淨係食水&空氣,呢兩樣嘢已經要移民外國
人哋北美洲的水喉水就咁飲都得,唔知幾清甜
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Considering that most modern urbanized cities fulfill these criteria, the next generation of water supply systems could consist of a freshwater supply coupled with a seawater supply for sustainable urban development.
David A. Reckhow, an environmental engineer at the University of Massachusetts, Amherst, says the study is important and breaks new ground in determining how using seawater for toilet flushing could affect ecosystems. “It’s a good indication for the future of the technology,” he says. Despite the challenges of building a separate distribution system, he says, “more coastal communities should consider this.” He notes, however, the study provides a baseline that should be followed up, especially with chemical analysis of the disinfection by-products present.