Agricultural Based Low Cost Absorbnts

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Dr.K.Muthukumaran1, S.Sugumar 2 R.Gokulkarthik3, D.Kaviyarasu4, Department of chemistry, 2, 3, 4. Department of Environmental Engineering Section.
Government College of Technology, Coimbatore 13.

Abstract Adsorption is one of the preferred techniques in recent years to remove the color and inorganics from waste water. Activated carbon derived from the agricultural byproduct, acts as an effective adsorbent for the removal of dyes from waste water. The removal of dyes and metal ions at different, contact time, bed height, flow rate, initial dye concentration, column diameter, adsorbent dosage, pH, and temperature by different agriculture based adsorbent has been studied. The result shows that among the compared adsorbents, moringa oleifera derived adsorbent is effective for waste treatment. The adsorption data were well fitted by Freundlich-isotherm model. Kinetic data were best described by pseudo-second order model.

Keywords: Adsorption, agriculture waste, dye, metal ions.

1. Introduction
Pollution has been a wide problem in all over a world. In most of the industries used dyes as a coloring agent such astextile (Y.C. Wong et al., 2013), paint (King et al., 2008), leather (Sugashini S. et al., 2012), cosmetic (Suantakkamsonlian et al., 2011),paper, printing, cloth (George Z. Kyzas) andfood industries. The wastewaters discharged from dying industries which contains high biological oxygen demand (BOD),
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