Assessment of the Mass Flux in a Benthic Boundary Layer of a Stratified Lake. Understanding the underlying processes responsible for Benthic Bundary Layer (BBL) mass flux in stratified lakes is of fundamental ecological importance. By verifying the ability of the current Centre for Water Research hydrodynamics models to reproduce the dynamics of the BBL, Australia will cement its position as an international leader in the development of technologies to guide the management of lakes, reservoirs, ....Assessment of the Mass Flux in a Benthic Boundary Layer of a Stratified Lake. Understanding the underlying processes responsible for Benthic Bundary Layer (BBL) mass flux in stratified lakes is of fundamental ecological importance. By verifying the ability of the current Centre for Water Research hydrodynamics models to reproduce the dynamics of the BBL, Australia will cement its position as an international leader in the development of technologies to guide the management of lakes, reservoirs, estuaries and coastal areas. Furthermore, these water bodies are important sources and sinks of carbon and the extent to which they contribute to the national and international carbon inventory can be assessed using this technology.Read moreRead less
Factors controlling phytoplankton patchiness in a seasonally stratified lake. This project will determine what processes result in the formation of phytoplankton patches in lakes, over what scale, and how they can be parameterized into models to assist in managing aquatic systems. This will allow key parameters to be measured at the correct time and space scales. The Controlled Lagrangian Drogue coupled with correctly parameterized hydrodynamic and water quality models will provide the Austra ....Factors controlling phytoplankton patchiness in a seasonally stratified lake. This project will determine what processes result in the formation of phytoplankton patches in lakes, over what scale, and how they can be parameterized into models to assist in managing aquatic systems. This will allow key parameters to be measured at the correct time and space scales. The Controlled Lagrangian Drogue coupled with correctly parameterized hydrodynamic and water quality models will provide the Australian and International water industry with tools to measure and predict phytoplankton patchiness and make decisions about water quality treatment, offtake regimes and reservoir management. This will minimize the economic costs of water quality management and enhance the security of the quality of our water resources. Read moreRead less
Ammonia recovery from wastewaters using flow electrode-membrane systems. This project aims to develop an innovative approach to the recovery of ammonia from dilute wastewaters using coupled-flow electrode-membrane technologies that also enable energy recovery. The outcome of the project is expected to minimise damage to, and develop solutions for, restoration and remediation of, soil, fresh and potable water, urban catchments and marine systems, and significantly improve the environmental impact ....Ammonia recovery from wastewaters using flow electrode-membrane systems. This project aims to develop an innovative approach to the recovery of ammonia from dilute wastewaters using coupled-flow electrode-membrane technologies that also enable energy recovery. The outcome of the project is expected to minimise damage to, and develop solutions for, restoration and remediation of, soil, fresh and potable water, urban catchments and marine systems, and significantly improve the environmental impacts of ammonia.Read moreRead less
Maximizing reservoir water quality security through the use of a Lake Diagnostic System (LDS) and a Controlled Lagrangian Drogue (CLD). It is proposed to build on recent advancements in limnological research and existing measurement technologies to develop the hardware, algorithms and software to form a unique real time reservoir water quality management system, driven by minimal measurement inputs. This will remove the reliance on extensive expensive reservoir monitoring, previously necessary ....Maximizing reservoir water quality security through the use of a Lake Diagnostic System (LDS) and a Controlled Lagrangian Drogue (CLD). It is proposed to build on recent advancements in limnological research and existing measurement technologies to develop the hardware, algorithms and software to form a unique real time reservoir water quality management system, driven by minimal measurement inputs. This will remove the reliance on extensive expensive reservoir monitoring, previously necessary to characterize the lake spatial variability and seasonality, for full 3D modelling. This project will deliver to industry: two measurement tools to simplify reservoir monitoring, the LDS and CLD; and software tools to manage real time data collection, provide decision support to reservoir managers and to enable ?on-demand? scenario predictions.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0560828
Funder
Australian Research Council
Funding Amount
$363,288.00
Summary
Hydrodynamics and water quality field research facility. Understanding the fate of sediments and contaminants transported through catchments and the marine environment and their impacts on aquatic and marine ecosystems requires detailed hydrodynamic understanding at a range of scales. By establishing a state of the art research facility, JCU and GU together have a unique opportunity to provide hydrodynamic and water quality research which will support research priority areas of both institutions ....Hydrodynamics and water quality field research facility. Understanding the fate of sediments and contaminants transported through catchments and the marine environment and their impacts on aquatic and marine ecosystems requires detailed hydrodynamic understanding at a range of scales. By establishing a state of the art research facility, JCU and GU together have a unique opportunity to provide hydrodynamic and water quality research which will support research priority areas of both institutions, and advance the understanding of Australia's important tropical and subtropical ecosystems. Currently, excellent researchers and novel collaborations between and within James Cook University and Griffith University, are restricted by the lack of essential modern equipment.Read moreRead less
Reactive oxygen species generation by zerovalent silver nanoparticles; implications to toxicity and contaminant degradation. Nanoparticulate silver is now being used for the purification of drinking water yet many questions remain concerning its mode of purifying action. Here we investigate the generation of reactive oxygen species (ROS) by nanoparticulate silver and examine the relationship between ROS generation and the purifying action of "nano-silver".
