Heterotrophic Microbial Stimulation through Biosolids Addition for Enhanced Acid Mine Drainage Control

Omy Ogbughalu; Andrea Gerson; Gujie Qian; Roger Smart; Russell Schumann; Nobuyuki Kawashima; Rong Fan; Jun Li; Michael Short

doi:10.3390/min7060105

Heterotrophic Microbial Stimulation through Biosolids Addition for Enhanced Acid Mine Drainage Control

Omy Ogbughalu, Andrea Gerson, Gujie Qian, Roger Smart, Russell Schumann, Nobuyuki Kawashima, Rong Fan, Jun Li, Michael Short

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

16 Citations (Scopus)

6 Downloads (Pure)

Abstract

The effective control and treatment of acid mine drainage (AMD) from sulfide-containing mine wastes is of fundamental importance for current and future long-term sustainable and cost-effective mining industry operations, and for sustainable management of legacy AMD sites. Historically, AMD management has focused on the use of expensive neutralising chemicals to treat toxic leachates. Accordingly, there is a need to develop more cost-effective and efficient methods to prevent AMD at source. Laboratory kinetic leach column experiments, designed to mimic a sulfide-containing waste rock dump, were conducted to assess the potential of organic waste carbon supplements to stimulate heterotrophic microbial growth, and supress pyrite oxidation and AMD production. Microbiological results showed that the addition of biosolids was effective at maintaining high microbial heterotroph populations and preventing AMD generation over a period of 80 weeks, as verified by leachate chemistry and electron microscopy analyses. This research contributes to the ongoing development of a cost effective, multi-barrier geochemical-microbial control strategy for reduced mineral sulfide oxidation rates at source.

Original language	English
Article number	105
Pages (from-to)	1-12
Number of pages	12
Journal	Minerals
Volume	7
Issue number	6
DOIs	https://doi.org/10.3390/min7060105
Publication status	Published - 19 Jun 2017
Externally published	Yes

Bibliographical note

(CC-BY 4.0) Open Access article licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license (http://creativecommons.org/licenses/by/4.0).

Keywords

acid mine drainage (AMD)
bioremediation
biosolids
heterotrophs
kinetic leach column
organic carbon
Organic carbon
Kinetic leach column
Acid mine drainage (AMD)
Bioremediation
Heterotrophs
Biosolids

Access to Document

10.3390/min7060105Licence: CC BY

published versionFinal published version, 3.53 MBLicence: CC BY

Cite this

@article{4ebc2bbc84064624a38cf1a864d83f61,

title = "Heterotrophic Microbial Stimulation through Biosolids Addition for Enhanced Acid Mine Drainage Control",

abstract = "The effective control and treatment of acid mine drainage (AMD) from sulfide-containing mine wastes is of fundamental importance for current and future long-term sustainable and cost-effective mining industry operations, and for sustainable management of legacy AMD sites. Historically, AMD management has focused on the use of expensive neutralising chemicals to treat toxic leachates. Accordingly, there is a need to develop more cost-effective and efficient methods to prevent AMD at source. Laboratory kinetic leach column experiments, designed to mimic a sulfide-containing waste rock dump, were conducted to assess the potential of organic waste carbon supplements to stimulate heterotrophic microbial growth, and supress pyrite oxidation and AMD production. Microbiological results showed that the addition of biosolids was effective at maintaining high microbial heterotroph populations and preventing AMD generation over a period of 80 weeks, as verified by leachate chemistry and electron microscopy analyses. This research contributes to the ongoing development of a cost effective, multi-barrier geochemical-microbial control strategy for reduced mineral sulfide oxidation rates at source.",

keywords = "acid mine drainage (AMD), bioremediation, biosolids, heterotrophs, kinetic leach column, organic carbon, Organic carbon, Kinetic leach column, Acid mine drainage (AMD), Bioremediation, Heterotrophs, Biosolids",

