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Geochemical changes to dredged canal sediments following land spreading: a review.

Cook, S.R. and Parker, A. (2003) Geochemical changes to dredged canal sediments following land spreading: a review. Land Contamination and Reclamation, 11 (4). pp. 405-410. ISSN 0967-0513

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To link to this article DOI: 10.2462/09670513.627

Abstract/Summary

This paper brings together some of the recent research on trace metals in dredged sediments, and in particular freshwater canal sediments. Following a description of the general UK background, geochemical processes that affect metal release and retention in dredged canal sediments are considered, particularly the role of redox and sulphur on metal associations, and the use of sequential extraction for the derivation of metal associations in sediments. The review outlines the importance of oxidation on metal-mobility and shows that many studies have illustrated the increase in metal-leachability from sediments during oxidation. Suggestions are given for sediment-testing requirements which should include an examination of both anoxic and oxidised sediment as well as ecotoxicology in order to account for changes to metal-speciation after disposal to land.

Item Type:Article
Divisions:Faculty of Science > School of Archaeology, Geography and Environmental Science > Department of Archaeology
Faculty of Science > School of Archaeology, Geography and Environmental Science > Social Archaeology
ID Code:3424
Uncontrolled Keywords:canal; dredged sediment; geochemistry; heavy metals
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