Removal of Copper (II) Ions in Aqueous Solutions by Sorption onto Fly Ash
DOI:
https://doi.org/10.5614/j.eng.technol.sci.2017.49.4.9Keywords:
adsorption, aqueous solutions, Cu ions, fly ash, Langmuir model.Abstract
The ability of fly ash to adsorp Cu(II) ions from two different coal combustion systems was studied. Optimum removal was found at pH 5, contact time 30 minutes and 60 minutes for Fly Ash 1 and Fly Ash 2, respectively, and dosage 10 g/l. The difference in adsorption capacity between both fly ashes may be due to their carbon fraction and CaO content. The removal of Cu (II) ions was caused by both adsorption and/or precipitation. Precipitation is enhanced by lowering the carbon fraction and increasing the CaO content. The adsorption isotherm showed that the Langmuir model fitted well to the experimental data of both fly ashes. A thermodynamic study was conducted at three different temperatures: 25 C, 45 C, and 60 C. The adsorption processes were spontaneous and endothermic and were more favorable at higher temperature.Downloads
References
Hsu, T-C., Yu, C-C. & Yeh, C-M., Adsorption of Cu2+ from Water using Raw and Modified Coal Fly Ash, Fuel, 87(7), pp. 1355-1359, 2008.
Hui, K.S., Chao, C.Y.H. & Kot, S.C., Removal of Mixed Heavy Metal Ions in Wastewater by Zeolite 4A and Residual Products from Recycled Coal Fly Ash, Journal of Hazardous Materials, 127(1-3), pp. 89-101, 2005.
Lopez, F.A., Perez, C. & Lopez-Delgado, A., The Adsorption of Copper (II) Ion from Aqueous Solution on Blast Furnace Sludge, Journal of Materials Science Letters, 15(15), pp. 1310-1312, 1996.
Ahmaruzzaman, M., Industrial Wastes as Low-cost Potential Adsorbents for the Treatment of Wastewater Laden with Heavy Metals, Colloid and Interface Science, 166(1-2), pp. 36-59, 2011.
Bhattcharyya, K.G. & Gupta, S.S., Adsorption of a few Heavy Metals on Natural and Modified Kaolinite and Montmorillonite: A Review, Advances in Colloid and Interface Science, 140(2), pp. 114-131, 2008.
Chen, X., Chen, G., Chen, L., Chen, Y., Lehmann, J., McBride, M.B. & Hay, A.G., Adsorption of Copper and Zinc by Biochars Produced from Pyrolysis of Hardwood and Corn Straw in Aqueous Solution, Bioresource Technology, 102(19), pp. 8877-8884, 2011.
Shawabkeh, R., Al-Harahsheh, A. & Al-Otoom, A., Copper and Zinc Sorption by Treated Oil Shale Ash, Separation and Purification Technology, 40(3), pp. 251-257, 2004.
Nasernejad, B., Zadeh, T.E., Pour, B.B., Bygi, M.E. & Zamani, A., Comparison for Biosorption Modeling of Heavy Metals (Cr (III), Cu (II), Zn (II)) Adsorption from Wastewater by Carrot Residues, Process Biochemistry, 40(3), pp. 1319-1322, 2005.
Lingamdinne, L.P., Yang, J-K., Chang, Y.Y. & Koduru, J.R., Low-cost Magnetized Lonicera Japonica Flower Biomass for the Sorption Removal of Heavy Metals, Hydrometallurgy, 165(1), pp. 81-89, 2016.
Wu, Y., Zhang, S., Guo, X. & Huang, H., Adsorption of Chromium (III) on Lignin, Bioresource Technology, 99(16), pp. 7709-7715, 2008.
Guo, X., Zhang, S. & Shan, X-Q., Adsorption of Metal Ions on Lignin, Journal of Hazardous Materials, 151(1), pp. 134-142, 2008.
Weng, C.H. & Huang, C.P., Adsorption Characteristics of Zn(II) from Dilute Aqueous Solution by Fly Ash, Colloids and Surfaces A: Physicochemichal Engineering Aspects, 247(1-3), pp. 137-143, 2004.
Sharma, Y.C., Uma, Upadhyay, S.N. & Weng, C.H., Studies on an Economically Viable Remediation of Chromium Rich Waters and Wastewaters by PTPS Fly Ash, Colloids and Surfaces A: Physicochem. Engineering Aspects, 317(1-3), pp. 222-228, 2008.
Polowczyk, I., Ulatowska, J., Kozlecki, T., Bastrzyk, A. & Sawifiski, W., Studies on Removal of Boron from Aqueous Solution by Fly Ash Agglomerates, Desalination, 310, pp. 93-101, 2013.
SoA o, E. & Kalembkiewicz, J., Adsorption of Nickel(II) and Copper(II) Ions from Aqueous Solution by Coal Fly Ash, Journal of Environmental Chemical Engineering, 1(3), pp. 581-588, 2013.
Panday, K.K., Prasad, G. & Singh, V.N., Copper (II) Removal from Aqueous Solutions by Fly Ash, Water Research, 19(7), pp. 869-873, 1985.
Cho, H., Oh, D. & Kim, K., A Study on Removal Characteristics of Heavy Metals from Aqueous Solution by Fly Ash, Journal of Hazardous Materials, 127(1-3), pp. 187-195, 2005.
Bayat, B., Comparative Study of Adsorption Properties of Turkish Fly Ashes I. The Case of Nickel(II), Copper(II) and Zinc(II), Journal of Hazardous Materials, 95(3), pp. 251-273, 2002.
Lin, C-J. & Chang, J-E., Effect of Fly Ash Characteristics on the Removal of Cu (II) from Aqueous Solution, Chemosphere, 44(5), pp. 1185-1192, 2001.
Ayala, J., Blanco, F., Garcia, P., Rodriguez, P. & Sancho, J., Asturian Fly Ash as a Heavy Metals Removal Material, Fuel, 77(11), pp. 1147-1154, 1998.
Hequet, V., Ricou, P., Lecuyer, I. & Cloirec, PL., Removal of Cu2+ and Zn2+ in Aqueous Solutions by Sorption onto Mixed Fly Ash, Fuel, 80(6), pp. 851-856, 2001.
Alinnor, I.J., Adsorption of Heavy Metal Ions from Aqueous Solution by Fly Ash, Fuel, 86(5-6), pp. 853-857, 2007.
Ricou-Hoeffer, P., Lecuyer, I. & Le-Cloirec, P., Experimental Design Methodology Applied to Adsorption of Metallic Ions onto Fly Ash, Water Research, 35 (4), pp. 965-976, 2001.
Gupta, G. & Torres, N., Use of Fly Ash in Reducing Toxicity of and Heavy Metals in Wastewater Effluent, Journal of Hazardous Materials, 57(1-3), pp. 243-248, 1998.