Pollution load of city sewage has already exceed the sewage of industry pollution load, so the disposal technology optimizing became an important problem of dealing with city sewage nowadays.
城市生活污水污染负荷已超过工业废水污染负荷，处理工艺的优化就成为当今城市污水处理的重要课题。
Pollution load of city sewage has already exceed the sewage of industry pollution load, so the disposal technology optimizing became an important problem of dealing with city sewage nowadays.
城市生活污水污染负荷已超过工业废水污染负荷，处理工艺的优化就成为当今城市污水处理的重要课题。
应用推荐