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日本研制成一种可用人力把污水和海水变成饮用水的净化装置。它是一种用脚踩踏板来转动抽水泵,通过特殊的高分子膜过滤污水和被污染的海水的装置。用1分半钟就可解决3升的饮用水,便于在电力不足的发展中国家普及使用。最近孟加拉国已试验性地引进该装置。该净化装置的结构是由
Japan developed into a manpower to sewage and sea water into drinking water purification device. It is a device that uses foot pedal to turn the pump and filter the sewage and the polluted sea water through the special polymer membrane. With 1 and a half minutes to solve 3 liters of drinking water, easy to power in developing countries in widespread use. Bangladesh has recently introduced this device experimentally. The structure of the purification device is