Pilot-scale Studies of Different Covers on Unoxidised Sulphide-rich tailings, Northern Sweden: Oxygen Diffusion

The efficiency of five cover systems to decrease oxygen intrusion into sulphide-rich tailings was studied in pilot-scale test cells (5x5x3 m3). The covers consisted of clayey till, sewage sludge, fine-grained apatite concentrate or Trisoplast (a mixture of a polymer, bentonite and tailings sand) as...

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Bibliographic Details
Main Authors: Lena Alakangas, Angela Lundberg, Björn Öhl
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Key words
dry cover
oxygen diffusion
sulphide oxidation
mining wastes
remediation
Northern Sweden
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.601.9431
http://www.imwa.info/docs/imwa_2008/IMWA2008_023_Alakangas.pdf
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spelling ftciteseerx:oai:CiteSeerX.psu:10.1.1.601.9431 2023-05-15T17:44:29+02:00 Pilot-scale Studies of Different Covers on Unoxidised Sulphide-rich tailings, Northern Sweden: Oxygen Diffusion Lena Alakangas Angela Lundberg Björn Öhl The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.601.9431 http://www.imwa.info/docs/imwa_2008/IMWA2008_023_Alakangas.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.601.9431 http://www.imwa.info/docs/imwa_2008/IMWA2008_023_Alakangas.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.imwa.info/docs/imwa_2008/IMWA2008_023_Alakangas.pdf Key words dry cover oxygen diffusion sulphide oxidation mining wastes remediation text ftciteseerx 2016-01-08T14:04:51Z The efficiency of five cover systems to decrease oxygen intrusion into sulphide-rich tailings was studied in pilot-scale test cells (5x5x3 m3). The covers consisted of clayey till, sewage sludge, fine-grained apatite concentrate or Trisoplast (a mixture of a polymer, bentonite and tailings sand) as sealing layers and unspecified till as protective cover. In one reference cell, tailings were uncovered. Oxygen concentrations below the entire covers were highest below the Trisoplast and apatite layers, and lowest below the sewage sludge layer. Effective diffusion coefficients (Deff) and oxygen fluxes were estimated in the covers with non-oxygen-consuming sealing Text Northern Sweden Unknown
institution Open Polar
collection Unknown
op_collection_id ftciteseerx
language English
topic Key words
dry cover
oxygen diffusion
sulphide oxidation
mining wastes
remediation
spellingShingle Key words
dry cover
oxygen diffusion
sulphide oxidation
mining wastes
remediation
Lena Alakangas
Angela Lundberg
Björn Öhl
Pilot-scale Studies of Different Covers on Unoxidised Sulphide-rich tailings, Northern Sweden: Oxygen Diffusion
topic_facet Key words
dry cover
oxygen diffusion
sulphide oxidation
mining wastes
remediation
description The efficiency of five cover systems to decrease oxygen intrusion into sulphide-rich tailings was studied in pilot-scale test cells (5x5x3 m3). The covers consisted of clayey till, sewage sludge, fine-grained apatite concentrate or Trisoplast (a mixture of a polymer, bentonite and tailings sand) as sealing layers and unspecified till as protective cover. In one reference cell, tailings were uncovered. Oxygen concentrations below the entire covers were highest below the Trisoplast and apatite layers, and lowest below the sewage sludge layer. Effective diffusion coefficients (Deff) and oxygen fluxes were estimated in the covers with non-oxygen-consuming sealing
author2 The Pennsylvania State University CiteSeerX Archives
format Text
author Lena Alakangas
Angela Lundberg
Björn Öhl
author_facet Lena Alakangas
Angela Lundberg
Björn Öhl
author_sort Lena Alakangas
title Pilot-scale Studies of Different Covers on Unoxidised Sulphide-rich tailings, Northern Sweden: Oxygen Diffusion
title_short Pilot-scale Studies of Different Covers on Unoxidised Sulphide-rich tailings, Northern Sweden: Oxygen Diffusion
title_full Pilot-scale Studies of Different Covers on Unoxidised Sulphide-rich tailings, Northern Sweden: Oxygen Diffusion
title_fullStr Pilot-scale Studies of Different Covers on Unoxidised Sulphide-rich tailings, Northern Sweden: Oxygen Diffusion
title_full_unstemmed Pilot-scale Studies of Different Covers on Unoxidised Sulphide-rich tailings, Northern Sweden: Oxygen Diffusion
title_sort pilot-scale studies of different covers on unoxidised sulphide-rich tailings, northern sweden: oxygen diffusion
url http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.601.9431
http://www.imwa.info/docs/imwa_2008/IMWA2008_023_Alakangas.pdf
genre Northern Sweden
genre_facet Northern Sweden
op_source http://www.imwa.info/docs/imwa_2008/IMWA2008_023_Alakangas.pdf
op_relation http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.601.9431
http://www.imwa.info/docs/imwa_2008/IMWA2008_023_Alakangas.pdf
op_rights Metadata may be used without restrictions as long as the oai identifier remains attached to it.
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