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The influence of metal source uncertainty on cost-effective allocation of mine water pollution abatement in catchments
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering.
KTH, School of Architecture and the Built Environment (ABE), Land and Water Resources Engineering.
2006 (English)In: Journal of Environmental Management, ISSN 0301-4797, E-ISSN 1095-8630, Vol. 78, no 2, 138-148 p.Article in journal (Refereed) Published
Abstract [en]

In mine water pollution abatement, it is commonly assumed that known mine waste sites are the major pollution sources, thus neglecting the possibility of significant contribution from other old and diffuse sources within a catchment. We investigate the influence of different types of pollution source uncertainty on cost-effective allocation of abatement measures for mine water pollution. A catchment-scale cost-minimization model is developed and applied to the catchment of the river Dalalven, Sweden, in order to exemplify important effects of such source uncertainty. Results indicate that, if the pollution distribution between point and diffuse sources is partly unknown, downstream abatement measures, such as constructed wetlands, at given compliance boundaries are often cost-effective. If downstream abatement measures are not practically feasible, the pollution source distribution between point and diffuse mine water sources is critical for cost-effective solutions to abatement measure allocation in catchments. In contrast, cost-effective solutions are relatively insensitive to uncertainty in total pollutant discharge from mine water sources.

Place, publisher, year, edition, pages
2006. Vol. 78, no 2, 138-148 p.
Keyword [en]
cost effectiveness; mine water; pollution abatement; heavy metals
National Category
Water Engineering
Identifiers
URN: urn:nbn:se:kth:diva-7184DOI: 10.1016/j.jenvman.2005.03.013ISI: 000235053300004Scopus ID: 2-s2.0-30944432099OAI: oai:DiVA.org:kth-7184DiVA: diva2:12117
Note
QC 20100623Available from: 2007-05-28 Created: 2007-05-28 Last updated: 2017-12-14Bibliographically approved
In thesis
1. Environmental management of water systems under uncertainty
Open this publication in new window or tab >>Environmental management of water systems under uncertainty
2007 (English)Doctoral thesis, comprehensive summary (Other scientific)
Abstract [en]

Hydrological drainage/river basins constitute highly heterogeneous systems of coupled natural and anthropogenic water and pollutant flows across political, national and international boundaries. These flows need to be appropriately understood, quantified and communicated to stakeholders, in order to appropriately guide environmental water system management. In this thesis, various uncertainties about water and pollutant flows in drainage/river basins and their implications for effective and efficient water pollution abatement are investigated, in particular for mine-related heavy metal loadings in the Swedish Dalälven River basin and for nitrogen loadings in the Swedish Norrström drainage basin. Economic cost-minimization modeling is used to investigate the implications of pollutant load uncertainties for the cost-efficiency of catchment-scale abatement of water pollution.

Results indicate that effective and efficient pollution abatement requires explicit consideration of uncertainties about pollution sources, diffuse contributions of the subsurface water system to downstream pollutant observations in surface waters, and downstream effects of different possible measures to reduce water pollution. In many cases, downstream load abatement measures must be used, in addition to source abatement, in order to reduce not only expected, but also uncertainties around expected pollutant loads. Effective and efficient environmental management of water systems must generally also consider the entire catchments of these systems, rather than focusing only on discrete pollutant sources. The thesis presents some relatively simple, catchment-scale pollutant flow analysis tools that may be used to decrease uncertainties about unmonitored water and pollutant flows and subsurface pollutant accumulation-depletion and diffuse loading to downstream waters.

Place, publisher, year, edition, pages
Stockholm: Mark- och vattenteknik, 2007
Series
Trita-LWR. PHD, ISSN 1650-8602 ; 1034
Keyword
Water Resources Engineering
National Category
Water Engineering
Identifiers
urn:nbn:se:kth:diva-4396 (URN)978-91-7178-670-8 (ISBN)
Public defence
2007-06-07, D2, Lindstedtsvägen 5, KTH, 10:00
Opponent
Supervisors
Available from: 2007-05-28 Created: 2007-05-28 Last updated: 2012-03-19Bibliographically approved

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