When treating triamiphos waste water by anaerobic fluidized bed process the NH3-N content in raw waste water must be reduced and nutrition ratio be adjusted.

采用厌氧流化床工艺处理三唑磷农药废水，必须降低原水中NH_3—N含量，调整营养比例。

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Thousands of litres of waste water drained from raw tofu was once pumped daily from factories around the village into nearby rivers, befouling waterways and contaminating rice fields downstream.

在此之前，每天制造生豆腐产生的成千上万升废水从村中各处的作坊排放到附近的河流中，污染了河流和下游的稻田。

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Technological conditions of calcium lactate production with wheat starch waste water as a fermentation raw material were studied.

本文对小麦淀粉废水糖化液的乳酸钙发酵与提取条件进行了研究。

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