Volume No. 3 Issue No.: 3 Page No.: 728-734 Jan-Mar 2009

 

LOW COST REMOVAL OF BASIC DYE FROM AQUEOUS SOLUTION USING SILK COTTON HULL

 

K. Arun Kumar*1 and S.M. Prakash2

1. Department of Environmental Engineering, Vidyavardhaka College of Engineering, Gokulam 3rd Stage, Mysore, Karnataka (INDIA)
2. City Engineering College, Bangalore, Karnataka (INDIA)

 

Received on : December 02, 2008

 

ABSTRACT

 

In this work, the potential feasibility of silk cotton hull activated carbon for removal of C I basic green 4 (malachite green) a cationic dye from aqueous solution was investigated. Commercial activated carbon is costly and uneconomical. This has necessitated the development of cheaper carbonaceous materials. Since silk cotton hull used in this investigation is freely, abundantly and locally available, the resulting carbon is expected to be economically viable for wastewater treatment. The silk cotton hull activated carbon was prepared in the laboratory by carbonization followed by activation. Carbon prepared from silk cotton hull was used to remove a dye from aqueous solution by an batch adsorption technique under varying conditions like contact time, pH, dosage of adsorbent and various concentrations of adsorbate. Adsorption is dependent on solution pH, dye concentration, carbon dosage and contact time. The experimental results indicate that a dose of 0.5 gm/l and initial concentration of 1 mg/l, showed 86% removal of dye at pH 8 in 40 minutes. Adsorption data were modeled using the Langmuir and Freundlich adsorption isotherms. The result indicated that silk cotton hull activated carbon was an attractive adsorbent for removing basic dye from aqueous solution

 

Keywords : Silk cotton hull, Adsorption, Batch study, Malachite green.

 

 

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