Both wastewater feeding and sludge wastage were controlled by peristaltic pumps and timers.
废水输送和污泥量通过蠕动泵和定时器来控制。
This paper discusses two of these variables, residual sludge wastage, regurgitant sludge wastage, and figures out their different effect in the control process.
重点研究了污泥总量控制，分别讨论了剩余污泥排放量、回流污泥排放量这两个操作变量在调控污水处理过程中的表现。
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