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British Columbia Mine Reclamation Symposium
The biogeochemistry of selenium in the US western phosphate resource area : sources, pathways, receptors and controls Munkers, Jon; Bond, Melanie; Brackney, Kevin; Moller, Gregory
Abstract
Selenium, a sulfur analogue, is often mobilized in mining impacted areas. Oxidation of the reduced forms of this metalloid can allow release into the local ecosystem with the potential for toxic impact. A large body of work in the scientific literature has documented the food chain effects of mobilized Se in certain types of aquatic environments, with endpoints that include reproductive failure in biological communities. This work explores the biogeochemical cycling and controls of Se in mining effected environments focusing on the Western US Phosphate Resource Area in Idaho. Unique in its terrestrial environment, this large-scale active and historical mining area is currently the focus of a study of selenium reaction pathways, environmental impacts and natural or accelerated controls. We have found chemical and microbial pathways are active in the Se cycle in both areas, however the regio-specific geochemistry, temperature, hydrograph and engineering operations dominate the local release and control dynamics. This work examines natural and "green" engineered Se control approaches explored in field and laboratory trials associated with this mining area.
Item Metadata
Title |
The biogeochemistry of selenium in the US western phosphate resource area : sources, pathways, receptors and controls
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Creator | |
Contributor | |
Date Issued |
2000
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Description |
Selenium, a sulfur analogue, is often mobilized in mining impacted areas. Oxidation of the reduced forms
of this metalloid can allow release into the local ecosystem with the potential for toxic impact. A large
body of work in the scientific literature has documented the food chain effects of mobilized Se in certain
types of aquatic environments, with endpoints that include reproductive failure in biological communities.
This work explores the biogeochemical cycling and controls of Se in mining effected environments
focusing on the Western US Phosphate Resource Area in Idaho. Unique in its terrestrial environment,
this large-scale active and historical mining area is currently the focus of a study of selenium reaction
pathways, environmental impacts and natural or accelerated controls. We have found chemical and
microbial pathways are active in the Se cycle in both areas, however the regio-specific geochemistry,
temperature, hydrograph and engineering operations dominate the local release and control dynamics.
This work examines natural and "green" engineered Se control approaches explored in field and laboratory trials associated with this mining area.
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Extent |
790583 bytes
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Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2009-06-23
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Provider |
Vancouver : University of British Columbia Library
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Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI |
10.14288/1.0042357
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URI | |
Affiliation | |
Peer Review Status |
Unreviewed
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Scholarly Level |
Other
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Copyright Holder |
British Columbia Technical and Research Committee on Reclamation
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Rights URI | |
Aggregated Source Repository |
DSpace
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Rights
Attribution-NonCommercial-NoDerivatives 4.0 International