ARSENIC(III) REMOVAL BY ADSORPTION THROUGH GROUNDNUT HUSK CARBON

摘要

Studies on removal of Arsenic (As) (III) by. absorption on groundnut husk and groundnut husk carbon have been carried out at room temperature (25+-1℃). The absorption isotherm of As(III) on groundnuT husk carbon was obtained in a batch reactor. The process of uptake follows first-order adsorption rate expression and obeys Langmuir and Freundlich model of absorption. 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.