分析了在污水生化处理过程中活性污泥沉降性能下降的原因。
The reasons of the decrease of flocculating sedimentation of activated sludge in the process of bio chemical sewage treatment were analyzed.
文摘：分析了在污水生化处理过程中活性污泥沉降性能下降的原因。
Abstract: the reasons of the decrease of flocculating sedimentation of activated sludge in the process of bio chemical sewage treatment were analyzed.
聚磷菌的增殖使活性污泥比重增大，有助于发生恶性膨胀的污泥逐渐恢复沉降性能，维持活性污泥微膨胀。
Specific gravity of activated sludge was increased by proliferation of phosphorus accumulating organisms (PAOs), which helped to resume state of limited sludge bulking after excessive sludge bulking.
应用推荐