Short- and long-term mitigation strategies for acid and metalliferous drainage control from iron ore mine wastes. Acid and metalliferous drainage from mine wastes, caused by oxidation of sulfide minerals, particularly pyrite, are a critical environmental issue worldwide. Although options to retard sulfide oxidation exist, including encapsulation methods, chemical additives and inhibition of iron-oxidising bacteria, these suffer from long-term instability. The project aims to investigate mechanis ....Short- and long-term mitigation strategies for acid and metalliferous drainage control from iron ore mine wastes. Acid and metalliferous drainage from mine wastes, caused by oxidation of sulfide minerals, particularly pyrite, are a critical environmental issue worldwide. Although options to retard sulfide oxidation exist, including encapsulation methods, chemical additives and inhibition of iron-oxidising bacteria, these suffer from long-term instability. The project aims to investigate mechanistic approaches, using readily available mineralogical materials, to provide passivating conditions resulting in slowed oxidation rates. The project’s focus is on treatments for wastes from iron ore deposits which are of high economic significance to Australia. The outcome aims to be a treatment ‘pathway’ enabling practical waste rock treatment over the acid forming time-profile.Read moreRead less
Long-term acid rock and tailings drainage mitigation through source control. Effective long-term management of acid rock drainage (ARD) from sulfidic mine wastes in current, exhausted and legacy mine sites is of critical importance to communities and for sustainable mining. An optimised geochemical and microbial multi-barrier approach to long-term reduction of ARD to environmentally acceptable rates will be developed by this project.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE140100042
Funder
Australian Research Council
Funding Amount
$190,000.00
Summary
UV to mid-infrared fluorescence spectrometer for use in mineral analysis, radiation dosimetry, and laser materials characterisation. Ultraviolet to mid-infrared fluorescence spectrometer for use in mineral analysis, radiation dosimetry and laser materials characterisation: This project will provide equipment with a vast capability to collect ultraviolet to mid-infrared fluorescence with high temporal measurement accuracy, and highly flexible excitation (spectral and temporal). This will enhance ....UV to mid-infrared fluorescence spectrometer for use in mineral analysis, radiation dosimetry, and laser materials characterisation. Ultraviolet to mid-infrared fluorescence spectrometer for use in mineral analysis, radiation dosimetry and laser materials characterisation: This project will provide equipment with a vast capability to collect ultraviolet to mid-infrared fluorescence with high temporal measurement accuracy, and highly flexible excitation (spectral and temporal). This will enhance active research into new glasses and laser crystals, probing of defect states resulting from ionising radiation absorption in environmental and medical dosimetry materials, investigation of novel fluorescence techniques for mineral identification, through to improving chemical detection capability (for example, detection of explosives). The instrument comprises modules that enable excitation in the ultraviolet, visible, and infrared from a tunable laser system, and high-efficiency collection and processing of fluorescence spectra.Read moreRead less
Engineered clay-polysaccharide composites for efficient nutrient delivery. Nitrogen (N) nutrient use efficiency of most arable crops in Australian soils is low, leading to excessive application of this nutrient. The low N use efficiency is attributed to its loss through leaching and gaseous emission, which contributes to both economic burden of the farming community and also results in environmental degradation. This project aims to work with clay industries to develop fertiliser products with c ....Engineered clay-polysaccharide composites for efficient nutrient delivery. Nitrogen (N) nutrient use efficiency of most arable crops in Australian soils is low, leading to excessive application of this nutrient. The low N use efficiency is attributed to its loss through leaching and gaseous emission, which contributes to both economic burden of the farming community and also results in environmental degradation. This project aims to work with clay industries to develop fertiliser products with controlled release characteristics to increase N use efficiency and farm productivity. It will also create new market opportunities for the mining industry for the use of clays and create novel materials for delivery of nutrients and moisture for the agrochemical industry resulting in the creation of marketing opportunities.Read moreRead less
