Acacia nilotica leaves (MVM) were investigated as an adsorbent for removal of hazardous Cr(VI) from aqueous solution. The preparation, characterization and the adsorption properties of microwave-activated carbon from Acacia nilotica leaves are discussed. The adsorbent was characterized by FTIR and SEM studies. The applicability of the Langmuir model to MVM was proved by the high coefficient of determination. Eight error analysis methods, namely residual root mean square error (RMSE), chi-square (?2), sum of the square of the errors (ERRSQ), composite functional error (HYBRD), derivative of Marquardt's percent standard deviation (MPSD), average relative error (ARE), sum of absolute error (EABS) and average percentage error (APE) were used to evaluate the suitability of the adsorption isotherm. Desorption reveals that recovery of the metal from adsorbent is possible. The eco-friendly adsorbent MVM is expected to be an environmentally and economically feasible adsorbent for the removal of Cr(VI) from aqueous solution.

Applicability of error analysis on the study of hexavalent chromium removal using ecofriendly adsorbent prepared from Acacia nilotica leaves

243rd National Meeting (2012)

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