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Treatment of gully pot effluent containing nickel and copper with constructed wetlands in a cold climate

Scholz, M 2004, 'Treatment of gully pot effluent containing nickel and copper with constructed wetlands in a cold climate' , Journal of Chemical Technology and Biotechnology, 79 (2) , pp. 153-162.

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    Abstract

    The aim of this study was to assess the treatment efficiencies for gully pot effluent of experimental vertical-flow constructed wetland filters containing macrophytes and granular media of different adsorption capacities in a cold climate. For approximately 6 months, nickel nitrate and copper nitrate were added to sieved gully pot effluent in order to simulate contaminated primary treated stormwater runoff. The inflow concentrations for nickel, copper and nitrate were approximately 1.0, 1.0 and 3.7 mg dm−3, respectively. For those filters receiving metals, an obvious breakthrough of nickel was recorded after road gritting (containing salt). Reductions of nickel, copper, biochemical oxygen demand and suspended solids were frequently insufficient compared with international secondary wastewater treatment standards (eg suspended solids <30 mg dm−3). A further treatment step should be considered. Outflow conductivity and nickel concentrations were high due to the effect of road salting. Microbial activity was likely to be responsible for the overall filtration performance.

    Item Type: Article
    Uncontrolled Keywords: Common reed, constructed wetlands, copper, gully pot effluent, nickel, road salting
    Themes: Built and Human Environment
    Schools: Colleges and Schools > College of Science & Technology
    Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering
    Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Civil Engineering Research Centre
    Journal or Publication Title: Journal of Chemical Technology and Biotechnology
    Publisher: Wiley-Blackwell
    Refereed: Yes
    ISSN: 0268-2575
    Depositing User: Users 47901 not found.
    Date Deposited: 27 Jun 2011 11:31
    Last Modified: 20 Aug 2013 17:59
    URI: http://usir.salford.ac.uk/id/eprint/16521

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