Mobilisation of metals in mineral tailings at the abandoned São Domingos copper mine (Portugal) by indigenous acidophilic bacteria

2006 ◽  
Vol 83 (1-4) ◽  
pp. 184-194 ◽  
Author(s):  
Christopher G. Bryan ◽  
Kevin B. Hallberg ◽  
D. Barrie Johnson
Keyword(s):  
Copper Mine ◽  
Acidophilic Bacteria

scholarly journals Investigation of the optimal technology for copper leaching from old flotation tailings of the copper mine bor (Serbia)

10.30544/514 ◽  
2020 ◽  
Vol 26 (2) ◽  
pp. 209-222 ◽  
Author(s):  
Vesna Conić ◽  
Srđan Stanković ◽  
Branislav Marković ◽  
Dragana Božić ◽  
Jovica Stojanović ◽  
...  
Keyword(s):  
Iron Concentration ◽  
Copper Recovery ◽  
Copper Extraction ◽  
Efficient Technology ◽  
Flotation Tailings ◽  
Copper Mine ◽  
Moderately Thermophilic ◽  
Acidophilic Bacteria ◽  
Leaching Experiment ◽  
Optimal Technology

This work aimed to investigate optimal leaching technology for copper extraction from old flotation tailings of the Copper Mine Bor. The leaching degree of copper after leaching with sulphuric acid at 80 °C was 50%, the maximal leaching degree was achieved after 30 minutes. Then, old flotation tailings were leached with adapted moderately thermophilic acidophilic bacteria in a bioreactor at 40 °C. Maximal leaching degree of 84% was achieved after nine days of the experiment. The third leaching experiment was conducted with biogenic lixiviant obtained by bacterial oxidation of the ferrous iron (concentration of Fe3+ 1300 mgL-1, pH 2.14). Biogenic lixiviant with ferric sulphate was then used in the leaching experiment at 80 °C. Maximal leaching degree was 78%, and it was achieved after five minutes. Results of the leaching experiments show that the most efficient technology for copper recovery from the old flotation tailings of the Copper Mine Bor was leaching with biogenic lixiviant.

Selected Water- and Sediment-Quality, Aquatic Biology, and Mine-Waste Data from the Ely Copper Mine Superfund Site, Vershire, VT, 1998-2007

Data Series ◽  
10.3133/ds378 ◽  
2008 ◽  
Author(s):  
Denise M. Argue ◽  
Richard G. Kiah ◽  
Nadine M. Piatak ◽  
Robert R. Seal ◽  
Jane M. Hammarstrom ◽  
...  
Keyword(s):  
Mine Waste ◽  
Sediment Quality ◽  
Superfund Site ◽  
Copper Mine ◽  
Water And Sediment ◽  
Water And Sediment Quality

Geochemical Characteristics of TP3 Mine Wastes at the Elizabeth Copper Mine Superfund Site, Orange County, Vermont

2003 ◽  
Author(s):  
Jane M. Hammarstrom ◽  
Nadine M. Piatak ◽  
Robert R. Seal ◽  
Paul H. Briggs ◽  
Allen L. Meier ◽  
...  
Keyword(s):  
Orange County ◽  
Geochemical Characteristics ◽  
Mine Wastes ◽  
Superfund Site ◽  
Copper Mine
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