The liquid sludge water discharged from waterworks has to be treated. The sludge discharge of waterworks could be divided into two parts: the liquid sludge water and the solid drysludge.
实施自来水厂排泥水处理，首先需要确定自来水厂的污泥量，就此将污泥量分为排泥水量和干污泥量。
2
Murray predicts that energy embodied in the dry solids portion of fecal sludge can be equivalent to coal; in other industries it would replace oil or residual fuel oil.
默里预测蕴含在粪便污泥干固体部分的能量与煤炭中能量持平，在其他行业，这将取代石油或剩余燃油。
3
If you do not carry out maintenance regularly, watch movement in the sludge accumulated too much, will appear dry, it will slowly increase the friction between the gear train.