Development of a wetland treatment system at United Keno Hill Mines, Eisa, Yukon Territory ...
An adit on the United Keno Hill property discharges water at 1-10 L/sec with 20-30 mg/L (ppm) zinc. This paper describes how a wetland treatment system was developed to passively treat this discharge. Adit water was supplied to a 180 m² pilot-scale wetland at a rate of 18 L/min. The wetland reduced...
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ftdatacite:10.14288/1.0042298 2024-04-28T08:27:11+00:00 Development of a wetland treatment system at United Keno Hill Mines, Eisa, Yukon Territory ... Sobolewski, André 2009 https://dx.doi.org/10.14288/1.0042298 https://doi.library.ubc.ca/10.14288/1.0042298 en eng The University of British Columbia article-journal Text ScholarlyArticle 2009 ftdatacite https://doi.org/10.14288/1.0042298 2024-04-02T09:56:45Z An adit on the United Keno Hill property discharges water at 1-10 L/sec with 20-30 mg/L (ppm) zinc. This paper describes how a wetland treatment system was developed to passively treat this discharge. Adit water was supplied to a 180 m² pilot-scale wetland at a rate of 18 L/min. The wetland reduced zinc concentrations from 25 ppm to approximately 3 pprn. However, water in parts of the wetland had 0.3 ppm zinc. Microcosms established within the wetland reduced zinc concentrations to <0.2 ppm. Cobalt, iron, manganese, and nickel were also removed in the wetland and the microcosms. Finally, a natural wetland receiving water with 3 ppm zinc produced a discharge of 0.3 ppm zinc. Taken together, these results suggest that a constructed wetland can, in principle, reduce zinc below the permitted discharge limit of 0.5 ppm. Zinc appeared to be retained in the pilot wetland by reacting with hydrogen sulphide, generated in sediments by sulphate-reducing bacteria. Metals accumulating in natural wetlands receiving ... Text Keno Hill Yukon DataCite Metadata Store (German National Library of Science and Technology) |
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English |
description |
An adit on the United Keno Hill property discharges water at 1-10 L/sec with 20-30 mg/L (ppm) zinc. This paper describes how a wetland treatment system was developed to passively treat this discharge. Adit water was supplied to a 180 m² pilot-scale wetland at a rate of 18 L/min. The wetland reduced zinc concentrations from 25 ppm to approximately 3 pprn. However, water in parts of the wetland had 0.3 ppm zinc. Microcosms established within the wetland reduced zinc concentrations to <0.2 ppm. Cobalt, iron, manganese, and nickel were also removed in the wetland and the microcosms. Finally, a natural wetland receiving water with 3 ppm zinc produced a discharge of 0.3 ppm zinc. Taken together, these results suggest that a constructed wetland can, in principle, reduce zinc below the permitted discharge limit of 0.5 ppm. Zinc appeared to be retained in the pilot wetland by reacting with hydrogen sulphide, generated in sediments by sulphate-reducing bacteria. Metals accumulating in natural wetlands receiving ... |
format |
Text |
author |
Sobolewski, André |
spellingShingle |
Sobolewski, André Development of a wetland treatment system at United Keno Hill Mines, Eisa, Yukon Territory ... |
author_facet |
Sobolewski, André |
author_sort |
Sobolewski, André |
title |
Development of a wetland treatment system at United Keno Hill Mines, Eisa, Yukon Territory ... |
title_short |
Development of a wetland treatment system at United Keno Hill Mines, Eisa, Yukon Territory ... |
title_full |
Development of a wetland treatment system at United Keno Hill Mines, Eisa, Yukon Territory ... |
title_fullStr |
Development of a wetland treatment system at United Keno Hill Mines, Eisa, Yukon Territory ... |
title_full_unstemmed |
Development of a wetland treatment system at United Keno Hill Mines, Eisa, Yukon Territory ... |
title_sort |
development of a wetland treatment system at united keno hill mines, eisa, yukon territory ... |
publisher |
The University of British Columbia |
publishDate |
2009 |
url |
https://dx.doi.org/10.14288/1.0042298 https://doi.library.ubc.ca/10.14288/1.0042298 |
genre |
Keno Hill Yukon |
genre_facet |
Keno Hill Yukon |
op_doi |
https://doi.org/10.14288/1.0042298 |
_version_ |
1797586259319717888 |