MDAG.com: Since 1997, Providing Valuable Technical Information on Minesite-Drainage Chemistry and Environmental Geochemistry through the Internet
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New for 2011!
Interested in minesite-drainage chemistry, but not sure where to start? Looking for a basic introduction with dozens
of colour photographs from minesites around the world?
MDAG Publishing has released a new ebook by Dr. Kevin Morin, entitled Minesite Drainage Chemistry: An Introduction.
This printable ebook in PDF format can be read on many ebook readers, laptops, and desktops. It costs CAD$5.00,
can be downloaded immediately after online payment, and contains no digital-rights management or security limitations.
Click here, and then click the first link for the ebook.
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In 2011, we at MDAG
continue to focus on Internet case studies and
books, with less emphasis on publishing
papers at conferences and in journals. This allows us to:
- address issues of immediate concern to us;
- write case studies that are longer (e.g., MDAG Internet Case Studies
#25 and
#26) or shorter (e.g., MDAG Internet Case Study
#9 and
#30) than normally accepted by conferences and journals; and,
- fulfill our third corporate commitment "to
assist in the dissemination of non-confidential information and data through
publications and meetings to promote overall advancement of environmental
studies".
Here are the most recent case studies on MDAG.com.
This website and others are dedicated to the prediction and control of
minesite-drainage chemistry, including acid rock drainage (ARD) and acid mine
drainage (AMD). How successful do you think prediction and control are in
general, when comparing pre-mining predictions and design to actual results
during mining? Put it this way - would you pay a motor-vehicle mechanic when he
failed to fix vehicles most of the time, or pay a medical doctor whose diagnoses
were wrong most of the time?
MDAG.com Internet Case Study 37. The
Science and Non-Science of Minesite-Drainage Chemistry.
Someone says, "microbial activity can greatly affect minesite-drainage chemistry, like accelerating sulphide oxidation by one million times!". Someone else says, "no, microbes hardly affect minesite-drainage chemistry at all!". Sound familiar? Here is what more than 80 references, back to the 1920's, have to say about that:
MDAG.com Internet Case Study 36. Microbial Effects on Minesite-Drainage Chemistry.
What do you find when monitoring drainage chemistry at minesites for decades, during operation and after closure?
Is the chemistry steady, or are there long-term trends?
Do aqueous concentrations show much dependence on pH or sulphate?
Here is what you find by looking at up to 31 years of monitoring data:
MDAG.com Internet Case Study 33. Thirty-One Years of Monitoring Minesite-Drainage Chemistry, During Operation and After Closure: The Bell Minesite, British Columbia, Canada.
MDAG.com Internet Case Study 34. Twenty-Nine Years of Monitoring Minesite-Drainage Chemistry, During Operation and After Closure: The Granisle Minesite, British Columbia, Canada.
MDAG.com Internet Case Study 35. Twenty-Three Years of Monitoring Minesite-Drainage Chemistry, During Operation and After Closure: The Equity Silver Minesite, British Columbia, Canada
We steadfastly believe that the environmental effects of drainage chemistry can
only be understood, predicted, and moderated by thoroughly understanding past
competent work and by carefully studying existing operations and sites. Heed the
old words of wisdom: "Those who ignore the past are doomed to repeat it".
Is that why we hear that about 90% of predictions of minesite-drainage chemistry
are too low, leading to unexpected costs and environmental effects for mining
companies? This
is why we heavily emphasize real case studies
with abundant data, followed by theory and modelling in subordinate roles.
Privacy Policy: We don't know who you are and we do not try to find out. Enjoy the
site! The only way we will know who you are is if you send us an email. We will add you to an email broadcast whenever the site is
updated, if you send us an email requesting this.
Created by K. Morin