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

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

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"Bioshrouding": a novel approach for securing reactive mineral tailings. / Johnson, D Barrie; Yajie, Liu; Okibe, Naoko.
Yn: Biotechnology Letters, Cyfrol 30, Rhif 3, 03.2008, t. 445-9.

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

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

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

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Johnson, D Barrie ; Yajie, Liu ; Okibe, Naoko. / "Bioshrouding" : a novel approach for securing reactive mineral tailings. Yn: Biotechnology Letters. 2008 ; Cyfrol 30, Rhif 3. tt. 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 -