A physical and chemical quality comparison of rainwater harvested, stored in an exposed and unexposed tank to evaluate it's contaminate over time

O'Shaughnessy, Ayo (2015) A physical and chemical quality comparison of rainwater harvested, stored in an exposed and unexposed tank to evaluate it's contaminate over time. MEng dissertation, University of Portsmouth.

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    Abstract

    The UK population is very much dependant on mains water for drinking, bathing and other domestic uses. This continuous lifestyle has the potential to a put strain on mains water systems and the environment. Future plans have to be implemented to tackle this issue by finding another source of water which can replace some main water applications and relive the strain on main water systems and the environment. Rainwater water harvesting is thought to be one of the solutions to this issue.
    The purpose of this report is to examine and evaluate the change in the quality of rainwater once collected and stored in an exposed and unexposed tank, to ascertain their impacts on harvesting rainwater over time and at different depths.
    In this research study, samples were extracted from exposed and unexposed tanks to provide background information on the water quality and the parameters relevant for rainwater harvested. This procedure aided in formulating a rainwater experiment which provided context for the results.
    Five common water quality parameter tests were carried out, as follows:
     -pH
     -Turbidity
     -Conductivity
     -Total coliforms
     -Faecal coliforms
    The above tests investigate the change in water quality over a period of time and at different depths within each tank. The results obtained was then compared to each other to see how they differ and compared to drinking water standards set by the World Health Organisation (WHO) and the European and National Drinking Water Standards to see if it has the potential to replace some main water applications.
    Overall there were no major difference between both tanks and most of water quality parameters met WHO and European and National drinking water standards.

    Item Type: Dissertation
    Departments/Research Groups: Faculty of Technology > School of Civil Engineering and Surveying
    Depositing User: Jane Polwin
    Date Deposited: 21 Oct 2015 14:57
    Last Modified: 21 Oct 2015 14:57
    URI: http://eprints.port.ac.uk/id/eprint/18572

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