oru.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
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
Alkaline by-products as amendments for stabilization and neutralization of oxidized sulphidic mine waste deposits
Örebro University, School of Science and Technology. Bergskraft Bergslagen AB, Kopparberg, Sweden.ORCID iD: 0000-0001-9348-6481
Örebro University, School of Science and Technology. (Forskningscentrum Människa-Teknik-Miljö)ORCID iD: 0000-0002-2674-4994
Örebro University, School of Science and Technology. (Forskningscentrum Människa-Teknik-Miljö)
2010 (English)In: 34th British Columbia Mine Reclamation & 35th CLRA/ACRSD National Conference, 2010, p. 10 pages-Conference paper, Published paper (Refereed)
Abstract [en]

Stabilization of oxidized sulphidic mine waste deposits with alkaline by-products could be a way of controlling ARD. Mixtures of alkaline by-products (10% by volume) and oxidized waste rock have been studied during six months in 30 L experimental drums. Alkaline by-products are: lime mud (LM), green liquor dreg (GLD), lime kiln dust (LKD), LD slag (LD), water work granules (WWG), carbonized fly ash (FAE) and fresh fly ash (FAF). The experiments are fed with water once a week to imitate natural precipitation.

pH of the reference (no alkaline amendment) is below 3 and trace metal concentrations are 2000 mg/l, 4 mg/l and 1 mg/l for Zn, Cd and Pb respectively. LKD, LM and LD amended systems (pH 6.7-7.5) are the most efficient for Cd- and Zn-removal (reduction at least 99 % compared to the reference), while GLD (tap pH 6.5) is the most efficient for Pb-removal (99 % reduction compared to the reference). FAE amended system only reaches pH around 5 and accordingly trace metal reduction is rather low. Geochemical simulations using PHREEQC indicate equilibrium with otavite and smithsonite in the WWG and GLD systems, whereas cerrusite is at equilibrium in the LKD, WWG and GLD systems.

Place, publisher, year, edition, pages
2010. p. 10 pages-
Keywords [en]
Fly ash, lime mud, green liquor dreg, lim e kiln dust, water work granules, LD slag
National Category
Geochemistry
Research subject
Environmental Chemistry
Identifiers
URN: urn:nbn:se:oru:diva-30872OAI: oai:DiVA.org:oru-30872DiVA, id: diva2:649569
Conference
34th British Columbia Mine Reclamation & 35th CLRA/ACRSD National Conference, Vancouver, Canada
Available from: 2013-09-19 Created: 2013-09-19 Last updated: 2019-03-26Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

PDF

Authority records BETA

Sartz, LottaBäckström, MattiasKarlsson, Stefan

Search in DiVA

By author/editor
Sartz, LottaBäckström, MattiasKarlsson, Stefan
By organisation
School of Science and Technology
Geochemistry

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 451 hits
CiteExportLink to record
Permanent link

Direct link
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