Discovery Early Career Researcher Award - Grant ID: DE150101477
Funder
Australian Research Council
Funding Amount
$360,000.00
Summary
Identifying a new source of natural volatile organohalogens. Natural volatile organohalogens have recently been linked to significant atmospheric ozone depletion. The fundamental reactions controlling their emission and fate are unresolved within the international scientific literature. This project aims to use novel geochemical techniques to determine the role of ultraviolet radiation in organohalogen emissions from degraded saline and acidic landscapes. The expected outcome will shift our unde ....Identifying a new source of natural volatile organohalogens. Natural volatile organohalogens have recently been linked to significant atmospheric ozone depletion. The fundamental reactions controlling their emission and fate are unresolved within the international scientific literature. This project aims to use novel geochemical techniques to determine the role of ultraviolet radiation in organohalogen emissions from degraded saline and acidic landscapes. The expected outcome will shift our understanding of natural volatile organohalogens and predictions of stratospheric ozone recovery. The project also aims to systematically resolve the feedback between elevated ultraviolet radiation and ozone layer depletion, and is therefore highly innovative.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE150100500
Funder
Australian Research Council
Funding Amount
$321,000.00
Summary
Electron transfer at the microbe-mineral interface via cytochromes/exudates. This project aims to develop the kinetic (both in vivo and in vitro) and thermodynamic models of the extracellular electron transfer processes at the microbe-mineral interface via outer membrane cytochromes and exudates of dissimilatory iron-reducing bacteria, and elucidating the potential electron transfer process from iron-reducing bacteria to semiconducting iron minerals. The observed models will provide a more compr ....Electron transfer at the microbe-mineral interface via cytochromes/exudates. This project aims to develop the kinetic (both in vivo and in vitro) and thermodynamic models of the extracellular electron transfer processes at the microbe-mineral interface via outer membrane cytochromes and exudates of dissimilatory iron-reducing bacteria, and elucidating the potential electron transfer process from iron-reducing bacteria to semiconducting iron minerals. The observed models will provide a more comprehensive understanding of electron transfer reactions at the microbe-mineral interface, which will be helpful in the prediction of natural redox processes of iron transformation and in the development of bioremediation strategies for contaminated sites.Read moreRead less
Sea-level rise as a driver for arsenic mobilisation: unravelling the fundamental hydro-geochemical controls. This project will reveal the effects of rising sea-levels on arsenic mobilisation in vulnerable coastal lowlands. By resolving coupled interactions between tides and geochemistry, this project will provide the necessary knowledge platform to underpin management responses to protect sensitive estuarine and coastal waters.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE140100007
Funder
Australian Research Council
Funding Amount
$330,000.00
Summary
An integrated facility for the advanced characterisation of environmental particles. An integrated facility for the advanced characterisation of environmental particles: This project will result in development of a state-of-the-art facility for comprehensive determination of particle size, concentration and surface properties for a wide range of environmentally occurring particles, in rapid succession. Combining several novel and advanced instruments into an integrated facility will permit in si ....An integrated facility for the advanced characterisation of environmental particles. An integrated facility for the advanced characterisation of environmental particles: This project will result in development of a state-of-the-art facility for comprehensive determination of particle size, concentration and surface properties for a wide range of environmentally occurring particles, in rapid succession. Combining several novel and advanced instruments into an integrated facility will permit in situ and kinetic experiments that are currently unable to be easily undertaken anywhere in Australia. This will enable major progress for internationally significant research activities in areas including sediment geochemistry, contaminant mobility, and biogeochemistry. The project will thus help to address several pressing global environmental issues while adding substantial new capabilities for Australian research.Read moreRead less
To what extent does fire affect karst processes? Burning questions for fire management. Fire management is of crucial importance for both asset protection and ecosystem management. However, the effects of fire in karst systems is poorly understood. This project will undertake experiments to determine the effects of fire on surface and subsurface processes, including stalagmite formation, that can be used to improve fire management policy.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE120100201
Funder
Australian Research Council
Funding Amount
$200,000.00
Summary
High-resolution laser ablation inductively coupled plasma mass spectrometer for cutting edge geochemistry research. The new-generation laser ablation inductively coupled plasma mass spectrometer is a highly versatile precise analytical instrument for palaeo-environmental, palaeoclimate, archaeological and geochemical studies. With this instrument Australia will continue to lead the way in cutting-edge geoscience research.