ARC Centre of Excellence for Enabling Eco-Efficient Beneficiation of Minerals. The aim of the Centre is to progress scientific knowledge to establish transformational improvement in minerals beneficiation, essential for meeting global demand for metals. The research aims to achieve more selective, faster, and efficient separations, combining major advances in separation technologies with increased functionality of new reagents. The Centre outcomes will also ensure the sustainability of the miner ....ARC Centre of Excellence for Enabling Eco-Efficient Beneficiation of Minerals. The aim of the Centre is to progress scientific knowledge to establish transformational improvement in minerals beneficiation, essential for meeting global demand for metals. The research aims to achieve more selective, faster, and efficient separations, combining major advances in separation technologies with increased functionality of new reagents. The Centre outcomes will also ensure the sustainability of the minerals industry in Australia, through a significant reduction in cost, environmental impact, and through lower energy and water usage. The Centre also seeks to establish a new generation of scientists and research leaders in minerals beneficiation to support the innovation needed into the future by this major Australian industry.Read moreRead less
Collection of coarse, composite particles by bubbles in flotation. The minerals industry is of great importance to the Australian economy and flotation is an essential process for the separation of base metals, non-sulphide minerals, and coal. Community benefits will come through lower energy and water consumption in mineral processing. The industry partners will benefit also through increased process efficiencies including increased recovery and lower costs, as well as an exposure to unique m ....Collection of coarse, composite particles by bubbles in flotation. The minerals industry is of great importance to the Australian economy and flotation is an essential process for the separation of base metals, non-sulphide minerals, and coal. Community benefits will come through lower energy and water consumption in mineral processing. The industry partners will benefit also through increased process efficiencies including increased recovery and lower costs, as well as an exposure to unique methodologies that will maintain their technological edge, and the potential to significantly increase their profitability by optimising their mineral processing operations. This project will contribute to the maintenance of a critical mass of research infrastructure at the partner organisations.Read moreRead less
The microbe factory: a novel approach to benign minerals processing. The purpose of this project is to reduce the environmental impact of current mining practices. The anticipated outcome of this project is the replacement of toxic chemicals used in the separation of minerals with the novel use of environmentally benign microbes.
Critical metals from complex copper ores. The aims of this project address the critical mineral resource potential of complex copper ores. The research will generate new knowledge on the concentration, distribution, physical form and chemical speciation of critical minerals, including tellurium, cobalt and rare earth elements, in ores and processing streams using innovative approaches and utilising state-of-the-art analytical techniques. Expected outcomes include integrated models for critical e ....Critical metals from complex copper ores. The aims of this project address the critical mineral resource potential of complex copper ores. The research will generate new knowledge on the concentration, distribution, physical form and chemical speciation of critical minerals, including tellurium, cobalt and rare earth elements, in ores and processing streams using innovative approaches and utilising state-of-the-art analytical techniques. Expected outcomes include integrated models for critical element endowments in Australia's largest copper resource, Olympic Dam (S.A.). Future recovery of these elements would add significant value to existing operations, providing long-term economic and commercial benefits and would also contribute to Australia's transition to a low-carbon future.Read moreRead less
Reducing the deleterious impacts of clay particle interactions with valuable minerals in copper and gold processing. This project seeks to understand the rheological behaviour of clay minerals and the effect of the viscosity caused by clay minerals on gas dispersion, the transport of network structures and the locking of the structures in the froth in mineral flotation. Novel methods will be developed to improve flotation separation by reducing the viscosity.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE100100149
Funder
Australian Research Council
Funding Amount
$500,000.00
Summary
Spectroscopic imaging for materials, minerals and life sciences. The spectroscopic imaging equipment highlighted in this proposal will produce a number of outcomes of national benefit. First, it will elevate the impact of research in materials, minerals, and life sciences in Australia, all of which are key areas for the national economy and community. Second, the equipment will be integral to the teaching and research nexus and experiential learning facility for a new wave of materials science ....Spectroscopic imaging for materials, minerals and life sciences. The spectroscopic imaging equipment highlighted in this proposal will produce a number of outcomes of national benefit. First, it will elevate the impact of research in materials, minerals, and life sciences in Australia, all of which are key areas for the national economy and community. Second, the equipment will be integral to the teaching and research nexus and experiential learning facility for a new wave of materials science and engineering students to be educated at UniSA in the EIF-funded M2 building at Mawson Lakes. Finally, the anticipated outcomes of the research to be supported are significant and relate clearly to a number of National Research Priorities.Read moreRead less