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論文投稿 Elution Reduction of Hazardous Substances by Solidification of Coal Ash

作成年度 2006年度
論文名 Elution Reduction of Hazardous Substances by Solidification of Coal Ash
論文名(和訳)
論文副題
発表会 5th International Congress on Environmental Geotechnics(第5回環境地盤工学国際会議)
誌名(No./号数)
発表年月日 2006/06/26 ~ 2006/06/30
所属研究室/機関名 著者名(英名)
寒地地盤チーム佐藤 厚子(SATOH Atsuko)
寒地地盤チーム西本 聡(NISHIMOTO Satoshi)
北見工業大学鈴木 輝之(SUZUJKI Teruyuki)
抄録
In response to calls for a recycling-oriented society、 technology has been developed for [*]effectively utilizing coal ash generated by coal-fired power plants as a material for civil [*]engineering works. However、 leaching of hazardous substances from some ash exceeds the [*]Japanese standards for environmental soil quality. This means that some types of coal ash [*]cannot be used as a soil material as they are. We examined whether it is possible to reduce [*]leaching by solidifying coal ash. In the examination、 the leaching of hazardous substances [*]was measured for coal ash solidified after mixing with water and blast furnace cement B [*]and for coal ash solidified after mixing only with water. [*]Also、 the change in leaching of hazardous substances over time was measured. [*]The examination found that there are cases in which the leaching of hazardous substances [*]was reduced to within the environmental standard、 and that some types of coal ash meet the [*]environmental standard and can be used as soil material after solidification. It was also [*]found that the leaching of some hazardous substances changes over time.
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