①好氧池污泥营养料不足或者营养料比例不均衡 ②好氧池污泥负荷过高（二沉池出水混浊，

(1) insufficient nutrient material of aerobic pond sludge or unbalanced proportion of nutrient material (2) excessive sludge load in aerobic pool (two turbidity of effluent from sink pool,

COD高，好氧池泥水沉淀后上清液后细碎污泥，混浊） ③好氧池污泥负荷过低，曝气过度，污

COD high, aerobic pond sludge after precipitation of fine sludge after the supernatant, turbid) 3) aerobic pond sludge load is too low, excessive aeration, pollution.

泥自身氧化后产生的细碎污泥（好氧池COD去除率低，出水COD高） ④好氧池污泥负荷过低，

The fine-grained sludge produced by the self oxidation of mud (low removal rate of COD in aerobic pool and high COD of effluent) (4) the sludge load of aerobic pool is too low.

污泥停留时间长、曝气过度导致污泥絮凝性差（污泥结构松散但COD去除率高或不低）

Excessive sludge retention time and excessive aeration lead to poor flocculation of sludge (loose sludge structure but high or low COD removal rate)