Adsorption Studies of Activated Carbon Prepared from Rice Husk for Removal of Methylene Blue Dye from Aqueous Solution

Solomon Mirete¹, A Geetha Selvarani²

¹PG Scholar, ²Professor, Department of Civil Engineering,
Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and Technology,, Chennai, India.

Abstract

Dyes are an important class of pollutants which are extensively used in various industries. The presence of dyes in water largely affect the photosynthetic activities of aquatic plants by reducing the transmission of sunlight into the water bodies, toxic and even carcinogenicaffecting the aquatic biota and human health. Due to their complex chemical structure of dye, the removal techniques are often expensive, in this study Adsorption techniques is preferred over other processes due to it is such an easy operation, simple design, avoidance of secondary pollution, low cost, economic feasibility, In this study, activated carbons, prepared from low-cost rice husk by Thermal and Acid activation, were used as the adsorbent for the removal of methylene blue, from aqueous solutions. Over 99.9% removal efficiency were achieved for the given dosage, with respect pH increasing of basicity of solution will increases removal efficiency. Equilibrium adsorption and Kinetic data were studied using Langmuir, Freundlich Isotherms and by pseudo-first, second-order rate respectively.

Keywords

• Activated carbon, Rice Husk, Adsorption, Dye, Methylene blue

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Cite this Article as Follows

Solomon Mirete, A Geetha Selvarani. Adsorption Studies of Activated Carbon Prepared from Rice Husk for Removal of Methylene Blue Dye from Aqueous Solution. International Conference on Global Environmental Changes and Sustainable Development (2019): 57. Print.