

利用改性粉煤灰絮凝、高效吸附作用处理洗涤剂废水。

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The results demonstrate that the distributions and transport of metal elements of SPM in the estuarine area are mainly flocculation, adsorption, desorption and precipitation, etc.

悬浮物中各种金属元素在河口的分布和迁移过程主要有絮凝、吸附、解吸和沉淀等。

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