A5037446225- Radioactive element chemistry and processing
- Radioactivity and Radon Measurements
- Radioactive contamination and transfer
- Australian History and Society
- Irish and British Studies
- Heavy metals in environment
- Nuclear Physics and Applications
- Groundwater and Isotope Geochemistry
- Isotope Analysis in Ecology
- Commonwealth, Australian Politics and Federalism
- Mine drainage and remediation techniques
- Soil Carbon and Nitrogen Dynamics
- Bauxite Residue and Utilization
- Plant nutrient uptake and metabolism
- Historical and Cultural Archaeology Studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Nuclear materials and radiation effects
- Nuclear Materials and Properties
- Groundwater flow and contamination studies
- American Constitutional Law and Politics
- Geology and Paleoclimatology Research
- Soil and Unsaturated Flow
- Colonialism, slavery, and trade
- Soil erosion and sediment transport
- Historical Studies of British Isles
Australian Nuclear Science and Technology Organisation
2014-2024
University Health Network
2022-2024
University of Toronto
2022-2024
Toronto General Hospital
2022
Western Michigan University
2022
CDM Smith (United States)
2017-2019
Smith Clinic
2017-2019
The University of Queensland
2013-2018
Brazosport College
2017
University of Stirling
2016
Titanium dioxide (TiO2) has often served as a model substrate for experimental sorption studies of environmental contaminants. However, various forms Ti-oxide have been used, and the different properties these materials not thoroughly studied. We investigated uranium on some characterized TiO2 surfaces with particular attention to influence surface area, charge, impurities. The U(VI) differed significantly between samples. Aggressive pretreatment one material remove impurities altered...
Increasing concentrations of dissolved silicate progressively retard Fe(II) oxidation kinetics in the circum-neutral pH range 6.0-7.0. As Si:Fe molar ratios increase from 0 to 2, primary Fe(III) product transitions lepidocrocite a ferrihydrite/silica-ferrihydrite composite. Empirical results, supported by chemical kinetic modeling, indicated that decreased heterogeneous rate was not due differences absolute sorption between two solids types or competition for adsorption sites presence...
Phosphorus, a critical environmental pollutant, is effectively removed from stormwater by biofiltration systems, mainly via sedimentation and straining. However, the fate of dissolved inflow phosphorus concentrations in these systems unknown. Given growing interest using to treat other polluted waters, for example greywater, such an understanding imperative optimize designs successful long-term performance. A mass balance method radiotracer, 32P (as H3PO4), were used investigate partitioning...
Multiple tracer-element and isotope approaches were applied at a 1960s-era low-level radioactive waste burial site located in the Lucas Heights area on southwest urban fringe of Sydney, Australia. The is situated among other municipal industrial (solid liquid) disposal sites causing potential mixing leachates. Local rainfall contains marine-derived major ion ratios that are modified during infiltration depending interactions. local geology favours retention contaminants by ion-exchange...
Abstract Reallocation of nutrients from roots to shoots is essential for plant regrowth in grasslands, particularly nutrient‐poor conditions. However, the response root nutrient reallocation changes nitrogen (N) and water availability remains largely unknown. Using a novel 15 N 32 P labelling technique, we quantified contribution phosphorus (P) shoot either or direct soil uptake perennial grasses exposed high‐frequency deficit irrigation (HFDI) addition. Without addition, HFDI showed no...
Radioactive waste containing a few grams of plutonium (Pu) was disposed between 1960 and 1968 in trenches at the Little Forest Burial Ground (LFBG), near Sydney, Australia. A water sampling point installed former trench has enabled radionuclide content response level to rainfall be studied. The contains readily measurable Pu activity (~12 Bq/L (239+240)Pu 0.45 μm-filtered water), there is an associated contamination surface soils. highest soil 829 Bq/kg shallow sample (0-1 cm depth) point....
During the 1960s, radioactive waste containing small amounts of plutonium (Pu) and americium (Am) was disposed in shallow trenches at Little Forest Burial Ground (LFBG), located near southern suburbs Sydney, Australia. Because periodic saturation overflowing former disposal trenches, Pu Am have been transferred from buried wastes into surrounding surface soils. The presence readily detected trench waters provides a unique opportunity to study their aqueous speciation under environmentally...