Fractionation of Copper in Soils Around Waste Dump site in Kaduna Municipality, Nigeria
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Authors
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Sanda Sanda
Kebbi State University of Science and Technology, Aliero, Kebbi State, P.O.BOX 1144, Nigeria
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Ahmad R
Kebbi State University of Science and Technology, Aliero, Kebbi State, P.O.BOX 1144, Nigeria
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Zakari H Abdulrazak
Kebbi State University of Science and Technology, Aliero, Kebbi State, P.O.BOX 1144, Nigeria
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Jibril Mohammed
Department of Agric Technology Kaduna Polytechnic, Kaduna State, P.M.B. 202
Abstract
Generation of waste is increasing rapidly with increase in population, urbanization and industrialization. The indiscriminate dumping waste may cause serious environmental pollution. Copper among the other heavy metals was found as toxic accumulation at dumping sites. The bio-availability of copper (Cu) from soil could be estimated by a variety of chemical extraction procedures differing in nature and concentration of extractants, the sample weight and the time of extraction. The present study compared two different methods namely single and sequential extraction. Concentrated nitric acid (HNO3) and 0.01 mol/L acetic acid (CH3 COOH) were used as the single extractants. Whereas deionized water and varying strength of acids and alkali were used for sequential extraction of copper fractions. The total copper content ranged from 248 to 24700 mg kg-1 soil around the dump site. About 49 to 88% of the total copper was extracted using concentrated nitric acid. The results revealed that even strong acid HNO3 is unable to release the cupper tightly bound to the soil matrix. This particular method with microwave digestion is commonly used for the estimation of anthropogenic pollution. On the other hand, the lowest copper yield was obtained using the acetic acid as the single extraction agent. In this case the concentrations were below 0.16% of the total Cu contents an amount that is generally referred as bio-available to plants.Key words: Bio-availability, extraction methods, humic acid, tightly bound, anthropogenic.
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References
Biester, H. and Sololz, C. 1998. Determination of Copper binding forms in contaminated soils. Environmental Science and Technology 38: 254-268.
Bloom, N.S., Prous, E., Katon, J. and Hiltner, M. 2006. Selective extraction to assess the biogeochemically relevant fractionation of inorganic copper in soils. Analytical Chemistry 489: 236-249.
Boszke, I., Kowalske, A. and Astel, A. 2009. Copper mobility and bioavailability in soils from contaminated area. Environmental Geology 56: 1005-1091.
ISO-1260 1994. Standard of Soil Quality - Determination of Effective cation Exchange Capacity and Base Saturation Level using Barium Chloride Solution. International Organization for Standardization, Geneva.
Issaro, N., Besancon, S. and Bermond, A. 2010. Thermodynamic and limited study of the single extraction of copper from soil using sodium-thiosulfate. Talanta 82: 1659-1667.
Lachler, P.L., Miller J.R., Hsu, L.C. and Desilers, M.O. 1997. Copper mobility at the Carson River superfund site, waste-central Nevaa, USA. Interpretation of copper speciation data in mill tailings, soils and sediments. Journal of Geochemical Exploration 58: 259-267.
Liu, G., Cabrera, J., Allen, M. and Cai, Y. 2006. Copper characterization in a soil sample collected nearby the DOE Oak Ridge Reservation utilizing sequential extraction and thermal desorption methods. Science of the Total Environment 369: 384-392.
Novozamsky, L., Lexmond, Th. M. and Houba, V.J.G. 1993. A single extraction procedure of soil for evaluation of uptake of some heavy metals in plants. International Journal of Environmental Analytical Chemistry 51: 47-98.
Quevauviller, Ph., Ure A., Muntau, H. and Griepink, B. 1993. Improvement of analytical measurements within the BCR programme – Single and sequential extraction procedures applied to soil and sediment analysis. International Journal of Environmental Analytical Chemistry 51: 129-134.
Reis, A.T., Rodrigues, S.M., Davidson, C.M., Pereira, E. and Dunte, A.C. 2010. Extractability and mobility of Cu from agricultural soils surrounding industrial and mining contaminated areas. Chemosphere 81: 1369-1377.
Revis, N.W., Osborne, T.R., Sedgley, D. and King, A. 1989. Quantitative method for determining the concentration of copper (II) sulphide in soils and sediments analysis. 114: 823-825.
Rodrigues, S.M., Henriques, B., Coimbra, J., Pereira da Silva, I., Pereira, M. E. and Duarre, A.C. 2010. Water soluble fraction of copper arsenic and other potentially toxic elements in highly contaminated sediments and soils. Chemosphere 78: 1304-1311.
Sims, J.R. and Haby, V.A. 1971. Simplified colorimetric determination of soil organic matter. Soil Science 112: 137-141.
Subires Munoz, I.D., Garcia Rubia, A., Vereda-Alonso, Gomez Lahoz, C., Rodriguez Maroto, J.M., Garcia Herruzo E. and Paz Garcia, J.M. 2011. Feasibility study of the use of different extraction agents in the remediation of a copper contaminated soil from Almaden. Separation and Purification Technology 79: 151-156.
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