The sorption properties of plant materials derived from Acasia nilotica Indica, Syzygium cumini and Osismum Sanctum have been explored for the removal of Methylene Blue using the simulated waste waters. The physicochemical parameters such as pH, time of equilibration and sorbent concentrations have been optimized for the maximum extraction of the dye. The bio-sorbents are found to be effective at pH 8 and 10. The optimum Sorbent dosage and equilibration time are found to be less for the ashes than with the raw powders. Fivefold excess of common anions ions, have not interfered with the extraction while Cations like Ca2+, Mg2+ and Cu2+ have shown some interference but Fe2+ and Zn2+ have synergistically maintained the maximum extraction of the dye. The methodologies developed are remarkably successfully when applied to the samples collected from dyeing industries.
