The existing sewer system in Kenli County is a combined sewer system, and sewage is put into adjacent river directly.
垦利县城区目前的排水体制是合流制排水体制，污水就近排入河道。
Combined with the sewage treatment engineering of Shanxi aluminum factory the composition of ABS tubing, its engineering character and its application in sewage treatment system are introduced.
结合山西省铝材厂污水处理工程实践 ，介绍了ABS管材的组成 ，所具有的工程特性及其在铝厂污水处理系统废酸系统中的运用。
The selection of the disposal methods of municipal sewage and the way of seperation of the old combined sewerage system need to be discussed and studied.
城市废水出路的安排和合流制沟道系统的分流化是两个需要深入研究的课题。
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