Effluents from sewagedisposalplants are used in some areas both for irrigation and for the nutrients contained.
废水从污水处理植物是用在一些地区的灌溉与两种营养的火势已得到控制。
2
Note: ability to Dispose of Sewage was second grade and better disposalplants design disposal capability.
注:污水处理能力为二级以上污水处理厂设计能力。
3
Sewage treatment plants yield lots of sewage sludge. The sludge has complex composition, containing a variety of bacteria, and then the improper disposal is bound to cause secondary pollution.