Detail Salty and Getting Fresh; Californian Water Technology   Oleh:  [s.n] Jenis: Article from Bulletin/Magazine Dalam koleksi: The Economist (http://search.proquest.com/) vol. 402 no. 8778 (Mar. 2012), page 48. Topik: Water Treatment; Water Supply; Water Conservation Ketersediaan Perpustakaan Pusat (Semanggi) Nomor Panggil: EE29.71 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel If California were not already so famous for Silicon Valley and Hollywood, it might be renowned for the cluster of water-technology firms in its San Diego County. The reverse-osmosis (RO) spiral module, the trick that underpins turning sea- and waste-water into potable stuff, was patented in San Diego in 1964. In places such as San Diego, which has measly and brackish groundwater and currently imports 90% of its water, the answer must be greater conservation, as much reuse as possible, with most of the rest coming from the sea. The first part, conservation, is hardly controversial any more. The second part, water recycling, has been a harder sell, because of what the industry calls the yuck factor. It doesn't help that Americans still use the term "toilet-to-tap" for recycling, even though properly treated sewage is nowadays completely clean. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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