Reactive barriers for the remediation of fluoride contamination in groundwater. This project will build the first pilot scale calcite permeable reactive barrier for the remediation of fluoride contamination in groundwater at VAW aluminium. At VAW, fluoride has contaminated groundwater at concentrations up to 3000mg/L, levels far higher than the drinking water guideline value of 1.5mg/L. The barrier design will be based on laboratory work from a previous SPIRT project with VAW and the CIs which h ....Reactive barriers for the remediation of fluoride contamination in groundwater. This project will build the first pilot scale calcite permeable reactive barrier for the remediation of fluoride contamination in groundwater at VAW aluminium. At VAW, fluoride has contaminated groundwater at concentrations up to 3000mg/L, levels far higher than the drinking water guideline value of 1.5mg/L. The barrier design will be based on laboratory work from a previous SPIRT project with VAW and the CIs which has shown that calcite can remove 99% of fluoride contamination from water. The project will prove the technology at the field scale and provide the basis for its application to other contaminants.Read moreRead less
An innovative strategy for stormwater remediation and reduction of contaminant supply from catchments. Many urbanised harbours world-wide are polluted and the main source is stormwater. Currently, emphasis is to remove gross pollutants from stormwater using numerous devices scattered through the catchment. In a radical shift from traditional approaches, we will identify primary contaminant sources in the catchment for later targeted education and regulation and a single remediation device will r ....An innovative strategy for stormwater remediation and reduction of contaminant supply from catchments. Many urbanised harbours world-wide are polluted and the main source is stormwater. Currently, emphasis is to remove gross pollutants from stormwater using numerous devices scattered through the catchment. In a radical shift from traditional approaches, we will identify primary contaminant sources in the catchment for later targeted education and regulation and a single remediation device will remove most toxic substances in stormwater currently discharged to estuaries. Stormwater reuse will provide a new valuable urban resource. This paradigm shift in traditional stormwater strategy will ensure biodiversity and ecologically sustainable development of urbanised ports. Port Jackson is used as a test case.Read moreRead less
Drains in acid sulfate soils: behaviour and management for optimal water quality. Water draining from acid sulfate soil (ASS) into rivers via drains is often severely polluted, resulting in massive fish kills and chronic environmental and economic damage. Effective drain management techniques to minimise the export of acidity and deoxygenating drain oozes will be developed. The basic processes that affect hydraulic functioning, acidity and toxic drain ooze export in ASS drainage systems will be ....Drains in acid sulfate soils: behaviour and management for optimal water quality. Water draining from acid sulfate soil (ASS) into rivers via drains is often severely polluted, resulting in massive fish kills and chronic environmental and economic damage. Effective drain management techniques to minimise the export of acidity and deoxygenating drain oozes will be developed. The basic processes that affect hydraulic functioning, acidity and toxic drain ooze export in ASS drainage systems will be addressed. This project will provide the basis for the environmentally sound management of these drains. The technology developed here will be applicable throughout Australia and can be exported overseas, especially to south-east Asia.Read moreRead less