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The feasibility of rainwater and stormwater harvesting within a winter rainfall climate context: a commercial building focus

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dc.contributor.advisor Hendrick, R. M. (Prof.)
dc.contributor.advisor Taylor, M. P. (Ms.)
dc.contributor.author Viljoen, Nina Susara
dc.date.accessioned 2014-11-18T10:20:57Z
dc.date.available 2014-11-18T10:20:57Z
dc.date.issued 2014-02
dc.date.submitted 2014-11-18
dc.identifier.citation Viljoen, Nina Susara (2014) The feasibility of rainwater and stormwater harvesting within a winter rainfall climate context: a commercial building focus, University of South Africa, Pretoria, <http://hdl.handle.net/10500/14391> en
dc.identifier.uri http://hdl.handle.net/10500/14391
dc.description.abstract Cape Town, South Africa, falls within a winter rainfall region, making it difficult to assess the feasibility of rain- and stormwater harvesting. The reason for this is because the region’s high water demand period coincides with the low rainfall summer season, thereby limiting the availability of this alternative water resource when most needed. During this study, rainwater harvesting for toilet flushing purposes, collected from roof surfaces, was practically assessed by means of inserted flow meters at a pilot study site in Kommetjie, Cape Town. The combined and single system roof- and land surface runoff yields and savings of commercial buildings within the Kommetjie business area, were also theoretically assessed by making use of a mathematical roof- and land surface runoff model specifically developed during this study. The statistical testing of the hypotheses statements relating to the pre- and post-harvesting savings at the pilot study building, compared against the average actual municipal water usage, were performed. Hypotheses testing were also performed in order to compare the theoretical rain- and stormwater runoff yields for the commercial business area against the average actual municipal water consumption. The conclusions drawn from this study indicated that valuable potable water, as well as related financial savings, can be achieved within a winter rainfall region, thereby making rain- and stormwater harvesting a feasible option for commercial businesses in Cape Town. en
dc.format.extent 1 online resource (136 leaves) : ill. en
dc.language.iso en en
dc.subject Below-surface reservoir en
dc.subject Catchment surface en
dc.subject Collection tank en
dc.subject Electronic rain gauge en
dc.subject Garden irrigation en
dc.subject Measurement en
dc.subject Non-potable uses en
dc.subject Potable top-up system en
dc.subject Rainwater harvesting en
dc.subject Runoff model en
dc.subject Stormwater channelling en
dc.subject Stormwater harvesting en
dc.subject Stormwater runoff en
dc.subject Toilet demand en
dc.subject Toilet flushing en
dc.subject.ddc 333.91230968735
dc.subject.lcsh Water harvesting -- South Africa -- Kommetjie (Western Cape) en
dc.subject.lcsh Industrial water supply -- South Africa -- Kommetjie (Western Cape) en
dc.subject.lcsh Rainwater -- South Africa -- Kommetjie (Western Cape) en
dc.subject.lcsh Storm water retention basins -- South Africa -- Kommetjie (Western Cape) en
dc.subject.lcsh Urban runoff -- South Africa -- Kommetjie (Western Cape) en
dc.subject.lcsh Water reuse -- South Africa -- Kommetjie (Western Cape) en
dc.title The feasibility of rainwater and stormwater harvesting within a winter rainfall climate context: a commercial building focus en
dc.type Dissertation en
dc.description.department Environmental Sciences en
dc.description.degree M.Sc. (Environmental Management) en


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