After this test, we can obtain the result of assuring the water quality after filtration.

通过试验，得出保证滤后水水质的试验结果。

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Luffa water placed one night, after filtration with gauze look, plus points, glycerin and alcohol can be used.

丝瓜水放置一夜后，用纱布过滤一下，再加点甘油和酒精就可以使用了。

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After sampling, the separation between coal ash and water is implemented by the measures of rapid centrifugation and vacuum filtration, in order to prepare the specimen for testing.

取样完成后，迅速通过离心、快速密闭过滤措施，实现灰与水的分离，从而终止体系中所发生的沉淀反应，制取清水样品供测试。

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Michael Pritchard, a British inventor, served it to me after running it through his Lifesaver ultra filtration water bottle.

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"The bacteria concentration after filtration depends on the initial concentration of bacteria in water, " said developer Dr Cui of Stanford University.

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And maybe after only one filtration you will get 'safe' water.

CNN: Nanotech and 'tea bag' to clean up drinking water