TY - JOUR
T1 - "Bioshrouding" - A novel approach for securing reactive mineral tailings
AU - Johnson, D. Barrie
AU - Yajie, Liu
AU - Okibe, Naoko
N1 - Funding Information:
Acknowledgements This work was carried out in the frame of BioMinE (European project contract NMP1-CT-500329-1). The authors acknowledge the financial support given to this project by the European Commission under the Sixth Framework Programme for Research and Development. We also wish to thank our various partners on the project for their contributions to the work reported in this paper. DBJ is grateful to the Royal Society (UK) for the award of an Industrial Fellowship.
PY - 2008/3
Y1 - 2008/3
N2 - A novel technique ("bioshrouding") for safeguarding highly reactive sulfidic mineral tailings deposits is proposed. In this, freshly milled wastes are colonised with ferric iron-reducing heterotrophic acidophilic bacteria that form biofilms on reactive mineral surfaces, thereby preventing or minimising colonisation by iron sulfide-oxidising chemolithotrophs such as Acidithiobacillus ferrooxidans and Leptospirillum spp. Data from initial experiments showed that dissolution of pyrite could be reduced by between 57 and 75% by "bioshrouding" the mineral with three different species of heterotrophic acidophiles (Acidiphilium, Acidocella and Acidobacterium spp.), under conditions that were conducive to microbial oxidative dissolution of the iron sulfide.
AB - A novel technique ("bioshrouding") for safeguarding highly reactive sulfidic mineral tailings deposits is proposed. In this, freshly milled wastes are colonised with ferric iron-reducing heterotrophic acidophilic bacteria that form biofilms on reactive mineral surfaces, thereby preventing or minimising colonisation by iron sulfide-oxidising chemolithotrophs such as Acidithiobacillus ferrooxidans and Leptospirillum spp. Data from initial experiments showed that dissolution of pyrite could be reduced by between 57 and 75% by "bioshrouding" the mineral with three different species of heterotrophic acidophiles (Acidiphilium, Acidocella and Acidobacterium spp.), under conditions that were conducive to microbial oxidative dissolution of the iron sulfide.
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U2 - 10.1007/s10529-007-9574-4
DO - 10.1007/s10529-007-9574-4
M3 - Article
C2 - 17975731
AN - SCOPUS:38649112649
SN - 0141-5492
VL - 30
SP - 445
EP - 449
JO - Biotechnology letters
JF - Biotechnology letters
IS - 3
ER -