Effect of the milling solution on lead stabilization in municipal solid waste incinerator fly ash during the milling processes

doi:10.1016/j.wasman.2010.04.020

淡江大學機構典藏 > 工學院 > 水資源及環境工程學系暨研究所 > 期刊論文 > Item 987654321/77243

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题名:	Effect of the milling solution on lead stabilization in municipal solid waste incinerator fly ash during the milling processes
作者:	Sun, Chang-jung;Li, Ming-guo;Gau, Sue-huai;Chuang, Chia-jung
贡献者:	淡江大學水資源及環境工程學系
日期:	2011-02
上传时间:	2012-06-14 09:11:45 (UTC+8)
出版者:	Kidlington: Pergamon
摘要:	The wet milling process had been found to effectively stabilize lead in flyash. This study adopts this method and looks at the effect of different millingsolutions to improve the efficiency of leadstabilization. Different millingsolutions (water, phosphoric acid and ethanol) and different milling times (1, 24, 48 and 96 h) were selected as parameters. Since lead oxide can be identified by XRD in this experiment’s samples, 5% lead oxide was added to the extracted mixed flyash to make instrumental analysis easier. The experimental results indicate that the effect of stabilization of lead after milling could exceed 96%. During milling with water, considerable lead leached into the water in the initial stage (1 h) of the process, but a stable level was reached as the milling time increased. After milling with ethanol and 0.2 M phosphoric acids, the efficiency could exceed 93% after 1 h of milling time. The results of the sequential extraction procedure (SEP) results show that the residual fraction could be increased from 8.93% to 56.16% when a 0.2 M phosphoric acid solution was used. Clearly the choice of an appropriate millingsolution can enhance leadstabilization in the flyash.
關聯:	Waste Management 31(2), pp.318-324
DOI:	10.1016/j.wasman.2010.04.020
显示于类别:	[水資源及環境工程學系暨研究所] 期刊論文

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