oru.sePublikationer
Change search
CiteExportLink to record
Permanent link

Direct link
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
Neutralisation of an acidic pit lake by alkaline waste products
Örebro University, School of Science and Technology, Örebro University, Sweden. (MTM Biogeosphere Dynamics)ORCID iD: 0000-0002-2104-4593
Örebro University, School of Science and Technology, Örebro University, Sweden. (MTM Biogeosphere Dynamics)ORCID iD: 0000-0002-2674-4994
Örebro University, School of Science and Technology, Örebro University, Sweden. (MTM Biogeosphere Dynamics)
Institute of Geoscience, Friedrich Schiller University, Jena, Germany .
2014 (English)In: Environmental science and pollution research international, ISSN 0944-1344, E-ISSN 1614-7499, Vol. 21, no 11, 6930-6938 p.Article in journal (Refereed) Published
Abstract [en]

A former open pit where black shale (alum shale) was excavated during 1942-1965 has been water filled since 1966. The water chemistry was dominated by calcium and sulphate and had a pH of 3.2-3.4 until 1997-1998, when pH was gradually increasing. This was due to the intrusion of leachates from alkaline cement waste deposited close to the lake. A stable pH of around 7.5 was obtained after 6-7 years. The chemistry of the pit lake has changed due to the neutralisation. Concentrations of some dissolved metals, notably zinc and nickel, have gone down, as a result of adsorption/co-precipitation on solid phases (most likely iron and aluminium hydroxides), while other metals, notably uranium and molybdenum, are present at elevated levels. Uranium concentration is reaching a minimum of around pH 6.5 and is increasing at higher pH, which may indicate a formation of neutral and anionic uranyl carbonate species at high pH (and total carbonate levels around 1 mM). Weathering of the water-exposed shale is still in progress.

Place, publisher, year, edition, pages
2014. Vol. 21, no 11, 6930-6938 p.
Keyword [en]
Alum shale; Black shale; Liming; Neutralisation; Pit lake
National Category
Earth and Related Environmental Sciences
Research subject
Enviromental Science
Identifiers
URN: urn:nbn:se:oru:diva-40744DOI: 10.1007/s11356-014-2600-xISI: 000336371000015PubMedID: 23913161Scopus ID: 2-s2.0-84901276811OAI: oai:DiVA.org:oru-40744DiVA: diva2:778582
Available from: 2015-01-11 Created: 2015-01-11 Last updated: 2016-12-13Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textPubMedScopus

Search in DiVA

By author/editor
Allard, BertBäckström, MattiasKarlsson, Stefan
By organisation
School of Science and Technology, Örebro University, Sweden
In the same journal
Environmental science and pollution research international
Earth and Related Environmental Sciences

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 360 hits
CiteExportLink to record
Permanent link

Direct link
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