1.格柵:安裝在泵房集水井進口處的一組平行柵條,主要用以攔截污水中的漂浮物和粗大的懸浮物,以便減輕后續處理構筑物的處理符合,使之正常運行。
2.沉砂池:用以分離、去除污水中密度較大的無機顆粒,以免這些雜質影響后續處理構筑物的正常運行,是水泵、管道免受磨損和阻塞,減輕沉淀池的無機符合,改善污泥的流動性,以便于排放、運輸。
3.生化反應池:利用微生物的新陳代謝作用,創造有利于微生物生長、繁殖的良好環境,加速微生物的增殖及其新陳代謝生理功能,從而使污水中的污染物得以降解、去除、轉化和穩定,使之無害化的處理方法。
4.沉淀池:設置在生物處理構筑物之后,用于沉淀生物處理構筑物出水中的微生物固體。
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