Inderscience Publishers

Inderscience Publishers

Arsenic(III) removal by adsorption on sawdust carbon

Studies on the removal of As(III) by adsorption on sawdust and sawdust carbon have been carried out at room temperature (25 ± 1°C). The adsorption isotherm of As(III) on sawdust carbon was obtained in a batch reactor. The process of uptake follows the first-order adsorption rate expression and obeys the Langmuir and Freundlich model of adsorption. The mass transfer coefficients as a function of initial sorbate concentration have been determined. Parameters such as pH and absorbent dose were studied. Maximum adsorption capacity was observed at pH 7.0.

Keywords: adsorption, As(III) removal, mass transfer coefficient, sawdust carbon

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