Polytitanium coagulant for water purification: a systematic investigation to identify mechanisms and benefits over today's technologies. This project will develop a more efficient, environmentally-friendly process for water treatment, using an approach involving titanium that has been attracting interest in recent years, but which is not yet well understood. An Australian-Chinese collaboration will build on existing Australian intellectual property in this project.
Developing an innovative high performance thin-film composite membrane using functionalized nanofibrous support layers for engineered osmosis. Engineered osmosis (EO) is based on the principles of natural osmosis and is an emerging technology for low energy desalination and power generation by pressure-retarded osmosis. However, the process is limited by the challenge of the internal concentration polarisation (ICP) effects experienced when currently available membranes are used. Therefore, the ....Developing an innovative high performance thin-film composite membrane using functionalized nanofibrous support layers for engineered osmosis. Engineered osmosis (EO) is based on the principles of natural osmosis and is an emerging technology for low energy desalination and power generation by pressure-retarded osmosis. However, the process is limited by the challenge of the internal concentration polarisation (ICP) effects experienced when currently available membranes are used. Therefore, the aims of this project are to enhance our understanding of the ICP phenomenon in EO process and to evaluate strategies to mitigate the influence of ICP effects on the performance of the EO process by incorporating innovative functionalised nanofibrous support layers for thin-film composite EO membrane. A significant increase of water flux and mechanical strength is anticipated.Read moreRead less
The application of inverse methods for resolving velocity, density and mixing fields in lakes and estuaries. The two techniques to be developed and tested here will allow the measurement of the 3D density and velocity fields in lakes and estuaries using only simple instruments and with minimum lake obstruction. Coupled with a Real Time Management System, these techniques can be used to validate numerical models and to simulate scenarios, such as future flood events, which have the potential fo ....The application of inverse methods for resolving velocity, density and mixing fields in lakes and estuaries. The two techniques to be developed and tested here will allow the measurement of the 3D density and velocity fields in lakes and estuaries using only simple instruments and with minimum lake obstruction. Coupled with a Real Time Management System, these techniques can be used to validate numerical models and to simulate scenarios, such as future flood events, which have the potential for contamination of water quality. The output from these simulations is then used, again in real time, to evaluate the new Index of Sustainable Functionality of the water body. When augmented with the results from this research we would have a tool that would help manage lakes and reservoirs to optimize the water quality, while maintaining the supply.Read moreRead less
Optimising CDI Water Treatment for Ion Removal and Energy Recovery. This project aims to develop capacitive deionisation (CDI) for the decontamination of water. The specific goals are firstly to identify applications where CDI could cost-effectively make brackish, contaminated water usable. The project then intends to optimise CDI design and operating conditions to remove particular ions of concern and to develop approaches to energy recovery. The main outcome is intended to be a photovoltaic-po ....Optimising CDI Water Treatment for Ion Removal and Energy Recovery. This project aims to develop capacitive deionisation (CDI) for the decontamination of water. The specific goals are firstly to identify applications where CDI could cost-effectively make brackish, contaminated water usable. The project then intends to optimise CDI design and operating conditions to remove particular ions of concern and to develop approaches to energy recovery. The main outcome is intended to be a photovoltaic-powered CDI unit that is capable of stand-alone operation with optimal energy recovery and inbuilt monitoring, and control technology enabling cost-effective and sustainable operation.Read moreRead less