Back to Search
Start Over
Treatment of Percolate from Metal Sulfide Mine Tailings with a Permeable Reactive Barrier of Transformed Red Mud.
- Source :
-
Water Environment Research (10614303) . Apr2010, Vol. 82 Issue 4, p319-327. 8p. - Publication Year :
- 2010
-
Abstract
- Metal sulfide tailings of the Sardinian (Italy) abandoned Baccu Locci arsenic mine show high concentrations of aluminum, arsenic, cadmium, copper, manganese, lead, and zinc in acid percolate (pH = 4) and have been classified as "dangerous waste." This paper shows that the release of toxic metals can be strongly reduced when the tailings are placed on a reactive permeable bed (7 wt %) of porous, alkaline pellets of transformed red mud (TRM). During a laboratory percolation test, two columns with 80 kg of waste, of which one contained a bottom layer of TRM pellets, were each alimented with 600 L of de-ionized water. Comparing pH, electroconductivity, metal, and sulfate concentrations of collected percolate from both columns demonstrates efficient neutraliza- tion (pH = 7.4) and removal of metals (80 to 99%) for the column with the permeable reactive bottom layer. Water Environ. Res., 82, 319 (2010). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10614303
- Volume :
- 82
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Water Environment Research (10614303)
- Publication Type :
- Academic Journal
- Accession number :
- 49733727
- Full Text :
- https://doi.org/10.2175/106143009X12487095236432