This review of article is about the removal of Chromium (VI) from textile waste water by using activated carbon prepared from neem leaves and garlic husk. This article presents about adsorption, activated carbon and its process, characteristics of commercially activated carbon, methods to test characteristics of activated carbon, preparation of garlic husk and neem leaves and its adsorbent preparation. Also a detailed study report of physio chemical properties of activated garlic husk powder and neem powder, removal of heavy metal and its toxicity was discussed. The garlic husk powder and neem powder were activated using HCL in which the test results were comparatively same with commercially activated carbon. The particle size, yield, moisture content, ash content and pH of neem and garlic powder were found to be 875 micron and 850 micron, 60.540% and 58.60%, 6.25% and 7.50%, 3.10% and 4.10%, 6.80 and 7.65 respectively. The main scope this project is to remove heavy metals from textile waste water in future with the help of prepared activated carbon using garlic husk and neem leaves. The present study is aimed at preparing the carbon from neem leaves and garlic husk by thermal activation procedure and will be tested for the removal of Chromium (VI) from aqueous solution. The results of the present study suggest that activated carbon from neem leaves and garlic husk can be used beneficially for chromium removal from aqueous solution.

Keywords: Chromium (VI), Neem leaves, Garlic husk, Activated carbon, Heavy metal, Toxicity.

[1] Alagesan Kannan (2014) Removal of cadmium from aqueous solution using carbon derived from Palmyra palm fruit seed, International Journal of Hazardous Material, Vol. 2, No.1, pp.1-6.

[2] Bernard (2003) Heavy Metals Removal from Industrial Wastewater by Activated Carbon prepared from Coconut Shell, Research Journal of Chemical Sciences, Vol.3, No.8, pp.3-9.

[3] Huang (1983), Activated Carbon Process for the Treatment of Cadmium (II)-Containing Wastewaters, Industrial Environmental Research Laboratory, Vol. 600, No. 2, pp.8 3-061.

[4] Chin-pao Haung (1978) Removal of Cadmium (II) by Activated Carbon, Journal of the Environmental Engineering Division, Vol.104, No.5, pp.863-878.

[5] Cristina Quintelas (2009) Removal of Cd(II), Cr(VI), Fe(III) and Ni(II) from aqueous solutions by an E. coli biofilm supported on kaolin, Chemical Engineering Journal, Vol.149, pp.319–324.