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Environmental impacts of mining in a European context: monitoring of bioavailable trace metals with diffusional gradients in thin films (DGT), in a former mining area in Hungary
2003 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Mining has during a long period of time been, and will continue to be, very important for the structure of our society. Material originating from mining pervades our daily life, and is used in everything from water pipes to computers. However, on the downside mining has become a substational contributor of pollution. This report concentrates on how such pollution can be monitored. New technology makes it possible to monitor smaller and smaller fractions of metals in situ. The DGT (diffusional gradients in thin films) sampler measures the diffusable phase instead of total concentrations. By using the DGT sampler, monitoring of bioavailable trace metals were preformed in Gyöngyösoroszi, a closed mining area in northern Hungary. The method using the DGT sampler is not yet fully established and this report will hopefully be of interest for forthcoming research. The largest difficulties seems to occur when trace metals were monitored in untreated mine water with very high concentrations of metals. Despite the problems experienced, the DGT sampler promises to be an excellent tool for measuring the diffusable part of metals in natural water. Trace metals evaluated with the DGT sampler in this report are Cd, Co, Cu, Fe, Mn, Ni, Pb and Zn. Parallel to the monitoring with the DGT sampler, traditional water samples were collected and evaluated on major and trace elements in both total concentrations and the phase smaller than 0,2 μm. The measurements collected with the DGT sampler and the traditional samples indicates that the remediation plant at Gyöngyösoroszi, which adds burnt lime and oxygen to the mine water, strongly reduces the concentrations of Fe ad Al in the water. The concentrations of Cd, Co, Mn, Ni, Pb and Zn, also decreases in concentration probably due to sorbtion to the oxide hydroxides precipitated in the tailing lagoons following the remediation plant.

Place, publisher, year, edition, pages
2003.
Keyword [en]
Technology, water monitoring, DGT, diffusional gradients in thin films, bioavailable, trace metals, Gyöngyösoroszi
Keyword [sv]
Teknik
Identifiers
URN: urn:nbn:se:ltu:diva-55328ISRN: LTU-EX--03/142--SELocal ID: c35892c5-746d-405b-bb13-a5566667ea5bOAI: oai:DiVA.org:ltu-55328DiVA: diva2:1028710
Subject / course
Student thesis, at least 30 credits
Educational program
Environmental Engineering, 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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Cite
Citation style
  • apa
  • harvard1
  • 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