XML FeedsPotential for rainwater use in high-rise buildings in Australian cities
By CostBenefit on Oct 27, 2009 | In Water, Land + Water, Green Buildings, Real Estate Construction Housing, Academic Study/Journal Article, Green Roofs, Australia, New Zealand, Costs and Benefits, Wastewater | Send feedback »
Abstract: Rainwater is a traditional but underutilized water resource that has today had a resurgence due to the worldwide water crisis. This paper demonstrates the outcomes of research on the feasibility of rainwater use in high-rise residential envelopes for four Australian cities of Melbourne, Sydney, Perth and Darwin. Different climate patterns and various levels of water demand management were established for determination of storage dimensions; annual tank water use; reduction in both imported water flow and stormwater disposal; and water spillage from tanks. High level water demand management was a profoundly effective tool for reducing potable water supply, especially in combination with rainwater use. The economic feasibility of rainwater use systems were estimated; with Sydney having the shortest payback period compared to other cities either both with 3A rated appliances (8.6 years) or 5A ones installed (10.4 years). That was due to the higher and more consistent rainfall in Sydney. An outcome of this study was that Sydney was likely most suited to rainwater use, followed by Perth, Darwin, and then Melbourne. The objective of this study was to fill in the gap in estimating feasibility of rainwater use in various Australian cities. This investigation endeavors to provide assistance to water authorities and urban planners of Australian cities with the consideration of the potential of rainwater harvesting.
by Yan Zhang 1 and 2, Donghui Chen 3, Liang Chen 2 and Stephanie Ashbolt 4
1. College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266510, China
2. College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
3. Shanghai Institute of Technology, Shanghai 200235, China
4. Land and Water, Commonwealth Scientific and Industrial Research Organization (CSIRO), Victoria 3190, Australia
Journal of Environmental Management via Elsevier Science Direct www.ScienceDirect.com
Volume 91, Issue 1; October, 2009; pages 222-226
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