主催: 日本エネルギー学会 石炭科学部会, 日本エネルギー学会 コークス工学研究部会
共催: 日本学術振興会 石炭・炭素資源利用技術第 148 委員会, 化学工学会 エネルギー部会, 重質油部会, ガス化部会, 燃焼部会
会議名: 第54回石炭科学会議
回次: 54
開催地: 秋田ビューホテル
開催日: 2017/10/18 - 2017/10/19
p. 112-113
Twenty different coal fly ashes generated by a 1000 MWe pulverized coal fired plant were investigated the leaching concentrations for As, B, and Se. Ten kind of fly ashes were over the environmental regulation; therefore the leaching control of trace elements is desired to expand ash utilization. Paper sludge ashes is promised as the leaching material because of high calcium content and a low cost. Eight kind of the paper sludge ashes were gathered from the different paper manifactures, the effect of the leaching control was studied. The No.3 paper suldge was suited to control the leaching of As, B, and Se, because the No.3 PS ash had haigh calcium content and high leaching concentration of Ca. For the fly ash H, 15.5 wt% mixture of the No.3 PS ash was required in the simultanous control for As, B, and Se.
