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有这本书就够了 净水 - 站长搜索
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有这本书就够了 净水

趣科技 2015-08-18 23:09:47 转载来源: 网络整理/侵权必删

世界上大约有 6.63 亿人口,要喝上干净的饮用水是非常困难的事情。一项来自卡内基梅隆大学的研究,则将净化水源简化到打开一本书,撕下一页纸就可以了

世界上大约有 6.63 亿人口,要喝上干净的饮用水是非常困难的事情。一项来自卡内基梅隆大学的研究,则将净化水源简化到打开一本书,撕下一页纸就可以了。

这种特制的书页中含有银或铜的纳米颗粒,可以过滤水中超过 99% 的细菌,微量的银或铜颗粒会渗入水中,但含量都远低于安全限值。

研究人员从南非、加纳和孟加拉国等 25 个污染水源地取水实验,将撕下的书页放在漏斗上,然后把从河里、溪里和井里取来的水倒进去,过滤出来的水质几乎可达到美国自来水的标准。根据测试,一页书可以净化 100 升的水,一本书可以净化一个人 4 年所需的水量,相对于陶瓷过滤器、紫外线消毒等净水方法,“净水书”造价低廉,也更容易教授、使用。

发明者 Teri Dankovich 博士后希望能够加速该项研究的商业化,实现大规模印刷,这将成为第三世界国家和地区人民的福音。除此以外,目前还不清楚这项研究能否清除其他致病微生物,例如原生动物、病毒、寄生虫隐孢子虫等。

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