It is emphasized that aeration, sludge retention time and external carbon addition have been identified as effective control methods.
在控制策略方面，强调了曝气、污泥停留时间和外碳源补加等有效的控制手段。
Sludge Retention Time (SRT), which was an important parameter in activated sludge process design and operation, has shown more effect than other parameters.
污泥龄（SRT）作为活性污泥法设计与运行的参数已显示出比其它参数更加重要。
This paper reviews the design method of membrane bioreactor, including determining hydraulic retention time and sludge retention time, choosing sludge concentration and analyzing the process economy.
综合论述了膜生物反应器的设计方法，包括确定最佳水力停留时间、污泥停留时间、污泥浓度，经济性分析。
During the start-up process, the solids of sewage sludge accumulated continuously in ASBR and kept longer solid retention time (SRT), helpful to enhance the treatment efficiency.
启动过程中污泥固体物质在ASBR中不断积累而保持较高的固体停留时间(SRT)，有助于提高处理效率。
Field testing has show that a 12-hour wastewater retention time will yield four to six months of continuous operation before removal of sludge for ultimate disposal.
现场试验表明在污泥去除最终处理前12个小时的保持时间可以产生4- 6个月的连续运行。
Field testing has show that a 12-hour wastewater retention time will yield four to six months of continuous operation before removal of sludge for ultimate disposal.
现场试验表明在污泥去除最终处理前12个小时的保持时间可以产生4- 6个月的连续运行。
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