Adsorption of Methylene Blue and Methyl Orange By Using Waste Ash

The adsorption in a batch system for methylene blue (MB) and methyl orange (MO) on waste ash were evaluated. The adsorption isotherms showed adsorptive maximum capacities for waste ash of MB and MO 40.983 mg g-1 35.614 mg g-1 respectively. The equilibrium adsorption data were fitted by Dubinin-Radushkevic (D-R) adsorption isotherm model. The estimated values of adsorption energy, Ea, calculated from the D-R isotherm, for both MB and MO and waste ash systems were found to be 0.015 kJ mol-1 , 0.091 kJ mol-1 at room temperature respectively which implies that adsorption of both MB and MO on waste ash (0.3 g) is by physical adsorption. Waste ash and the dyes loaded waste ash were characterized by SEM. We studied reusability and it was found that the waste ash is stable and regenerable by 5 M HNO3 without losing their activity. This research suggests that the waste ash can be an effective adsorbent for the removal of such acidic and basic dyes from aquatic solution.

Anahtar Kelimeler:

Waste ash, Isotherm; Desorption

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[1] Turabik, M. 2008. Adsorption of basic dyes from single and binary component systems onto bentonite: Simultaneous analysis of Basic Red 46 and Basic Yellow 28 by first order derivative spectrophotometric analysis method. Journal of Hazardous Materials, 158(2011), 52–64.
[2] Fernandez, M. E., Nunell, G. V., Bonelli, P. R., & Cukierman, A. L. 2012. Batch and dynamic biosorption of basic dyes from binary solutions by alkaline-treated cypress cone chips. Bioresource Technology, 106(2012), 55–62.
[3] Albadarin, A. B., 2015. Mangwandi, Mechanisms of Alizarin Red S and Methylene blue biosorption onto olive stone by-product: Isotherm study in single and binary systems, J. Environ. Manag. 164 (2015), 86–93.
[4] Ezechi, E. H., Kutty, S.R.b.M., Malakahmad, A., Isa, M.H. 2015. Characterization and optimization of effluent dye removal using a new low cost adsorbent: Equilibrium, kinetics and thermodynamic study, Process Saf. Environ. Prot. 98(2015), 16–32.
[5] Said, A., Hakim, M. S. Rohyami, Y., 2014. The Effect of Contact Time and pH on Methylene Blue Removal by Volcanic Ash. International Conference on Chemical, Biological, and Environmental Sciences (ICCBES’14) May 12-13, 2014 Kuala Lumpur (Malaysia) 1002-1005.
[6] Saha, T. K., Bhoumik, N. C., Karmaker, S., Ahmed, M. G., Ichikawa, H., Fukumori, Y., 2010. Adsorption of Methyl Orange onto Chitosan from Aqueous Solution. J. Water Resource and Protection. 2(2010), 898-906.
[7] Mobasherpour, I., Salahi, E., Pazouki, M., 2012. Comparative of the removal of Pb+2, Cd+2 and Ni+2 by nano crystallite hydroxyapatite from aqueous solutions: Adsorption Isotherm Study. Arabian Journal Of Chemistry, 5(2012), 439-446.
[8] Chowdhury, S., Chakrabortyi, S., Saha, P., 2011. Biosorption of Basic Green 4 From Aquaeous Solution By Ananas Comosus (pineapple) leaf powder. Colloids and Surface B: Biointerfaces, 84(2011), 520.
[9] Zengying Z., Jiangyan Y., Meng F., La S., Zhaohui l., 2014. Removal of Methylene Blue from Aqueous Solutıon by Usıng Oıl Shale Ash. Oil Shale, 31(2), 161–173.
[10] Kumar, K.V., 2002. Adsorption Isotherm for Basic Dye Onto Low Cost Adsorbents, Res. J. Chem. Environ. 6 (4), 61–65.
[11] Wang, S., Ma, Q., Zhu, Z. H., 2008. Characteristics of Coal Fly Ash and Adsorption Application, Fuel, 87, 3469-3473.
[12] Okoronkwo, N. E., Igwe, J. C., Uruakpa, H., N., 2008. Dye Removal From Waste Water by Adsorption Onto Boiler Fly Ash, Terrestrial and Aquatic Environmental Toxicology, 2(1)44-48.