Activated sludge method is an effective method for the wastewater treatment and has been widely applied and studied.

活性污泥法是污水处理过程的一种有效的方法，得到广泛的研究和应用。

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Presently, active sludge method, or the establishment of secondary sewage treatment plants has been mainly adopted to treat urban sewage.

目前，对城市污水的处理主要采用活性污泥法即兴建城市二级污水处理厂。

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The batch activated sludge method was used to determine autotrophs maximum growth rate. In addition, affecting factors were also investigated.

采用间歇式活性污泥法测定了自养细菌最大增长速率，分析了测定过程中的影响因素。

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The method uses biogas, which is produced when waste water sludge is broken down by microbes in a process known as anaerobic digestion.

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