REMOVAL OF As (V) BY USING BOTTOM ASH AS ADSORBENT

Meral Yildirim (), Nevin Karamahmut Mermer (), Funda Demir () and Emek Moroydor Derun ()
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Meral Yildirim: Yildiz Technical University, Istanbul, Turkey
Nevin Karamahmut Mermer: Yildiz Technical University, Istanbul, Turkey
Funda Demir: Yildiz Technical University, Istanbul, Turkey
Emek Moroydor Derun: Yildiz Technical University, Istanbul, Turkey

CBU International Conference Proceedings, 2017, vol. 5, issue 0, 1259-1265

Abstract: Industrial development brings waste problem which is a challenge for both human health and ecological cycle. Arsenic is a toxic and carcinogenic heavy metal that should be removed from drinking or waste water. In this study, an industrial waste of bottom ash was used as an adsorbent to remove As (V). To find an appropriate adsorption conditions, the adsorption temperatures and contact time were varied between 30 °C-50 °C and 5-180 min, respectively. The experimental results were fitted to the Langmuir and Freundlich isotherms. The highest values of n and KF for Freundlich isotherm were obtained for 30 °C and calculated as 0.432 and 0.006, respectively. According to kinetic studies, the kinetics of these experiments could be explained by pseudo-second order kinetic model, and the pseudo-second order rate constant was calculated as 0.034 g/mg.min, 0.033 g/mg.min and 0.030 g/mg.min for 30 °C, 40 °C and 50 °C, respectively. According to experimental results, bottom ash can be used for removal of As (V) from water sources.

Keywords: Adsorptionarsenic; bottom ash; ICP-OES (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:aad:iseicj:v:5:y:2017:i:0:p:1259-1265

DOI: 10.12955/cbup.v5.1106

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