3005 豊島の修復技術事例(J25-2 環境問題と法制度(2),J25 環境問題と法制度,2005年度年次大会)

概要

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About 600,000 tons of illegally-dumped industrial waste in Teshima includes automobile shredder dust, waste oil, various kinds of sludge and contaminated soil around the site. Depending on the position, the characteristics of waste vary widely, such as particle size, moisture content, combustible content and the chemical composition of ash content, so, in this system, large-scale excavation and mixing is conducted with heavy machineries for the purpose of homogenization. As a result, stable and safe melting treatment is accomplished for more than 300 days per year. Slag, discharged from melting furnace, is harmless and similar to natural sand in its chemical composition, so efficiently utilized as concrete aggregate after safety and quality test conducted every 6 days. In this paper, the outline of the treatment system is reported with actual performance for last year.
2005-09-18