Publikace na Přírodovědecká fakulta |
2011
Abstrakt
Behaviour of metals like Cu and Co was studied in nearly neutral (pH GREATER-THAN OR EQUAL TO 6.4) mine drainage seepage in a stream downgradient of a tailing dam at Chambishi site in the Copperbelt of Zambia. They are attenuated by precipitation of ferruginous ochres that incorporate significant quantities of metals.
Using chemical analysis, X-ray powder diffraction and Mössbauer spectroscopy, we show that the ochres are composed mostly of amorphous ferric hydroxide.