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Formation of ferric flocks to remove for the removal of Zn and Cu from dockyard wastewater

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An Erratum to this article was published on 17 January 2007

Abstract

Wastewater from wash down of boat hulls contains typically Cu, Zn and organometallic biocides, e.g. tributyltin (TBT). In some cases this wastewater is led directly into the marine system. In the present paper, a cheap flocculation method (iron flocculants) for removal of Cu and Zn from the wastewater is investigated and the method was shown successful. TBT concentration in a sample from a German dockyard was also decreased during flocculation, but the TBT removed was already associated with small particulates in the original sample. Low concentrations of heavy metals were obtained by flocculation: <0.05 mg Cu/l and 0.2 mg Zn/l.

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Acknowledgements

The project Green North Sea Docks is financed through the EU Interreg IIIB programme and the flocculation experiments were partly financed by Nakskov Kommune, Denmark. Steven Vreysen, KU-Leuven, conducted the organotin analysis.

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Authors and Affiliations

  1. Department of Civil Engineering, Technical University of Denmark, Kemitorvet 204, 2800, Lyngby, Denmark

    Lisbeth M. Ottosen

  2. Technical University of Hamburg-Harburg, Department of Environmental Science and Technology, Eissendorfer Strasse 40, D-21073, Hamburg, Germany

    Eduardo Arevalo & Wolfgang Calmano

  3. School of Engineering (D3), University of Surrey, Guildford, Surrey, GU2 7XH, UK

    Heinz Stichnothe

Authors
  1. Lisbeth M. Ottosen
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  2. Eduardo Arevalo
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  3. Heinz Stichnothe
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  4. Wolfgang Calmano
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Additional information

An erratum to this article can be found at http://dx.doi.org/10.1007/s10311-006-0076-8

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Ottosen, L.M., Arevalo, E., Stichnothe, H. et al. Formation of ferric flocks to remove for the removal of Zn and Cu from dockyard wastewater. Environ Chem Lett 3, 164–168 (2006). https://doi.org/10.1007/s10311-005-0025-y

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  • DOI: https://doi.org/10.1007/s10311-005-0025-y

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