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The transfer, storage and release of water colour in a reservoired catchment

Pattinson, Victoria A. (1994) The transfer, storage and release of water colour in a reservoired catchment. Doctoral thesis, University of Huddersfield.

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    In recent years discoloured water has become a matter of
    growing concern to water resource managers. Discoloured
    water is a major source of consumer complaints and is
    expensive in capital and recurrent costs. The treatment of
    water discolouration is believed to be associated with a
    number of health issues, such as Alzheimer's disease. In
    particular, discoloured water, upon chlorination, is
    believed to produce carcinogens.

    The principal aim of this research has been to consider and
    manage water colour within an entire reservoir catchment
    system; Thornton Moor Reservoir, the study area, has
    experienced some of the highest values of colour in the
    Yorkshire Water Region, and has been an area of significant
    concern and cost to Yorkshire Water Services.

    Apparently homogenous subcatchments can produce marked
    differences in the colour of runoff data. This research
    has involved an investigation into the relationship between
    the subcatchment tributary water colour and catchment
    morphology. The relationships established were used to
    generate a predictive model for water colour such that
    areas of high water colour could be identified without
    intensive sampling.

    The initial phase of this study considered the transfer
    network involved in bringing the colour from the catchment
    to the reservoir. This has involved an analysis of the
    spatial and temporal variation of water discolouration
    within the catchment. The consistency of the spatial
    variation of water colour between the tributaries has been
    utilised to develop a management protocol which is
    presently being implemented at Thornton Moor in order to
    minimise the level of discolouration, whilst maintaining
    water supplies.

    Edwards (1987), describes the reservoir as the second line
    of defence in the protection of water supplies in direct
    supply reservoirs. No research to date has considered the
    role of the reservoir in the storage, transmission and
    release of discoloured water. Empirical evidence at
    Thornton Moor Reservoir suggests that for the majority of
    the year, the reservoir operates as a buffer to colour;
    however at certain times of the year it appears actively to
    increase the colour entering the treatment works.

    In considering the entire catchment system, it has been
    possible to develop a transferable staged approach to
    catchment management.

    Item Type: Thesis (Doctoral)
    Additional Information: EThOS Persistent ID
    Uncontrolled Keywords: Civil engineering, Water, Pollution, Water Pollution, Sewage
    Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
    T Technology > TD Environmental technology. Sanitary engineering
    Schools: School of Applied Sciences
    Depositing User: Graham Stone
    Date Deposited: 11 Jun 2009 12:05
    Last Modified: 28 Jul 2010 19:38


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