METHYLENE BLUE REMOVAL FROM AQUEOUS MEDIUM USING NANO PARTICLES- FIXED BED COLUMN STUDIES

Abstract

There is a great threat to water bodies due to the release of untreated industrial effluents in general and dyes in particular. Thus, to protect the water bodies treatment of colored waste waters is very much needed. Amongst various treatment options available to treat coloured waste waters, fixed bed column found to be more efficient which facilitates good contact between waste water with adsorbent. Outcome of studies on adsorption of Methylene blue by ZnO and MgO nano particles employing column studies are presented in this paper. Variables viz pH, depth of the bed, initial concentration of dye have been investigated. The behavior of column bed reflected by break through curves and tests carried out using kinetic models namely Thomas and Yoon-Nelson are also presented in this paper.