Sorption and Fractionation of Copper in soil at a sewage irrigation farm in Australia

Li, P. J., Stagnitti, F., Allinson, G., Turoczy, N., Xiong, X. and Peterson, J. 2006, Sorption and Fractionation of Copper in soil at a sewage irrigation farm in Australia, Communications in soil science and plant analysis, vol. 37, no. 7-8, pp. 1031-1042, doi: 10.1080/00103620600584776.

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Title Sorption and Fractionation of Copper in soil at a sewage irrigation farm in Australia
Author(s) Li, P. J.
Stagnitti, F.
Allinson, G.
Turoczy, N.
Xiong, X.
Peterson, J.
Journal name Communications in soil science and plant analysis
Volume number 37
Issue number 7-8
Start page 1031
End page 1042
Publisher Taylor & Francis
Place of publication Philadelphia, Pa.
Publication date 2006-09
ISSN 0010-3624
Summary Copper (Cu) is an important heavy metal to be considered in soil contamination, because high concentrations of copper in soil produce toxic effects and may accumulate in plant tissues. In Australia's oldest sewage irrigation farm, located in Werribee, Victoria, soil in the land filtration area is contaminated by Cu. However, Cu content in herbage tissues is in the normal range and has been trending downward since 1979. Therefore, studies on the sorption capacity and sequential extraction of Cu in soil at the Werribee Farm is of significance, not only for better understanding the mechanism of transport, chemical processes, and plant uptake of Cu, but also in providing information for the practical management of sewage farm soils. Methods of combining sorption isotherms with sequential extraction procedures were adopted, and the results showed that the soil in the land filtration area at Werribee Farm has a high sorption capacity for Cu, and distribution coefficients, Kf of Cu, were 629 L kg-1 in surface soils (0-20 cm) and 335 L kg-1 in subsurface soils (20-40 cm). The sequential extraction fractions demonstrate that exchangeable and carbonate fractions are very low, only comprising 3.49 to 5.49% of total copper. The other fractions are also discussed. This characteristic of Cu in soil is related to the low concentration of Cu in plant tissues.
Language eng
DOI 10.1080/00103620600584776
Field of Research 039901 Environmental Chemistry (incl Atmospheric Chemistry)
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2006, Taylor & Francis
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Document type: Journal Article
Collection: School of Life and Environmental Sciences
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