Smart management of disinfectant in chloraminated water-supply systems. Smart management of disinfectant in chloraminated water-supply systems. This project aims to develop an adaptive, real-time control system for managing disinfectant residuals in chloraminated water supply systems. While chloramine delivers microbiologically safe drinking water in warmer climates and in long distribution systems, it is largely unpredictable, costs water utilities millions of dollars annually, and has uncertai ....Smart management of disinfectant in chloraminated water-supply systems. Smart management of disinfectant in chloraminated water-supply systems. This project aims to develop an adaptive, real-time control system for managing disinfectant residuals in chloraminated water supply systems. While chloramine delivers microbiologically safe drinking water in warmer climates and in long distribution systems, it is largely unpredictable, costs water utilities millions of dollars annually, and has uncertain benefits. This project’s control system will be guided by quantitative models formulated from multi-pronged, fundamental experiments. The project will quantify microbial chloramine decay and determine mechanisms to increase predictability. The project will develop and demonstrate a real-time control technology which delivered microbiologically safe, cost-efficient drinking water to people in warmer climates, despite warming climate and increasing population.Read moreRead less
Microbiology of a tropical creek impacted by sewage effluent: novel assessment using N-cycle functional markers and changes in community composition. Although most of Darwin Harbour has good water quality, there is much concern about local 'hot spots' where sewage has degraded ecosystem processes and values. As no bio-indicators of tropical marine water and sediment quality are known, the project will identify functional markers and microbial indicators of stress for integrated environmental mo ....Microbiology of a tropical creek impacted by sewage effluent: novel assessment using N-cycle functional markers and changes in community composition. Although most of Darwin Harbour has good water quality, there is much concern about local 'hot spots' where sewage has degraded ecosystem processes and values. As no bio-indicators of tropical marine water and sediment quality are known, the project will identify functional markers and microbial indicators of stress for integrated environmental monitoring.Read moreRead less
Interactions between sulfur, nitrogen, and iron cycles in the sustainable management and use of acid sulfate soils. Acid Sulfate Soils (ASS) can cause major land management and environmental problems. It has been proposed that the linkages between the Sulfur, Nitrogen, and Iron biogeochemical cycles deterrmine the environmental and crop production hazards associated with use of ASS. In order to develop best management practices for ASS, it is important to research those linkages and determine th ....Interactions between sulfur, nitrogen, and iron cycles in the sustainable management and use of acid sulfate soils. Acid Sulfate Soils (ASS) can cause major land management and environmental problems. It has been proposed that the linkages between the Sulfur, Nitrogen, and Iron biogeochemical cycles deterrmine the environmental and crop production hazards associated with use of ASS. In order to develop best management practices for ASS, it is important to research those linkages and determine their contribution to fluxes of materials exported from these soils. This project will carry out that research and will transfer results to industry partners to improve land management practices and identify appropriate landuses in ASS landcapes.Read moreRead less
E. coli as an indicator of faecal contamination in the Australian context. The goal of this research is to improve our ability to use Escherichia coli as an indicator of water quality by determining the extent to which non-faecal sources of E. coli contribute to coliform counts and to develop a method to differentiate non-faecal E. coli from those that are faecal derived.