Journal of Food, Agriculture and Environment
Vol 11,
Issue 1,2013
Online ISSN: 1459-0263
Print ISSN: 1459-0255
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Lead removal from aqueous solution by bottom ash
Author(s):
Gabriela Buema 1,
Sorin Mihai Cimpeanu 2, Daniel Sutiman 1, Roxana Dana Bucur 3, Lacramioara Rusu 4, Igor Cretescu 1, Ramona Carla Ciocinta 3, Maria Harja 1*Recieved Date: 2012-09-16, Accepted Date: 2013-01-24
Abstract:The purpose of this study was to evaluate the potential of ash waste in removal of Pb(II) ions from synthetic aqueous effluents. A low cost and effective adsorbent was used, power plant ash, for the removal of Pb(II). The maximum removal degree was obtained for pH value over 9. Kinetics study showed that removal degree was 83% after 10 min of contact (vessel with agitation), and it increased at 98% after 90 min. In the presence of lead ions, the natrium ions from ash did not dissolve; on the other hand the content of calcium ions from the liquid phase was increased. The retaining ability of the ash sample was 20 mg/g. The retaining ability of the samples was mainly attributed to the amorphous material, to the microporous minerals and to the relatively high percentage of unburnt coal, resulted during the combustion of the lignite. The ash waste in this study showed very good retaining capacity in comparison with the other adsorbents available in the literature.
Keywords:Adsorption,
lead, removal, bottom ashJournal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 1
Category: Environment
Pages: 1137-1141
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