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

Scholz, M ORCID: 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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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: Schools > School of Computing, Science and Engineering
Schools > School of Science, Engineering and Environment > Salford Innovation Research Centre (SIRC)
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 10:31
Last Modified: 13 Mar 2019 08:31

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