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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/3272

Title: Limestone neutralisation of arsenic-rich effluent from a gold mine
Authors: De Beer, M
Mathews, EH
Krueger, D
Maree, J
Mbhele, FN
Phalanndwa, M
Novhe, NO
Keywords: Acid mine water
Arsenic rich acid water
Limestone neutralisation
Lime
Gold mine
Arsenic minerals
Fluidised bed
Issue Date: Mar-2008
Publisher: Springer Verlag
Citation: De Beer, M, Mathews EH, Krueger, D, Maree, J, Mbhele, FN, Phalanndwa, M and Novhe, NO. 2008. Limestone neutralisation of arsenic-rich effluent from a gold mine. Mine Water and the Environment, vol 27(1), pp 1-10
Abstract: Traditionally acid mine water is neutralised with lime. Limestone is a cheaper alternative for such applications. A case study showed that limestone can be used effectively to replace lime for the neutralization of arsenic rich acid water. The cost of limestone treatment is 45.8% less than that of lime. The acidity can be removed from 33.5 to 0.06 g/L (as CaCO3). The study also showed no significant differences in the TCLP characteristics of the resultant sludge when water is treated with lime or with limestone. Sludge from the limestone treatment process can be disposed of on a non-hazardous landfill site
Description: Copyright: 2008 Springer Verlag
URI: http://hdl.handle.net/10204/3272
ISSN: 1025-9112
Appears in Collections:Water resources and human health
Mining and geoscience
General science, engineering & technology

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