Removal of dyes from waste water is a major ecological problem. Colorants present in dye house effluent are responsible for environmental pollution. Removal of malachite green from its aqueous solution by Neem tree has been investigated by means of a batch system. The effects of contact time, initial concentration of dye, particle size of adsorbent and adsorbent dosage on the adsorption of malachite green by Neem tree were studied. The results showed that adsorption of the dyes were found to increase as the adsorbent dosage increases, but decreases as initial concentration of adsorb ate increases, this is due to the active site of the adsorbent can absorb a certain concentration of the dye. The removal of adsorb ate by activated Neem bark leaves adsorption is investigated in present study.
 

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