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A Case Study In Water Sensitive Urban Design - I White

This paper reports on a water sensitive urban design initiative by an owner builder at a private residence in Ipswich, Australia. The project applies custom, emergent and established technologies to the management of the owners’ lifestyle preferences and problematic site conditions. It is also an innovative project from the perspective of current governance conditions, making use of previously untried regulatory mechanisms. The project comprises two integrated components: rainwater harvesting and onsite waste treatment, potentially offsetting household reliance on the mains water supply by as much as 90% and offering further beneficial externalities. Rainwater is harvested from a 135m roof catchment through a conveyance system that includes leaf diverters and screens, though no first flush diverter, to a 15kL PE storage tank.

 

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An Integrated Approach to Water Conservation for Large Users
Water conservation programs targeted at large users will play an integral role securing water supplies for Australian cities in years to come. A hierarchical approach to water conservation– reducing consumption as a priority, then considering internal re-use of water and replacement of potable water with alternative sources – should be the key principle in sustainable water management.
The application of this approach relies on a sound understanding of water consumption at a site: where water is used, why, when and how. This entails smart- and sub-metering of the water supply and detailed analysis of site activities to produce a site water balance.
The hierarchical approach can then be applied, and conservation options can be costed to assess financial viability. ‘Packaging’ measures with different payback times together should be considered, along with funding support available.

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31 USING WSUD TO RESOLVE COMPETING OBJECTIVES-- A CASE STUDY OF A SUSTAINABLE INDUSTRIAL DEVELOPMENT

Located within the Hunter River floodplain at Heatherbrae and overlying the Tomago sand bed drinking water aquifer, the development of the Kinross Business Park was frustrated by numerous environmental constraints for many years. This site was constrained by the sensitive underlying shallow aquifer, a sensitive receiving water and by the need to maintain floodplain storage and peak flows. Being a sandy site, the pre-development hydrological regime was one of infiltration. Runoff, it was predicted, would have occurred from this sandy site less frequently than once in ten years. It was not considered possible to develop this site using conventional drainage systems. However, the careful, well-planned application of water sensitive urban design has enabled each of the constraints to be overcome.

 

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A mitigation strategy for the natural disaster of poverty in Bangladesh

This paper reports on a water sensitive urban design initiative by an owner builder at a private residence in Ipswich, Australia. The project applies custom, emergent and established technologies to the management of the owners’ lifestyle preferences and problematic site conditions. It is also an innovative project from the perspective of current governance conditions, making use of previously untried regulatory mechanisms. The project comprises two integrated components: rainwater harvesting and onsite waste treatment, potentially offsetting household reliance on the mains water supply by as much as 90% and offering further beneficial externalities. Rainwater is harvested from a 135m roof catchment through a conveyance system that includes leaf diverters and screens, though no first flush diverter, to a 15kL PE storage tank.

 

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Achieving the Water and Sanitation MDGs in Bangladesh

This paper reports on a water sensitive urban design initiative by an owner builder at a private residence in Ipswich, Australia. The project applies custom, emergent and established technologies to the management of the owners’ lifestyle preferences and problematic site conditions. It is also an innovative project from the perspective of current governance conditions, making use of previously untried regulatory mechanisms. The project comprises two integrated components: rainwater harvesting and onsite waste treatment, potentially offsetting household reliance on the mains water supply by as much as 90% and offering further beneficial externalities. Rainwater is harvested from a 135m roof catchment through a conveyance system that includes leaf diverters and screens, though no first flush diverter, to a 15kL PE storage tank.

 

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ADOPTION OF ARSENIC-SAFE DRINKING WATER PRACTICE IN RURAL BANGLADESH: AN AVERTING BEHAVIOR MODEL

This paper reports on a water sensitive urban design initiative by an owner builder at a private residence in Ipswich, Australia. The project applies custom, emergent and established technologies to the management of the owners’ lifestyle preferences and problematic site conditions. It is also an innovative project from the perspective of current governance conditions, making use of previously untried regulatory mechanisms. The project comprises two integrated components: rainwater harvesting and onsite waste treatment, potentially offsetting household reliance on the mains water supply by as much as 90% and offering further beneficial externalities. Rainwater is harvested from a 135m roof catchment through a conveyance system that includes leaf diverters and screens, though no first flush diverter, to a 15kL PE storage tank.

 

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An Overview of Arsenic Removal Technologies in Bangladesh and India

In the context of prevalence of high concentrations of arsenic in tubewell water,a wide range technologies has been tried for the removal of arsenic fromdrinking water. The most common technologies utilized the conventionalprocesses of oxidation, co-precipitation and adsorption onto coagulated flocs,adsorption onto sorptive media, ion exchange and membrane techniques forarsenic removal.

 

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Bagging Industrial Drains:A Solid Media Survey of Stormwater Contamination

Conventional approaches to stormwater quality evaluation combine continuous flow rate monitoring and automated sample collection for chemical analysis to derive an event mean concentration for each pollutant of concern. This approach requires expensive flow monitoring and automated sample collection equipment and the costly analysis of high numbers of water samples.

 

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Bangladesh – from a country of flood to a country of water scarcity – sustainable perspectives for solution

Quite often Bangladesh is portrayed as a water abundant country, which does not give the full picture of her water problems. Due to the temporal distribution of water resources, water problems of Bangladesh fall within two extremes. At one extreme is the monsoon period between June to October when the country becomes flooded due to high flows in the transboundary rivers and heavy rainfall within the country. At the other extreme is the dry season between December to May when the country become severely water stressed due to low water availability, unsustainable upstream water withdrawal and low quality of groundwater.

 

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BEST PRACTICE FOR MODELLING SUSTAINABLE URBAN DRAINAGE SYSTEM STRUCTURES

Sustainable Urban Drainage Systems (SUDS) design has traditionally been simplistic, using basic equations and “rules of thumb” often leading to conservative designs. Now with plenty of information available advising planners about the different types of SUDS structures available it is often left to engineers to build or develop hydraulic models to quantify how these structures will operate for a range of operating conditions.

 

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