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"Bioshrouding": a novel approach for securing reactive mineral tailings

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"Bioshrouding": a novel approach for securing reactive mineral tailings. / Johnson, D Barrie; Yajie, Liu; Okibe, Naoko.
In: Biotechnology Letters, Vol. 30, No. 3, 03.2008, p. 445-9.

Research output: Contribution to journal › Article › peer-review

HarvardHarvard

Johnson, DB, Yajie, L & Okibe, N 2008, '"Bioshrouding": a novel approach for securing reactive mineral tailings', Biotechnology Letters, vol. 30, no. 3, pp. 445-9. https://doi.org/10.1007/s10529-007-9574-4

APA

Johnson, D. B., Yajie, L., & Okibe, N. (2008). "Bioshrouding": a novel approach for securing reactive mineral tailings. Biotechnology Letters, 30(3), 445-9. https://doi.org/10.1007/s10529-007-9574-4

CBE

Johnson DB, Yajie L, Okibe N. 2008. "Bioshrouding": a novel approach for securing reactive mineral tailings. Biotechnology Letters. 30(3):445-9. https://doi.org/10.1007/s10529-007-9574-4

MLA

Johnson, D Barrie, Liu Yajie and Naoko Okibe. ""Bioshrouding": a novel approach for securing reactive mineral tailings". Biotechnology Letters. 2008, 30(3). 445-9. https://doi.org/10.1007/s10529-007-9574-4

VancouverVancouver

Johnson DB, Yajie L, Okibe N. "Bioshrouding": a novel approach for securing reactive mineral tailings. Biotechnology Letters. 2008 Mar;30(3):445-9. doi: 10.1007/s10529-007-9574-4

Author

Johnson, D Barrie ; Yajie, Liu ; Okibe, Naoko. / "Bioshrouding" : a novel approach for securing reactive mineral tailings. In: Biotechnology Letters. 2008 ; Vol. 30, No. 3. pp. 445-9.

RIS

TY - JOUR

T1 - "Bioshrouding"

T2 - a novel approach for securing reactive mineral tailings

AU - Johnson, D Barrie

AU - Yajie, Liu

AU - Okibe, Naoko

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.

KW - Acetobacteraceae/growth & development

KW - Acidithiobacillus/growth & development

KW - Biofilms

KW - Ferrous Compounds/chemistry

KW - Iron/chemistry

KW - Minerals/chemistry

KW - Mining/methods

KW - Oxidation-Reduction

KW - Sulfides/chemistry

U2 - 10.1007/s10529-007-9574-4

DO - 10.1007/s10529-007-9574-4

M3 - Article

C2 - 17975731

VL - 30

SP - 445

EP - 449

JO - Biotechnology Letters

JF - Biotechnology Letters

SN - 0141-5492

IS - 3

ER -