With the Municipal Sewage treatment Plants discharge more and more sludge, the sludge has become a new solid waste pollution on the environment, so the sludge treatment is necessary.
随着城市污水处理厂排放的剩余污泥越来越多，污泥已经成为一种新的固体废弃物，对环境造成了污染，因此对污泥进行处理是非常必要的。
It is urgent to perfect sewage pipeline system and to build municipal wastewater treatment plants. Oxidation ditch process is the first choice of possible ways.
认为在三峡库区区县完善排水管网系统和建设城市污水处理厂迫在眉睫，氧化沟工艺不失为三峡库区区县污水处理工程的首选工艺。
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