Nanoparticle for the Removal of DR from Aqueous Solution: Adsorption Equilibrium Studies.

Abstract

Discharge of dye bearing waste-waters from industries viz, textile paper, printing etc, into natural receiving bodies is resulting in pollution of receiving water bodies. Dyes and their degradation products are highly carcinogenic. The need of the day is the disposal of these waste-waters after proper treatment. Even though many traditional treatment techniques are in use, adsorption is found to be more effective and cheap method for treating waste-waters containing dyes. Further nano-technology and nano-particles are applied successfully in these days to treat dye bearing waste-waters efficiently. In the present paper the findings of bench scale studies to evaluate DR by nano-particles under varied experimental conditions are presented. The adsorption equilibrium and kinetic models with co-relation co-efficients are also presented in this paper. The results showed that NIPVP is able to adsorb 98.2% of DR from aqueous solution under optimum conditions of experimentations. The adsorption studies indicates both Langmuir and Freundlich isotherm models well fits with the adsorption data. Also the kinetic studies demonstrated that the colour adsorption on nanoparticles is in good accordance with the pseudo second order kinetic model.