Treating wastewater is a good way to provide fresh water for us.

处理废水是为我们提供淡水的一种好方法。

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Water pinch technology can save fresh water and reduce wastewater in industry and has practicality and better application prospect.

水夹点技术在工业用水节约和废水减量方面具有实用价值和较好的应用前景。

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Water cascade analysis(WCA) technology was used to synthesize water use for continuous process, determine water pinch and minimize fresh water and wastewater.

利用水级联分析法对连续过程的用水进行分析，确定过程的用水夹点和最小新鲜水用量，并使过程产生的废水最小。

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What is required is to make sure that the drilling fluids and frack wastewater do not come in contact with the fresh water aquifers when the wells are being drilled, completed, or produced.

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Levels of phosphates in fresh waterways can be much higher than normal because of contamination from municipal and domestic wastewater, whether you're hooked up to a sewer or have a septic system, says Helen Suh MacIntosh, an associate professor in environmental health at Harvard University.

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