絮凝物可以自然形成，但经常在分散胶质体系中加进化学絮凝剂时发生。
Flocs can occur naturally but often are generated from a dispersed colloidal system to which a flocculant chemical has been added.
综述了微细粒磁性颗粒(磁种)在水中对许多污染物具有吸附和絮凝作用，用一些物理和化学方法可使其作用范围扩大。
The fine particles (magnetic seeds) have the function of adsorbing and flocculating pollutants in water, the range of effects can be widened by several physical and chemical methods.
在相同PAFC投加量下，化学生物絮凝工艺对各项污染物的去除效果均显著优于传统的化学强化一级工艺，剩余污泥产量比后者减少10～15%。
Under the same PAFC dosage, the chemical-biological flocculation was superior to the chemically enhanced treatment process and its surplus sludge was less than the latter by 10-15%. ?
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