一、概述当前世界各国由于工农业的发展和人民生活水平不断提高,普遍出现了水源污染和水资源不足问题。解决这个问题,目前可采用三种方法。第一种考虑采取远距离引水方案,例如我国的北京(水源九厂从怀柔水库引水),天津(引滦济津)、青岛(引黄济青)、大连(从碧流河水库引水)、上海(黄浦江上游取水)等地。但这一方案,不 I. Overview In the current world, due to the development of industry and agriculture and the continuous improvement of people’s living standards, water pollution and water shortages have generally emerged. To solve this problem, three methods are currently available. The first is to consider long-distance water diversion schemes, such as Beijing in China (water source No. 9 from Huairou Reservoir), Tianjin (lead to Jijin), Qingdao (quotation of Huanghuangqing), Dalian (water diversion from Biliuhe reservoir), and Shanghai ( Upper reaches of the Huangpu River take water) and other places. But this program does not