Detail Hot Stuff   Oleh:  [s.n] Jenis: Article from Bulletin/Magazine Dalam koleksi: The Economist (http://search.proquest.com/) vol. 403 no. 8787 (Jun. 2012), page S15-S16. Topik: Radioactive Wastes; Nuclear Engineering; Research Ketersediaan Perpustakaan Pusat (Semanggi) Nomor Panggil: EE29.72 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel The accident at the Fukushima nuclear power-station in Japan last year, the worst since the explosion at Chernobyl in 1986, has led many countries to reconsider their commitment to nuclear power. It has also drawn new attention to the enduring problem of dealing with nuclear waste. Around 270,000 tonnes of high-level waste, mostly spent fuel, are in temporary storage around the world. Another 10,000 tonnes of waste are added each year, according to the World Nuclear Association, an industry body. Dealing with nuclear waste does not just mean preventing it from doing harm today, whether as the result of accident, malicious intent or natural disaster. It also means ensuring that waste does not poison future generations--people who discover nuclear waste in the far future may not realise what it is--and doing so in a way that is acceptable to today's taxpayers. There are essentially three approaches: bide your time and wait for technology to improve; bury the waste somewhere secure; or reprocess it into new fuel, greatly reducing the amount of waste left over. The Australian Nuclear Science and Technology Organisation has devised a process using heat and high pressure to make synthetic rock out of radioactive waste and minerals including calcium, titanium and zirconium. Called SynrocANSTRO, it reduces radiation by "locking it up safely in minerals", says Gavin Atkins, a spokesman for the government agency. America's Department of Energy plans to use the process to dispose of radioactive powder in Idaho left over from the extraction, decades ago, of uranium from spent fuel. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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