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1·An activated sludge system consists of an equalization basin, a settling tank, an aeration basin, a clarifier, and a sludge recycle line.

一个活性污泥系统包括一个均衡盆地，一个沉淀池，曝气盆地的，一个澄清和污泥回收线。

2·From the investigations, lack of nitrogen and phosphorus, oxygen deficiency in aeration basin of SBR, high concentration of sulfide in the wastewater is found.

调查分析得知该厂印染废水存在氮、磷缺乏现象，SBR曝气池存在缺氧现象，废水中硫化物含量较高。

3·In order to reduce the operation cost, a small dynamic test was done with the simulation of the operation conditions of the aeration basin, and calcined soda is being replaced by limewater.

为了降低运行成本，采用小型动态实验，模拟曝气池的运行条件，将石灰水代替纯碱以中和水质。