在人类赖以生存的大千世界里,有一个个体微小而家族十分庞大的微生物王国,它们种类繁多,数量巨大。其中有不少能分解有机毒物或污水中的有害物质,能使污水得到净化。许多国家都倡导用微生物来处理废水,有的还找到了净化污水的廉价方法。英国科学家在马的粪便里发现了一种奇特微生物,不仅可除去污水中的沉积物,还能产生能量,使水温升到80℃,杀死 In the large-scale world in which human beings live, there is a tiny and huge family of micro-organisms. They have a wide variety of species and they have a huge number. Many of them can decompose organic poisons or harmful substances in the sewage, so that the sewage can be purified. Many countries have advocated the use of micro-organisms to treat wastewater, and some have found cheap ways to purify wastewater. British scientists discovered a strange microorganism in the manure of horses that not only removes sediment from sewage but also generates energy that raises the water temperature to 80°C and kills it.