The Hydrogeochemistry of a Nickel-Mine Tailings Impoundment—Copper Cliff, Ontario

1997 ◽  
pp. 447-465
Keyword(s):  
Mine Tailings ◽  
Tailings Impoundment

Downhole IP Measurements with a Piezocone at Mine Tailings Impoundment

1997 ◽  
Author(s):  
H. Kristiansen ◽  
R. G. Campanella ◽  
M. P. Davies ◽  
C. Daniel
Keyword(s):  
Mine Tailings ◽  
Tailings Impoundment

Geochemical, mineralogical and microbiological characterization of a sulphide-bearing carbonate-rich gold-mine tailings impoundment, Joutel, Québec

1998 ◽  
Vol 13 (6) ◽  
pp. 687-705 ◽  
Author(s):  
David W. Blowes ◽  
John L. Jambor ◽  
Christine J. Hanton-Fong ◽  
Lyne Lortie ◽  
W.Douglas Gould
Keyword(s):  
Mine Tailings ◽  
Gold Mine ◽  
Tailings Impoundment ◽  
Gold Mine Tailings

Stability Evaluation of Fill Dam in Graphite Mine Tailings Impoundment

2014 ◽  
Vol 1010-1012 ◽  
pp. 288-291
Author(s):  
Shuang Huang ◽  
Jian Ping Chen ◽  
Qing Wang
Keyword(s):  
Mine Tailings ◽  
Structural Features ◽  
Normal Operation ◽  
Stability Evaluation ◽  
Stability Coefficient ◽  
Tailings Impoundment ◽  
The Stability ◽  
Calculating Model

The graphite mine tailings impoundment was detailed investigated, and the structural features of fill dam in the graphite mine tailings impoundment was analyzed. Then the author created the stability calculating model of this fill dam, calculated its stability coefficient, and evaluated its stability. It can be concluded that: the fill dam was stable under the condition of normal operation, and it was unstable under the condition of flood operation and special operation.

scholarly journals Acidity and sulfur oxidation intermediate concentrations controlled by O2-driven partitioning of sulfur oxidizing bacteria in a mine tailings impoundment

2021 ◽  
Author(s):  
Kelly J Whaley-Martin ◽  
Lin-Xing Chen ◽  
Tara Colebrander Nelson ◽  
Jay Gordon ◽  
Rose Kantor ◽  
...  
Keyword(s):  
Mine Tailings ◽  
Niche Partitioning ◽  
Sulfur Oxidation ◽  
Reduced Sulfur Compounds ◽  
Rna Detection ◽  
Anoxic Waters ◽  
Tailings Impoundment ◽  
Global Environmental ◽  
Sulfur Oxidizing ◽  
Sulfur Oxidizing Bacteria

Acidification of freshwater in mining impacted areas is a major global environmental problem catalyzed by sulfur-oxidizing bacteria (SOB). To date, little is known about the active bacteria in mine tailings impoundments and their environmental niches. Here, biological sulfur oxidation was investigated over four years in a mine tailings impoundment, integrating sulfur geochemistry, genome-resolved metagenomics and metatranscriptomics. We demonstrated oxygen driven niche partitioning of SOB and their metabolic pathways that explain acidity generation and thiosulfate persistence. Four chemolithoautotrophic SOB, Halothiobacillus, Thiobacillus, Sulfuricurvum and Sediminibacterium comprised 37% to 73% of the analyzed communities. The impoundment waters alternated between the dominance of Halothiobacillus versus a Thiobacillus, Halothiobacillus, Sulfuricurvum and Sediminibacterium consortia. Halothiobacillus dominance was associated with lower pH values (~4.3), higher [H+]/[SO42-] and lower [S2O32-], collectively indicative of extensive sulfur oxidation. Halothiobacillus, which couple sulfur oxidation via the Sox pathway to aerobic respiration or NO2- reduction, were present throughout the depth profile, yet their expression of sox genes occurred only in upper highly oxygenated waters. Conversely, when consortia of Thiobacillus, Halothiobacillus, Sulfuricurvum and Sediminibacterium dominated, recycling/disproportionating reactions were more prevalent. Thiobacillus, which dominated deeper micro-oxic/anoxic waters, oxidized sulfur primarily through the rDSR pathway, coupled to NO3-/NO2- reduction, resulting in lower [H+]/[SO42-] and higher [S2O32-] relative to upper waters. These field results mirror the Sox/rDSR-geochemical patterns of experimental SOB enrichments and reveal opportunities for biological treatments of recalcitrant reduced sulfur compounds, as well as gene-based monitoring and in situ RNA detection to predict the onset of problematic geochemistry.

scholarly journals Simulation of windblown dust transport from a mine tailings impoundment using a computational fluid dynamics model

2014 ◽  
Vol 14 ◽  
pp. 75-83 ◽  
Author(s):  
Michael Stovern ◽  
Omar Felix ◽  
Janae Csavina ◽  
Kyle P. Rine ◽  
MacKenzie R. Russell ◽  
...  
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Mine Tailings ◽  
Dynamics Model ◽  
Dust Transport ◽  
Computational Fluid Dynamics Model ◽  
Tailings Impoundment

Mobilization and attenuation of heavy metals within a nickel mine tailings impoundment near Sudbury, Ontario, Canada

1998 ◽  
Vol 36 (3-4) ◽  
pp. 305-319 ◽  
Author(s):  
R. G. McGregor ◽  
D. W. Blowes ◽  
J. L. Jambor ◽  
W. D. Robertson
Keyword(s):  
Heavy Metals ◽  
Mine Tailings ◽  
Tailings Impoundment

scholarly journals UAV Remote Sensing Surveillance of a Mine Tailings Impoundment in Sub-Arctic Conditions

2017 ◽  
Vol 9 (12) ◽  
pp. 1318 ◽  
Author(s):  
Anssi Rauhala ◽  
Anne Tuomela ◽  
Corine Davids ◽  
Pekka Rossi
Keyword(s):  
Remote Sensing ◽  
Mine Tailings ◽  
Tailings Impoundment ◽  
Arctic Conditions
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