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MDAG Case Study 23
Up MDAG.com Internet Case Study 23 Rock Grain Size and Its Implications for Minesite-Drainage Chemistry by K.A. Morin and N.M. Hutt © 2006 Kevin A. Morin and Nora M. ... rock grains and surfaces. Conclusion             Under non-equilibrium conditions, the assessment or prediction of minesite-drainage chemistry may require the estimation of temporal changes in grain size and grain-surface area. To ...
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MDAG Case Study 17
Thiobacillus ferrooxidans, which has been granted the mighty powers of driving acidic drainage (ARD) and metal leaching at minesites. To some, there would be no ARD without this ... Environments. Can the Gaia Theorem help to explain this? In our own work with minesite-drainage chemistry, we see repeating patterns over decades of monitoring and in high-frequency monitoring. We ...
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Minesite Drainage Assessment Group
AND THE ENVIRONMENT MDAG.com: Over a Decade of Providing Valuable Technical Information on Minesite-Drainage Chemistry and Environmental Geochemistry on the Internet A 30-YEAR SCIENTIFIC ANNIVERSARY! In 2008, Dr. ... was followed by many other types of mining, like gold, uranium, potash, and copper. His ultimate goal, since the mid-1980's, was twofold: to develop conceptual models of minesite-drainage ...
mdag.com

Internet Case Studies
Bimodal Distribution of pH at Minesites with Acid Rock Drainage Morin, K.A., and N.M. Hutt. 2008. Bimodal Distribution of pH at Minesites with Acid ... Case Study #27, www.mdag.com/case_studies/cs27.html 26. Scaling and Equilibrium Concentrations in Minesite-Drainage Chemistry Morin, K.A., and N.M. Hutt. 2007. Scaling and Equilibrium Concentrations in Minesite- ...
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Freshwater Website: Informational Resources and Services (Glossary)
Mine drainage can also contain high concentration of metal ions. acid rain - Rainfall with a pH of less ... high dissolved oxygen level. organic - (1) Referring to or derived from living organisms. (2) In chemistry, any compound containing carbon. organism - A living thing. P parts per million (PPM) - The number ...
www.ec.gc.ca

Acid Mine Drainage at the Nickel Rim Mine Tailings
Detailed measurements of pore water chemistry, pore gas composition, tailings mineralogy and hydraulic parameters were made at these nests. Geochemical and hydrogeological data were interpreted with the assistance of MINTEQA2 (Allison et al., 1991 ...
www.science.uwaterloo.ca

Metal Mobility in an Aquifer affected by Acid Mine Drainage
Solids phase information will be combined with groundwater chemistry to produce a refined conceptual model for metal fate and transport at Nickel Rim. The ... W.D., Frind, E.O. 2000. Modelling of sulfide oxidation wiht reactive transport at a mine drainage site. J. Contam. Hydrol. 41, 23-47. Heron, G., Crouzet, C., Bourg, A.C.M., ...
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Mining Effluent Technologies at CANMET-MMSL
NRCan CAN HELP CANMET-MMSL has established a team of experts in inorganic chemistry, hydrometallurgy and biotechnology to develop treatment technologies to help the mining industry meet regulations. The integration of chemical and microbial expertise to provide a better understanding of natural ...
www.nrcan.gc.ca

Climate Change Teaching Resources
These online resources are derived from an MSc course on atmospheric chemistry, which I help teach in Edinburgh, and from some of my own published papers and articles ... S Reay, Atmospheric Environment, 2003 (Full Paper in PDF format) Nitrous oxide emission from agricultural drainage waters Dave S Reay et al., Global Change Biology, 2003 (Full Paper in PDF format) ...
ghgonline.org

Groundwater Glossary: The Groundwater Foundation
Hydrology: The study of the occurrence, distribution, and chemistry of all waters of the earth. I Impermeable layer: A layer of material (such as clay ... drains into a stream, channel, lake, reservoir, or other body of water; also called a drainage basin. Water table: The top of an unconfined aquifer; indicates the level below which soil ...
groundwater.org