Abstract
A long-term study of the effect of artificial aeration (destratification) of a water storage dam upon the speciation of iron and manganese in the dam waters has been undertaken. Separation of dam samples into soluble and insoluble forms by selective membrane filtration was undertaken before using the techniques of EPR spectroscopy, ion chromatography and gel filtration to assess the speciation of soluble species, and selective extraction and surface analysis (ESCA, SIMS and SEM) techniques to determine the speciation of particulate iron and manganese species. The percentages of soluble iron and manganese before (1983–85) and after (1986–88) artificial aeration are compared for the periods Jan–Dec, Jan–Mar, and Jun–Aug at three depths 6 m, 15 m and 0.5 m above the dam base, to assess the importance of seasonal changes in the various depths of the dam. Although aeration had an initial marked reduction in levels of soluble iron and manganese at all depths of the dam, the concentrations of these mtals showed a steady increase over succeeding years. Analysis of the figures over summer and winter periods shows that the reduction of soluble iron was maintained in summer, but not during winter. Upon aeration, the initial reduction of soluble manganese concentration was maintained in succeeding years in the epilimnic regions of the dam, but not in the hypolimnion. Statistical analysis of data has been undertaken to correlate the changes in relationship between the various forms of iron and manganese with the advent of aeration.
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References
Allaby, M.: 1977, A dictionary of the Environment, Macmillan, London.
Ballstrieri, L., Brewer, P. G. and Murray, J. W.: 1981, Deep-Sea Res., 28, 101.
Bowles, B. A., Powling, I. J. and Burns, F. L.: 1979, Australian Water Resources Council Technical Paper No. 46, Australian Government Publishing Services, Canberra.
Chiswell, B. and Rauchle, G.: 1987, ‘Manganese in Water Storage Waters’, Proc. Roy. Soc. Qld., 97, 53.
Chiswell, B. and Mokhtar, M. B.: 1986, ‘The Speciation of Manganese in Freshwaters’, Talanta, 33, 669.
Chiswell, B. and Mokhtar, M. B.: 1987, ‘Speciation of Manganese in Fresh Water-I. Use of EPR Studies’, Talanta, 34, 307.
Chiswell, B. and Mokhtar, M. B.: 1989, ‘Some Effects of Dam Destratification upon Manganese Speciation’, Proc. Conf. on Water Sediment Interface, Plenum Press (in press).
Coker, W. B., Hornbrook, E. H. W. and Cameron, E. M.: 1979, ‘Lake sediment geochemistry applied to mineral exploration’, In Geophysics and Geochemistry in the Search for Metallic Ores, Hood, J. P. (Ed.), Geological Survey of Canada, Economic Geology Report, 32, 435.
Cowen, J. P. and Silver, M. W.: 1984, Science, 224, 1340.
Cowen, J. P. and Bruland, K. W.: 1985, ‘Deep-Sea Res.’, 32, 253.
Davison, W. and Woof, C.: 1984, Water Res., 18, 727.
Faust, S. D. and Aly, O. M.: 1983, Chemistry of Water Treatment, Butterworths, Boston, p. 51.
Hutchinson, G. E.: 1975, A Treatise on Limnology, Vol. 1, Pt. 2, Chemistry of Lakes, New York, John Wiley and Sons.
Loos, E. T.: 1987, Water, Journal of the Austrian Water and Wastewater Association, 14, 28.
Marshall, K. C.: 1980, ‘The role of surface attachment in manganese oxidation by freshwater hyphomicrobia’, In Biogeochemistry of Ancient and Modern Environments, Trudinger, P. A. Walter, M. R. and Ralph, B. J. (Eds.), Springer, New York, p. 333.
Martin, J. H. and Knauer, G. A.: 1985, Nature, 314, 524.
NH and MRC: 1980, ‘Desirable quality for drinking water in Australia’, National Health and Medical Research Council and the Australia Water Resources Council Australia Government Publishing Service, Canberra.
Timperley, M. H. and Allan, R. J.: 1974, J. Geochem. Explor., 3, 167.
Tyler, P. A.: 1970, J. Microbiol. Serol., 36, 567.
Tyler, P. A. and Marshall, K. C.: 1967, J. Am. Water Works Assoc., 59, 1043.
Uhlmann, D.: 1979, Hydrobiology, New York, John Wiley and Sons.
Waite, T. D., Sly, L. I., Kloe, G., Dixon, D. R., Chiswell, B. and Batley, G. E.: 1989, Australian Water and Wastewater Association 13th Federal Convertion, Canberra, p. 437.
Wetzel, R. G.: 1975, Limnology, Washington, Saunders College Publishing, p. 69.
World Health Organization, Guidelines for Drinking-Water Quality, Geneva.
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Chiswell, B., Zaw, M. Lake destratification and speciation of iron and manganese. Environ Monit Assess 19, 433–447 (1991). https://doi.org/10.1007/BF00401331
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DOI: https://doi.org/10.1007/BF00401331