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http://dx.doi.org/10.14478/ace.2015.1099

A Study on the Leachate Characteristics of Heavy Metals from MSW Bottom Ash Solidified with Stabilizing Reagents  

Lim, Jong-Wan (School of Environmental Engineering, University of Seoul)
Dong, Jong-In (School of Environmental Engineering, University of Seoul)
Publication Information
Applied Chemistry for Engineering / v.26, no.6, 2015 , pp. 692-697 More about this Journal
Abstract
In this study, the reduction efficiencies of leachate heavy metal levels were investigated by adding $Al_2O_3$ and CaO to the bottom ash to observe their effects on the heavy metals leachate reduction efficiency. The ratio of $Al_2O_3$ and CaO contents were varied by 10~40% (W/W) alongside different curing time of 7 and 28 days. The reduction efficiencies of leachate heavy metal levels were estimated to be 69.3% for Cu and 52.1% for Pb during the curing time of 7 days. For the curing time of 28 days, the efficiencies changed to 85.2 and 100% for Cu and Pb, respectively. It was thus confirmed that the high reduction efficiency could be obtained as the curing time increased.
Keywords
bottom ash; stabilization/solidification; heavy metal; CaO; $Al_2O_3$;
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Times Cited By KSCI : 3  (Citation Analysis)
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