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Comparison of pollutant emission control strategies for cadmium and mercury in urban water systems using substance flow analysis
Middlesex University, UK.
Middlesex University, UK.
Technical University of Denmark, Denmark.ORCID iD: 0000-0002-5472-8553
Middlesex University, UK.
2013 (English)In: Journal of Environmental Management, ISSN 0301-4797, E-ISSN 1095-8630, Vol. 116, 172-180 p.Article in journal (Refereed) Published
Abstract [en]

The European Union (EU) Water Framework Directive (WFD) requires Member States to protect inland surface and groundwater bodies but does not directly stipulate how the associated environmental quality standards should be achieved. This paper develops and assesses the performance of a series of urban emission control strategies (ECS) with an emphasis on the scientific and technological benefits which can be achieved. Data from the literature, in combination with expert judgement, have been used to develop two different semi-hypothetical case cities (SHCC), which represent virtual platforms for the evaluation of ECS using substance flow analysis (SFA). The results indicate that the full implementation of existing EU legislation is capable of reducing the total emissions of cadmium (Cd) and mercury (Hg) by between 11% and 20%. The ability to apply voluntary reduction practices is shown to be particularly effective for Cd with the potential to further lower the overall emissions by between 16% and 27%. The most efficient protection of the receiving surface water environment is strongly influenced by the city characteristics with the introduction of stormwater treatment practices being particularly effective for one city (59% reduction of Hg; 39% reduction of Cd) and the other city being most influenced by the presence of efficient advanced wastewater treatment processes (63% reduction of Hg; 43% reduction of Cd). These reductions in receiving water loads are necessarily accompanied by either increases in stormwater sediment loadings (2.6–14.9 kg/year or 0.6–2.4 kg/year for Hg) or wastewater sludge loadings (45.8–57.2 kg/year or 42.0–57.4 kg/year for Cd).

Place, publisher, year, edition, pages
2013. Vol. 116, 172-180 p.
Keyword [en]
Priority pollutants, Semi-hypothetical case cities, Substance flow analysis, Cadmium, Mercury
National Category
Environmental Sciences
Research subject
Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:lnu:diva-66656DOI: 10.1016/j.jenvman.2012.12.007OAI: oai:DiVA.org:lnu-66656DiVA: diva2:1120047
Available from: 2017-07-05 Created: 2017-07-05 Last updated: 2017-11-10Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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Language
  • de-DE
  • en-GB
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  • nn-NB
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  • Other locale
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