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Additional recommended knowledge
Geomelting also known as the Amec process involves mixing nuclear waste with soil or other "glass-formers" in large, lined metal tanks. The mix - 20 per cent waste and 80 per cent soil - is heated through two graphite electrodes at temperatures of up to 3,000C. Gases, mostly carbon dioxide and traces of hydrocarbons, are drawn off and treated separately. The molten substance is then allowed to cool and forms a large glass block that is harder than concrete.
The process, known as vitrification, was devised by the Battelle research institute in Ohio, which also invented the photocopier and the compact disc.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Geomelting". A list of authors is available in Wikipedia.|