$Geochemical fractionation of hazardous elements in fresh and drilled weathered South African coal fly ashes$

Geochemical fractionation of hazardous elements in fresh and drilled weathered South African coal fly ashes

The chemical reactions of dry-disposed ash dump, ingressed oxygen, carbon dioxide, and infiltrating rainwater affect mineralogical transformation, redistribution, and migration of chemical species. Composite samples of weathered coal fly ash taken at various depths and fresh coal fly ash were examin...

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Veröffentlicht in:	Environmental geochemistry and health 2020-09, Vol.42 (9), p.2771-2788
Hauptverfasser:	Akinyemi, S. A., Gitari, W. M., Thobakgale, R., Petrik, L. F., Nyakuma, B. B., Hower, J. C., Ward, C. R., Oliveira, M. L. S., Silva, L. F. O.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aluminum oxide Ashes Calcite Carbon dioxide Chemical reactions Chemical speciation Chromium Coal Copper Depletion Diffusion rate Earth and Environmental Science Enrichment Environment Environmental Chemistry Environmental Health Ettringite Fluorescence Fly ash Fractionation Geochemistry Glass Iron Migratory species Mobility Molybdenum Mullite Original Paper Oxides Percolation Potassium Public Health Rain Rain water Salts Silicates Sodium Soil Science & Conservation Terrestrial Pollution Tridymite X rays X-ray diffraction X-ray fluorescence
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