The sludge is passed under a vacuum pump and allows the water to pass through a discharge or recirculation drain.
用真空泵除去污泥的固体含量而该泥水则经排水渠或回流渠排出。
2
The waterfeeding recirculation header pipe will be set between water-feeding pump and deaeration water tank to fulfill requirements for start-up and low load operation of waterfeeding pump.