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Grundvatten i Aitiks gruvområde: En utvärdering av grundvattenkvalitet och provtagningspunkter
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
2019 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Groundwater in Aitik mining area : An evaluation of groundwater quality and sampling points (English)
Abstract [en]

The aim of this study was to evaluate the quality of the groundwater around the Aitik copper mine- one of Europe’s largest copper mine located 15 km outside of Gällivare, Sweden - as well the placement of the groundwater pipes around the area. The study also included a survey of what kind of terms, regarding groundwater that may become relevant in the future for an activity of Aitik’s size and type. Monitoring data was analysed between the years 2014 – 2018 for the parameters; pH, SO4, Cd, Co, Cu, Zn, Ni and U. The correlation between the parameters where tested and the monitoring data where compared to the Swedish Environmental Protection Agency criteria for groundwater as well to the groundwater chemistry from a reference area nearby, Liikavaara Östra. The result of the study shows that low pH raises the mobility of the metals Cd, Co, Cu, Zn and Ni. The result also indicates that SO4, Ni and Co are higher than the reference area but that the groundwater overall shows small signs of being affected by sulphide weathering. Therefore, metals can’t be excluded from originating from high background contents. The geographic analyse shows that the groundwater pipes are well placed in compared with the water flow direction and that two of the pipes can be excluded from sampling. Future terms regarding groundwater will likely regard protective measures and quantity restrictions. Still monitoring groundwater quality is very important to control environmental impact of the activity and to prevent deterioration of quality in the future.

Place, publisher, year, edition, pages
2019. , p. 21
Keywords [en]
Groundwater, Copper mine, Sulphide oxidation, Groundwater management, Mine-water chemistry
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:umu:diva-157810OAI: oai:DiVA.org:umu-157810DiVA, id: diva2:1301807
External cooperation
Boliden Aitik
Educational program
Bachelor of Science in Environmental Health
Available from: 2019-04-08 Created: 2019-04-03 Last updated: 2019-04-08Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf