Removal of As (III) from Aqueous Solutions Using Montmorillonite

Ansar Anjum, Punnuswamy Lokeswari, Manpreet Kaur, Monika Datta

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DOI: 10.4236/jasmi.2011.12004                

Abstract

Arsenic (III) adsorption has been studied as a function of concentration of arsenic (III) in the solution, pH of the solu- tion, contact time during the batch extraction process using montmorillonite (MMT) and surfactant modified MMT (CPC-MMT and CTAB-MMT) from aqueous solution It has been observed that up to 90% of arsenic (III) can be ex- tracted from a solution containing 100 ppm of As (III) at pH 8.0, within a contact time of 10 minutes. The lowest level of As (III) that could be extracted was found to be 0.4 ppm.

Keywords

Arsenic (III), MMT, Surfactant Modified MMT, Adsorption isotherm

Conflicts of Interest

The authors declare no conflicts of interest.

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