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Title: Earth melter and method of disposing of feed materials

An apparatus, and method of operating the apparatus, wherein a feed material is converted into a glassified condition for subsequent use or disposal. The apparatus is particularly useful for disposal of hazardous or noxious waste materials which are otherwise either difficult or expensive to dispose of. The apparatus is preferably constructed by excavating a melt zone in a quantity of soil or rock, and lining the melt zone with a back fill material if refractory properties are needed. The feed material is fed into the melt zone and, preferably, combusted to an ash, whereupon the heat of combustion is used to melt the ash to a molten condition. Electrodes may be used to maintain the molten feed material in a molten condition, and to maintain homogeneity of the molten materials.
  1. (Richland, WA)
Issue Date:
OSTI Identifier:
Battelle Memorial Institute (Richland, WA) PNNL
Patent Number(s):
US 5354355
Contract Number:
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA
Country of Publication:
United States
earth; melter; method; disposing; feed; materials; apparatus; operating; material; converted; glassified; condition; subsequent; disposal; particularly; useful; hazardous; noxious; waste; otherwise; difficult; expensive; dispose; preferably; constructed; excavating; melt; zone; quantity; soil; rock; lining; fill; refractory; properties; fed; combusted; ash; whereupon; heat; combustion; molten; electrodes; maintain; homogeneity; molten materials; preferably constructed; molten condition; feed material; waste material; particularly useful; waste materials; feed materials; molten material; melt zone; fill material; earth melter; noxious waste; glassified condition; /75/266/405/588/