它是一种针对印染厂污水的脱色沉淀治理的新型药剂。
It is a printing and dyeing mill effluent decolorization for precipitation of a new type of pharmaceutical treatment.
城市污水处理厂污泥浓缩脱水的药剂消耗是主要的运行费用。
Quite a number of expenses were paid for chemical consumption in thickened sludge de-watering operation in municipal wastewater treatment plant.
地表水处理厂通常提供添加2-3种除味除臭的加药设备，所以操作人员可以选择最有效的药剂。
In surface-water treatment plants equipment for feeding two or three taste- and odor-removal chemicals is usually provided, so the operator can select the most effective chemicals.
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