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Results 1 - 10 from 27 for sulphide production in 0.501 sec.

MDAG Case Study 14
This dilution will manage water chemistry for many decades to millennia and, if strong sulphide production begins, this is expected to lower aqueous metal concentrations further. Click on Figures 7 ... and shows that the acidic drainage is diluted in the saltwater column and that some sulphide production is beginning. As a result, Island Copper has implemented a low-maintenance closure plan ...
www.mdag.com

Papers - Methane March 2003
Papers - Methane March 2003 Methane Papers March 2003 Fey and Conrad Temperature dependence of methane production in a rice field Saari and Martikainen Dimethyl sulphide as an inhibitor of methane oxidation in forest soils Wang and Ineson Effects of inorganic N on methane oxidation in a forest soil Scheid et al. Impact of nitrate and ...
www.ghgonline.org

"Cleaning up Produced Water During Offshore Drilling
European countries' offshore oil and gas fields. It continues elsewhere for economic rather than technical reasons. Table 14: Technology to clean up Production Water (After API, 1995) Technology Processes Advantages Disadvantages Costs Carbon adsorption Modular granular activated carbon systems. Removes hydrocarbons and acid, base and neutral compounds; low energy ...
www.offshore-environment.com

BIOMINET Proceedings : Mining Effluent Technologies
(N. Kuyucak et. al.) Bacterial leaching of a complex sulphide ore (I. Suzuki et. al.) Microbial degradation of carbonaceous material in a copper molybdenum concentrate ... .W. Lee et. al.) Development of a biofiltration system to remove hydrogen sulphide from small oil and gas production facilities (E.C. Dombroski et. al.) Converting sulfide biologically (D. Sullivan et. ...
www.nrcan.gc.ca

EJMP&EP -
Pilot scale field performance of a reclamation scheme for sulphidic waste rock G. Gaidajis1,*, E. Mylona2, K. Adam3, E. Gazea4 1 Department of Production Engineering & Management, Democritus University of Thrace, University Library Building, 67100 Xanthi, Greece 2 Laboratory of Metallurgy, School of Mining and Metallurgical Engineering, National Technical University of ...
ejmpep.com

MDAG Case Study 12
Doñana National Park. The Aznalcóllar orebody was discovered in 1956 and brought into production 1979 by Andaluza de Piritas, S.A. (Apirsa) owned by Banco Central S.A. (Eptisa, 1998 ... major reason for this rush was the metal-leaching and acid-generating nature of the high-sulphide tailings, which could significantly contaminate downstream areas if runoff water from heavy rains carried the ...
mdag.com

MEI Online - Environmental Issues: Latest News
To Treat Acid Drainage At Two More Sites (Jan.15, 2004) Environmentally Friendly Manganese Metal Production (Jan.15, 2004) Assessing Risks For Common Water Treatment and Mining Chemicals (Jan.14, 2004) ... (Nov.10, 2003) Call for Papers for a Special Issue of the Journal of Cleaner Production: Improving Environmental, Economic and Ethical Performance in the Mining Industry (Nov.7, 2003) Advances in ...
www.min-eng.com

BHP Platinum Mine Mining Technology
Reserve base/grades 266.5Mt proven and probable grading 3.31g/t Pt+Pd+Rh+Au, plus Ni, Cu, Co (2005) Annual production 2.2Mt/y ... system. The dip and narrowness of the orebody preclude extensive mechanisation. Expand ImageDrilling in a production stope underground at Hartley Platinum. Expand ImageHartley plant flowsheet. The plant currently has a capacity ...
www.mining-technology.com

Ashanti Goldfields Gold Mine Mining Technology
Mineralisation comprises two main types: quartz veins containing high-grade free gold and the main sulphide ore in which narrow veins contain gold trapped within arsenopyrite. At end-2003, proven and ... and started two more surface operations at the Kunka and Adubrem deposits. During 2003, underground production totalled over 2.3Mt, surface mining added 476,000t, and tailings recovery almost 2Mt. ORE ...
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Pulp and Paper Production Basics
Making Paper as if the Earth Matters Pulp Pollution Primer More Information on Bleached Kraft Pulp Production and Recycling Why Does Pulp Pollution Matter? Pulp and paper is the third largest industrial ... to get there. The Primer is available in pdf format (384 kb). More information The Production of Bleached Kraft Pulp by Lauren Blum, Environmental Defence Fund, 1996. A detailed explanation of the ...
rfu.org