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Tailings groundwater composition at the Kristineberg mine site, northern Sweden
2007 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The groundwater composition in Impoundment 1 at the Kristineberg mine in northern Sweden was studied. Two types of soil covers have been applied on the impoundment, and data from four groundwater pipes was interpreted (pipe P as reference pipe for pipes L, O, and K). Significant variations in groundwater quality were observed even when the same remediation method was used. Iron, Mn, Al, S and Zn showed concentration maxima suggesting that a wash-out of weathering products occurred as a result of the raised groundwater level in the impoundment. Copper appeared to be secondarily retained in the tailings, possibly due to an increase in pH resulting in sorption and/or co-precipitation of Cu. The general decrease in elemental concentrations with time suggests a decrease of sulphide oxidation and inflow of less contaminated groundwater into the impoundment. The groundwater sampled in till underlying Impoundment 1 is most likely affected by groundwater seepage from the overlying tailings. This is indicated by an increase in the concentration of dissolved organic carbon with time, which is interpreted to be a result of groundwater seepage through a layer of peat underlying the tailings.

Place, publisher, year, edition, pages
2007.
Keyword [en]
Technology
Keyword [sv]
Teknik
Identifiers
URN: urn:nbn:se:ltu:diva-45917ISRN: LTU-PB-EX--07/027--SELocal ID: 38fb9ec3-64ee-4d8c-b40e-28edcc112d8bOAI: oai:DiVA.org:ltu-45917DiVA: diva2:1019218
Subject / course
Student thesis, at least 30 credits
Educational program
Geosciences, master's level
Examiners
Note
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
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  • Other style
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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