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2014-04-16
This report describes Oil Sands Research and Information Network (OSRIN) activities and accomplishments for the fiscal year (FY) April 1, 2013 to March 31, 2014. Key accomplishments for OSRIN this past year include: • Management of 38 research projects, support of 3 conferences and a Student...
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2003-01-01
Miller, S., Andrina, J., Richards, D.
The Grasberg is a large copper and gold open pit mine operated by PT Freeport Indonesia and located in the high equatorial mountains of Papua Province, Indonesia. The climate is alpine/sub-alpine with little seasonal variation in temperature and rainfall. The annual precipitation varies from...
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2003-01-01
Neale, A., Miller, S., Michaelsen, D.
The Grasberg Mine is a copper and gold open pit mine operated by PT Freeport Indonesia (PTFI) and located in the high equatorial mountains of the Indonesian province of Papua. The climate is alpine/subalpine with little seasonal variation in temperature or rainfall. The daily average temperature...
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2003
Madison, J. P., Gammons, C. H., Poulson, S. R., Jonas, J. P.
Spatial and temporal trends in water chemistry in the acidic (pH ~2.6) Berkeley Pit lake, Butte, Montana, can be explained by a newly developed iron-cycling model. Key elements of this model include: 1. subaqueous oxidation of pyrite and other metal sulfide minerals by dissolved ferric iron,...
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2014-03-17
Liang, J., Gamal El-Din, M., Estrada, L.P., Tumpa, F., Liu, Y.
The accumulation of mature fine tailings (MFT) in tailings ponds with very slow natural consolidation rate has been a concern for decades. Previous studies and current practices for tailings consolidation focus on the addition of various inorganic and organic additives to reduce MFT production...
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2003-01-01
Ayres, B., Dirom, G., Christensen, D., Januszewski, S., O’Kane, M.
Four field test plots were constructed in 1998 on a sloped waste rock surface at the Myra Falls Operations of Boliden Westmin (Canada) Limited to evaluate hydraulic performance of alternate cover system designs. The field test plot cover systems were designed to control oxygen ingress and water...
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2003
Milczarek, M., Yao, Tzung-mow, Vinson, J., Word, J., Kiessling, S., Musser, B., Mohr, R.
Properly designed evapotranspirative (ET) cover systems can greatly reduce the amount of infiltration and groundwater recharge (deep percolation) into potential acid generating mine waste. In arid and semi-arid environments, infrequent precipitation, low measurable subsurface fluxes, spatial...
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2003
Ludgate, I., Coggan, A., Davé, N. K.
The performance of in situ, shallow water covers in controlling acid generation was evaluated at four recently decommissioned pyritic uranium tailings sites at Elliot Lake, Ontario, Canada. The tailings are acid generating, having a pyrite content of approximately five to ten per cent and a very...
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2003
Vertical flow systems (SAPS, vertical flow wetlands) are increasingly used for passive treatment of mine drainage that is net acid. Data on 30 systems in eastern US show that well designed systems typically add about 40 g/d/m2 of alkalinity to influent net acid water. If they are designed with a...