石炭科学会議発表論文集
Online ISSN : 2423-8309
Print ISSN : 2423-8295
ISSN-L : 2423-8295
第39回石炭科学会議
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65.石炭フライアッシュ中のヒ素等重金属の水熱処理や抽出法による除去
星野 太作中島 常憲高梨 啓和大木 章
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p. 147-148

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The removal of arsenic from coal fly ash was attempted by hydrothermal treatment and chelating agent extraction. When fly ash was hydrothermally-treated at 200℃, ca.80% of arsenic was removed. For the wastewater generated, only the arsenic concentration was over the wastewater quality standards, while those of other elements met the standards. A decomposition product of pectin was found to be an effective aqueous chelating agent. By use of the product, arsenic was also efficiently removed from coal fly ash.

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© 2002 一般社団法人 日本エネルギー学会
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