A new technology of high concentration organic chemical sewage treatment for COD and colour index is presented.

提出了一种处理高浓度有机化工废水中COD、色度的新技术。

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For chemical industry — The valve is applied to transport paste colloid, grain matter and chemical sewage, as well as waste water.

化学工业——用于粘带的糊剂、胶制体、颗粒状物及化学污水、废水等介质的输送。

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The reasons of the decrease of flocculating sedimentation of activated sludge in the process of bio chemical sewage treatment were analyzed.

分析了在污水生化处理过程中活性污泥沉降性能下降的原因。

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The site, on the banks of the Humber Estuary at Salt End already has a big chemical processor, a power station and a sewage treatment plant.

BBC: Yorkshire and Lincolnshire: Waste disposal