author = "Omy Ogbughalu and Andrea Gerson and Gujie Qian and Roger Smart and Russell Schumann and Nobuyuki Kawashima and Rong Fan and Jun Li and Michael Short",

note = "(CC-BY 4.0) Open Access article licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license (http://creativecommons.org/licenses/by/4.0). ",

year = "2017",

month = jun,

day = "19",

doi = "10.3390/min7060105",

language = "English",

volume = "7",

pages = "1--12",

journal = "Minerals",

issn = "2075-163X",

publisher = "MDPIAG",

number = "6",

}

TY - JOUR

T1 - Heterotrophic Microbial Stimulation through Biosolids Addition for Enhanced Acid Mine Drainage Control

AU - Ogbughalu, Omy

AU - Gerson, Andrea

AU - Qian, Gujie

AU - Smart, Roger

AU - Schumann, Russell

AU - Kawashima, Nobuyuki

AU - Fan, Rong

AU - Li, Jun

AU - Short, Michael

N1 - (CC-BY 4.0) Open Access article licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license (http://creativecommons.org/licenses/by/4.0).

PY - 2017/6/19

Y1 - 2017/6/19

N2 - The effective control and treatment of acid mine drainage (AMD) from sulfide-containing mine wastes is of fundamental importance for current and future long-term sustainable and cost-effective mining industry operations, and for sustainable management of legacy AMD sites. Historically, AMD management has focused on the use of expensive neutralising chemicals to treat toxic leachates. Accordingly, there is a need to develop more cost-effective and efficient methods to prevent AMD at source. Laboratory kinetic leach column experiments, designed to mimic a sulfide-containing waste rock dump, were conducted to assess the potential of organic waste carbon supplements to stimulate heterotrophic microbial growth, and supress pyrite oxidation and AMD production. Microbiological results showed that the addition of biosolids was effective at maintaining high microbial heterotroph populations and preventing AMD generation over a period of 80 weeks, as verified by leachate chemistry and electron microscopy analyses. This research contributes to the ongoing development of a cost effective, multi-barrier geochemical-microbial control strategy for reduced mineral sulfide oxidation rates at source.

AB - The effective control and treatment of acid mine drainage (AMD) from sulfide-containing mine wastes is of fundamental importance for current and future long-term sustainable and cost-effective mining industry operations, and for sustainable management of legacy AMD sites. Historically, AMD management has focused on the use of expensive neutralising chemicals to treat toxic leachates. Accordingly, there is a need to develop more cost-effective and efficient methods to prevent AMD at source. Laboratory kinetic leach column experiments, designed to mimic a sulfide-containing waste rock dump, were conducted to assess the potential of organic waste carbon supplements to stimulate heterotrophic microbial growth, and supress pyrite oxidation and AMD production. Microbiological results showed that the addition of biosolids was effective at maintaining high microbial heterotroph populations and preventing AMD generation over a period of 80 weeks, as verified by leachate chemistry and electron microscopy analyses. This research contributes to the ongoing development of a cost effective, multi-barrier geochemical-microbial control strategy for reduced mineral sulfide oxidation rates at source.

KW - acid mine drainage (AMD)

KW - bioremediation

KW - biosolids

KW - heterotrophs

KW - kinetic leach column

KW - organic carbon

KW - Organic carbon

KW - Kinetic leach column

KW - Acid mine drainage (AMD)

KW - Bioremediation

KW - Heterotrophs

KW - Biosolids

UR - http://purl.org/au-research/grants/ARC/LP130100568

UR - http://www.scopus.com/inward/record.url?scp=85021433025&partnerID=8YFLogxK

U2 - 10.3390/min7060105

DO - 10.3390/min7060105

M3 - Article

SN - 2075-163X

VL - 7

SP - 1

EP - 12

JO - Minerals

JF - Minerals

IS - 6

M1 - 105

ER -

Heterotrophic Microbial Stimulation through Biosolids Addition for Enhanced Acid Mine Drainage Control

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this