Heavy metal distribution in soils near Palapye, Botswana: an evaluation of the environmental impact of coal mining and combustion on soils in a semi-arid region
| Autor: | Mingzhe Zhai, Robert B. Finkelman, Mooketsi Menyatso, M.P. Modisi, Otlogetswe Totolo, Sebueng M. Kelesitse |
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| Rok vydání: | 2009 |
| Předmět: |
Environmental Engineering
Coal combustion products Combustion Mass Spectrometry Mining Arsenic Geochemistry and Petrology Metals Heavy Soil Pollutants Environmental Chemistry Coal General Environmental Science Water Science and Technology Botswana business.industry Coal mining Environmental engineering Soil classification General Medicine Soil contamination Fly ash Soil water Desert Climate business Geology Environmental Monitoring Power Plants |
| Zdroj: | Environmental Geochemistry and Health. 31:759-777 |
| ISSN: | 1573-2983 0269-4042 |
| Popis: | Morupule Colliery near Palapye in eastern Botswana is the only coalmine in production in Botswana at present. Its coal is mainly used in the nearby coal-fired Morupule Power Station, which generates approximately 1,000 GWh of electricity per annum. After more than 30 years mining and more than 20 years of combustion, the sedimentation of outlet fly ash from the Morupule Power Station has increased concentrations of Cr, Ni, Zn and As by 13, 2.5, 16 and 5 ppm, respectively, in the fine portion ( |
| Databáze: | OpenAIRE |
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