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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Simple filtration and low-temperature sterilization of drinking water
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Simple filtration and low-temperature sterilization of drinking water

机译：饮用水的简单过滤和低温灭菌

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摘要

Waterborne infectious diseases are transmitted primarily through contamination of the water sources with excreta of humans and animals. The water treatment technologies available are fairly costly and not sustainable. Solar energy can be used effectively for sterilizing drinking water during clear and partially cloudy days. However, during mostly cloudy days the temperatures required may not be reached. A combination of traditional cotton-sari filtration and heating of water to simulate a solar boiler was evaluated as a water sterilization treatment. Experimental data showed that filtration of raw water through four-layered cotton-sari cloth (250 mu m) reduced the coliform count and further heating to sub-boiling temperatures (55-60 degrees C) for less than an hour resulted in complete inactivation of coliforms. The use of cloth filtration and low-temperature solar sterilization can be an effective, feasible and environmentally sustainable technique of disinfection to obtain clean drinking water.
机译：水传播传染病主要通过人畜排泄物污染水源而传播。现有的水处理技术相当昂贵且不可持续。在晴朗和部分多云的日子里，太阳能可以有效地用于饮用水的消毒。但是，在大部分多云的日子里，可能无法达到所需的温度。将传统的棉纱布过滤和水加热相结合以模拟太阳能锅炉的效果被评估为水灭菌处理。实验数据表明，通过四层棉纱布（250微米）过滤原水可减少大肠菌群的数量，并进一步加热至低于沸点的温度（55至60摄氏度）不到一个小时，从而完全灭活了大肠杆菌。大肠菌。使用布过滤和低温太阳能灭菌可以是一种有效，可行且在环境上可持续的消毒技术，以获得干净的饮用水。

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