Dynamics of the Geochemistry, Mineralogy and Microbial Ecology in Bayer-Sinter Bauxite Residue Rehabilitation driven by the Microbial Metabolism of Organic Matter

Alex Chiu

doi:10.26182/y87j-fq64

Dynamics of the Geochemistry, Mineralogy and Microbial Ecology in Bayer-Sinter Bauxite Residue Rehabilitation driven by the Microbial Metabolism of Organic Matter

Alex Chiu

UWA School of Agriculture and Environment

Research output: Thesis › Master's Thesis

139 Downloads (Pure)

Abstract

Amelioration of Bayer-sinter bauxite residue (BSBR) is a prerequisite for the establishment of direct revegetation for the rehabilitation of a BSBR storage facility. A glasshouse study was conducted to elucidate the dynamics of the biogeochemistry of BSBR during rehabilitation. Addition of microbial inocula and organic matter to BSBR significantly lowered the pH and EC and restored a diverse microbial community in the BSBR in 30 days. Calcium mineral dissolution was observed and correlated with the dealkalization and desalination of BSBR. These promising results demonstrated the feasibility of such rehabilitation strategies for BSBR.

Original language	English
Qualification	Masters
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Burton, Michael, Supervisor Gleeson, Deirdre, Supervisor Leopold, Matthias, Supervisor
Thesis sponsors	Australian Government Research Training Program
Award date	15 Dec 2021
DOIs	https://doi.org/10.26182/y87j-fq64
Publication status	Unpublished - 2021

Embargo information

Embargoed from 16/12/2021 to 16/12/2023. Made publicly available on 16/12/2023.

Access to Document

10.26182/y87j-fq64

THESIS - MASTER OF PHILOSOPHY - CHIU, Tsz Ho Alex - 2021
This work is protected by Copyright. You may print or download ONE copy of this document for the purpose of your own non-commercial research or study. Any other use requires permission from the copyright owner. The Copyright Act requires you to attribute any copyright works you quote or paraphrase.

Cite this

@mastersthesis{034e680efb7342d48a6c6e24a4ebee89,

title = "Dynamics of the Geochemistry, Mineralogy and Microbial Ecology in Bayer-Sinter Bauxite Residue Rehabilitation driven by the Microbial Metabolism of Organic Matter",

abstract = "Amelioration of Bayer-sinter bauxite residue (BSBR) is a prerequisite for the establishment of direct revegetation for the rehabilitation of a BSBR storage facility. A glasshouse study was conducted to elucidate the dynamics of the biogeochemistry of BSBR during rehabilitation. Addition of microbial inocula and organic matter to BSBR significantly lowered the pH and EC and restored a diverse microbial community in the BSBR in 30 days. Calcium mineral dissolution was observed and correlated with the dealkalization and desalination of BSBR. These promising results demonstrated the feasibility of such rehabilitation strategies for BSBR.",

keywords = "Bauxite residues, Bioremedation, Microbial ecology, Geochemistry, Mineralogy, Biogeochemistry",

author = "Alex Chiu",

year = "2021",

doi = "10.26182/y87j-fq64",

language = "English",

school = "The University of Western Australia",

}

TY - THES

T1 - Dynamics of the Geochemistry, Mineralogy and Microbial Ecology in Bayer-Sinter Bauxite Residue Rehabilitation driven by the Microbial Metabolism of Organic Matter

AU - Chiu, Alex

PY - 2021

Y1 - 2021

N2 - Amelioration of Bayer-sinter bauxite residue (BSBR) is a prerequisite for the establishment of direct revegetation for the rehabilitation of a BSBR storage facility. A glasshouse study was conducted to elucidate the dynamics of the biogeochemistry of BSBR during rehabilitation. Addition of microbial inocula and organic matter to BSBR significantly lowered the pH and EC and restored a diverse microbial community in the BSBR in 30 days. Calcium mineral dissolution was observed and correlated with the dealkalization and desalination of BSBR. These promising results demonstrated the feasibility of such rehabilitation strategies for BSBR.

AB - Amelioration of Bayer-sinter bauxite residue (BSBR) is a prerequisite for the establishment of direct revegetation for the rehabilitation of a BSBR storage facility. A glasshouse study was conducted to elucidate the dynamics of the biogeochemistry of BSBR during rehabilitation. Addition of microbial inocula and organic matter to BSBR significantly lowered the pH and EC and restored a diverse microbial community in the BSBR in 30 days. Calcium mineral dissolution was observed and correlated with the dealkalization and desalination of BSBR. These promising results demonstrated the feasibility of such rehabilitation strategies for BSBR.

KW - Bauxite residues

KW - Bioremedation

KW - Microbial ecology

KW - Geochemistry

KW - Mineralogy

KW - Biogeochemistry

U2 - 10.26182/y87j-fq64

DO - 10.26182/y87j-fq64

M3 - Master's Thesis

ER -

Dynamics of the Geochemistry, Mineralogy and Microbial Ecology in Bayer-Sinter Bauxite Residue Rehabilitation driven by the Microbial Metabolism of Organic Matter

Abstract

Embargo information

Access to Document

Fingerprint

Cite this