通常聚合物会被添加来增加固体截留（物质），溢流被再循环，浓缩污泥被抽取以用来进一步脱水和处置。
Polymer is normally added to enhance solids capture, overflow is recycled, and thickened sludge withdrawn for further dewatering and disposal.
它能从污水中去除溶解的和胶体的可生物降解有机物及能被活性污泥吸附的悬浮固体和其他一些物质。
It can remove soluble and colloidal biodegraded organic matter and suspended solid adsorbed by activated sludge from wastewater.
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