Title of article
Mercury(II) Adsorption onto the Magnesium Oxide Impregnated Volcanic Ash Soil Derived Ceramic from Aqueous Phase
Author/Authors
Bhakta، J.N نويسنده Department of Environmental Engineering, Faculty of Agriculture, Kochi University, B 200, Monobe, Nankoku, Kochi 783 8502, Japan , , Munekage، Y نويسنده Department of Environmental Engineering, Faculty of Agriculture, Kochi University, B 200, Monobe, Nankoku, Kochi 783 8502, Japan ,
Issue Information
فصلنامه با شماره پیاپی سال 2011
Pages
10
From page
585
To page
594
Abstract
The present investigation attempted to develop the ceramic adsorbent media in order
to remove the mercury from aqueous phase. Two ceramics, akadama volcanic ash soil-ceramic (A-
ceramic) and improved magnesium oxide impregnated akadama volcanic ash soil-ceramic (MA-
ceramic) were produced from raw akadama volcanic ash soil by heating process to determine the
Hg(II) adsorption capacity. Adsorption experiments of ceramics were performed as a function of
contact time, solution pH, adsorbent dosage and adsorbate concentration following the batch mode
operation. Results clearly revealed the adsorption capacity (265±8.5 µg/g) of MA-ceramic is
significantly higher (~12 times) than that of the A-ceramic material. The adsorption was largely pH
dependent and neutral pH was associated with higher mercury adsorption capacity in both ceramics.
MA-ceramic showed 94% and 86% desorption and resorption capacities, respectively.
Journal title
International Journal of Environmental Research(IJER)
Serial Year
2011
Journal title
International Journal of Environmental Research(IJER)
Record number
1814746
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