Treatment of gully pot liquor containing heavy metals with constructed wetlands in Scotland

Scholz, M ORCID:, Anderson, P and Forman, BI 2005, 'Treatment of gully pot liquor containing heavy metals with constructed wetlands in Scotland' , Water Science and Technology, 51 (9) , pp. 251-258.

Full text not available from this repository. (Request a copy)


The aim of this investigation was to assess the treatment efficiencies for gully pot liquor of 12 experimental vertical-flow constructed wetland filters containing Phragmites australis (Cav.) Trin. ex Steud. (Common Reed) and filter media of different adsorption capacities in a cold climate. Seven of the twelve filters received inflow water spiked with heavy metals. For one year, hydrated copper nitrate and hydrated nickel nitrate were added to sieved gully pot liquor to simulate contaminated primary treated storm water runoff. The inflow concentrations for dissolved copper, nickel and nitrate-nitrogen were approximately 1.0, 1.0 and 1.45 mg/l, respectively, which represent mean loading rates of 0.063 g/m2/d for Filters 2 and 7 to 11, and 0.115 g/m2/d for Filter 12. For these filters receiving metals, an obvious breakthrough of dissolved nickel was recorded after road gritting and salting during winter. Sodium chloride was responsible for nickel leaching. Reductions of copper, nickel, biochemical oxygen demand and suspended solids were frequently insufficient compared to international secondary wastewater treatment standards. Moreover, the overall filtration performance for all filters was similar. Keywords Constructed wetland; copper; gully pot liquor; nickel; road gritting and salting; water quality

Item Type: Article
Themes: Subjects outside of the University Themes
Schools: Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre
Journal or Publication Title: Water Science and Technology
Publisher: IWA Publishing
Refereed: Yes
ISSN: 0273-1223
Depositing User: Users 29196 not found.
Date Deposited: 31 May 2012 11:20
Last Modified: 27 Aug 2021 20:04

Actions (login required)

Edit record (repository staff only) Edit record (repository staff only)