- Microbial Fuel Cells and Bioremediation
- Soil Carbon and Nitrogen Dynamics
- Constructed Wetlands for Wastewater Treatment
- Wastewater Treatment and Nitrogen Removal
- Mine drainage and remediation techniques
- Geochemistry and Elemental Analysis
- Rangeland and Wildlife Management
- Enzyme-mediated dye degradation
- Burkholderia infections and melioidosis
- Turfgrass Adaptation and Management
- Heavy metals in environment
- Radioactive element chemistry and processing
- Water Treatment and Disinfection
- Aeolian processes and effects
- Chemical Looping and Thermochemical Processes
- Phosphorus and nutrient management
- Soil and Water Nutrient Dynamics
- Iron oxide chemistry and applications
- Electrochemical sensors and biosensors
- Plant Micronutrient Interactions and Effects
- Ammonia Synthesis and Nitrogen Reduction
- Plant responses to elevated CO2
- Diatoms and Algae Research
- Microbial bioremediation and biosurfactants
- Advanced Nanomaterials in Catalysis
The University of Queensland
1999-2023
Australian Water Quality Centre
2022
Queensland University of Technology
2011-2016
Griffith University
2004
Mainstream nitrogen removal via anammox is widely recognized as a promising wastewater treatment process. However, its application challenging at large scale due to unstable suppression of nitrite-oxidizing bacteria (NOB). In this study, pilot-scale mainstream process was implemented in an Integrated Fixed-film Activated Sludge (IFAS) configuration. Stable operation with robust NOB maintained for over one year. This achieved through integration three key control strategies: i) low dissolved...
Pedomicrobium sp. ACM 3067 is a budding-hyphal bacterium belonging to the alpha-Proteobacteria which able oxidize soluble Mn2+ insoluble manganese oxide. A cosmid, from whole-genome library, containing putative genes responsible for oxidation was identified and primer-walking approach yielded 4350 bp of novel sequence. Analysis this sequence showed presence predicted three-gene operon, moxCBA. The moxA gene product homology multicopper oxidases (MCOs) contained characteristic four...
Subsurface flow wetlands contain gravel or sand substrates through which the wastewater flows vertically horizontally. The aims of this study were, firstly, to quantify biofilm development associated with different size in sections a subsurface wetland and without plants, secondly, conduct laboratory experiments examine role biofilms nutrient removal. Techniques included: bacterial cell counts, EPS total protein extraction. Based on comparative sample volume, only was greater smaller 5 mm...
Abstract We examined the abundance and distribution of neutrophilic, microaerophilic Fe(II)-oxidizing bacteria (FeOB) in aquatic habitats a highly weathered, subtropical coastal catchment where Fe biogeochemistry is environmental significance. Laboratory cultivation microscopy indicated that stalked Gallionella sheathed Leptothrix-like FeOB were present microbial mats associated with circumneutral-pH, groundwater seep streambank surface sediment, whereas unicellular widespread subsurface...
ABSTRACT Environmental Burkholderia pseudomallei isolated from sandy soil at Castle Hill, Townsville, in the dry tropic region of Queensland, Australia, was inoculated into sterile-soil laboratory microcosms subjected to variable moisture. Survival and sublethal injury B. strain were monitored by recovery using culture-based methods. Soil extraction buffer yielded higher recoveries as an agent than sterile distilled water. not recoverable when desiccated but remained moist 91 days'...