1-1-2 石炭燃焼灰に含まれる微量元素の溶出とその抑制(1-1 微量元素・燃焼,Session1 石炭・重質油等,研究発表)

概要

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The elution of hazardous trace elements from coal fly ash (CFA) samples was examined. When CFA samples were subjected to the notification No. 46 of the Japan environment agency leaching test, the elution amount of B, Cr, and Se from original-CFA exceeded the standards of soil. In order to control the elution of theses elements, the acid washing was performed for CFA samples. The elution of B and Cr from CFA was effectively reduced by 0.1M HCl washing. However, the elution of Se from washed CFA was still over the standard. Also, the excess amount of As elution was observed from washed CFA sample.
2011-08-09