Furthermore, just as the biological selector, feeding helps release the phosphorus, deoxidize the NO(subscript - subscript 3)-N in sludge layer, and prevent the filamentous bulking.

• 而且，沉淀期间进水所产生的效应与生物选择器的作用类似，即有助于磷的释放，将污泥层中的NO(上标-下标3)-N还原，抑制丝状膨胀。