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。
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.
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。
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.
丹东市污水治理工程项目科研已经批准，部分管网已铺设，拟通过引资建设污水处理厂。
The project of Dandong City sewage treatment works has been approved. The part of pipe network has been laid. It is planned to construct the sewage treatment works by attract the investment.
丹东市污水治理工程项目科研已经批准，部分管网已铺设，拟通过引资建设污水处理厂。
The project of Dandong City sewage treatment works has been approved. The part of pipe network has been laid. It is planned to construct the sewage treatment works by attract the investment.
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