Abstract—The removal of Eriochrome Black T from wastewater model by manganese oxide-coated zeolite was studied. Batch experiments were performed at different contact time. Experimental data were analysed using pseudofirst order, pseudo-second order and intra-particle diffusion models, and it was found out that the rate of adsorption follows the pseudo-first order model. Equilibrium was attained at 12h at 79.2428% removal, and data generated from this were used to analyse the system's isotherms. Langmuir, Freundlich and Dubinin-Radushkevich isotherm models were used. The Freundlich model gave the best fit for the EBT adsorption.
Index Terms—Adsorption, zeolite modification, color removal, azo dyes.
Dios Marie M. Aguila was with MS Environmental Engineering Program, University of the Philippines Diliman. She is now with Batangas State University, Philippines (e-mail: firstname.lastname@example.org).
Mayzonee V. Ligaray is with Ulsan National Institute of Science and Technology, Korea (e-mail: email@example.com).
Cite:Diosa Marie M. Aguila and Mayzonee V. Ligaray, "Adsorption of Eriochrome Black T on MnO2-Coated Zeolite," International Journal of Environmental Science and Development vol. 6, no.11, pp. 824-827, 2015.