传统的制浆造纸将有大量废水排出须进行处理排放。
As known to all, It is necessary to deal with large a amount of effluent from the Conventionalprocess of pulping and paper-marking.
提出了基于活性污泥处理系统的模型，目的是优化能量消耗和提高废水排出质量。
A model based on activated sludge wastewater treatment systems was presented. The objective was to optimize energy consumption and improve effluent quality.
那个化工厂排出大量有毒的废水。
A lot of poisonous waste water comes from that chemical factory.
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