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ADSORPTION STUDIES ON REMOVAL OF Cr (VI) FROM AQUEOUS SOLUTION USING SILK COTTON HULL CARBON

Abstract

Activated carbon prepared from silk cotton hull carbon (SCHC) was used to remove Cr(VI) from aqueous solutions by adsorption technique under varying conditions of agitation time, metal ion concentration, adsorbent dosage and pH. Adsorption followed both Langmuir and Freundlich isotherm models. The adsorption capacity was found to be effective with the particle size of 125-250mm at room temperature (30±2°C) and an initial pH of 3±0.2.

R.Shanmugavalli , S. Madhavakrishnan, K.Kadirvelu , K. Rasappan , R. Mohanraj and S. Pattabhi

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