【Key words】 : IOD； trial run； biological phosphorus removal； solid-liquid separation； sludge return；
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return sludge pump 回流污泥泵
sludge return rate 污泥回流速率
sludge return ratio 污泥回流比
Sludge return system 污泥回流系统
return sludge ratio 污泥回流比 ; 回流污泥率
rapid sludge return mechanism 快速污泥回流机理
return sludge 回流污泥 ; 称为回流污泥 ; 污泥回流
return activated sludge 返回活性污泥 ; 回流活性污泥
For the former, aim at the unsolved problem, we were engaged in the process adjustment and full-scale plant test. The content included:the adjustment of the sludge return rate in the hydrolytic tank;effluent return and sludge wastage in UBF.
对两相厌氧系统的研究工作主要是在工程项目调研的基础上，针对系统中需进一步完善和解决的问题，进行工艺调整和现场试验研究，主要内容有水解池污泥回流率调整、排泥和UBF反应器出水回流等。
参考来源 - 两相厌氧In this paper,beaker experiment was done by methods of sludge return,and carry out a highly efficient solid-liquid separation study of the dynamic test.
本文利用污泥回流方法进行了烧杯实验,并开展了高效固液分离器的动态实验研究。
参考来源 - 高效固液分离器应用于饮用水处理·2,447,543篇论文数据，部分数据来源于NoteExpress
The optimal operation condition to treat the raw water by sludge return method in various levels of turbidity has been found.
通过试验研究，找出了不同原水浊度情况下污泥回流的最佳运行工况。
In addition, sludge return from chemical bio-flocculation process can not only improve the removal effect, but also has some stabilization effect on the fluctuation of inflow quality.
在化学生物絮凝工艺中污泥回流不仅可以提高去除效果，而且对进水水质波动有一定的稳定作用。
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