Acid Rock Drainage

Author(s): 
Stephen Day, Tom Sharp
Category: 
Water Management

Awareness of the effects of mining on water quality has existed for several centuries but the need for management measures and consideration of the associated costs to address potentially unacceptable water quality effects has increased in modern times. This has arisen from improved Read more... about Mine Water Liability: Evaluating the Risks and Potential Costs

Author(s): 
G.W. Wilson, D.J. Williams, Maritz Rykaart
Category: 
Mine Waste

Soil cover systems are routinely used to reduce acid rock drainage (ARD) from mine waste rock dumps and tailings impoundments. A technology for the analysis, design, instrumentation and monitoring of barrier-type (oxygen limiting) and store/release type covers has rapidly developed and the Read more... about The Integrity of Cover Systems - An Update

Author(s): 
Rob Bowell, Matthew Dey, F Pooley, KP Williams
Category: 
Mine Waste

A major issue with the disposal of sulphide-rich mine waste is the release of acid rock drainage (ARD). Often the course of action taken is ‘end-of-pipe’ treatment, however this action is undesirable due to high cost and continued liability. The environmental problem of ARD has long been Read more... about ARD in waste rock: preventive methods

Author(s): 
Rob Bowell, S. B. Rees, Jeff Parshley
Category: 
Geochemistry

An essential component in the evaluation of a mineral deposit or a mine development project is the consideration of environmental impact, particularly the leaching of deleterious elements such as As and many of the transition metals or of Acid Rock Drainage (ARD) generation. A major part of this Read more... about Geochemical Predictions of Metal Leaching and Acid Generation: Geologic Controls and Baseline Assessment

Author(s): 
Thomas Barnes, Rob Bowell, Devin Sapsford, J. Kofoed, Matthew Dey, Keith Williams, R. Annells, J. Grogan
Category: 
Project Evaluation

The Malmbjerg (a porphyry granitic ridge) in eastern Greenland hosts a significant world class molybdenum deposit of the ‘Climax’ (high-F low base metals) type. The detailed characterization of the potential of the Malmbjerg deposits to release Acid Rock Drainage (ARD) and Potentially Read more... about The Assessment of the ARD Potential for a 'Climax' Type Porphyry Molybdenum Deposit in a High Arctic Environment

Author(s): 
Alexey Fortygin, John Martschuk, Jim Robertson, Rob Bowell, and Matt Dey
Category: 
Project Evaluation

In the assessment of acid rock drainage and metal leaching potential for a mine the standard approach is to assess each lithogy, in conjunction with alteration and/or ore type. These variations in lithogies are then referred to as material types and further sub-classified into either reactive or Read more... about The Use of NSR During the Fedorovo ARDML Evaluation Program

Author(s): 
C Linklater, A Watson, J Chapman, R Green and S Lee
Category: 
Geochemistry

Kinetic testing has been conducted on six samples of sulfidic Mount McRae Shale from the Pilbara, West Australia. The total sulfur content of the samples ranged from 0.2 to 8.9%. Read more... about Weathering and Oxidation Rates in Black Shales – A Comparison of Laboratory Methods

Author(s): 
C Linklater, A Hendry and J Chapman
Category: 
Geochemistry

An acid and metalliferous drainage study considers available drill-hole data and mine planning information to conduct a high level assessment of the potential for AMD from waste storage facilities and within the pit void. Read more... about Acid Mine Drainage Risk Assessment Utilising Drill - Hole Data and Geological Modelling Tools

Author(s): 
Bronwen Forsyth, Stephen Day, SRK Consulting Canada Inc. and Oladipo Omotoso, Suncor Energy Inc.
Category: 
Geochemistry

Geochemical Characteristics of Oil Sand Tailings and Bitumen Upgrading By-Products, Alberta, Canada Read more... about Geochemical Characteristics of Oil Sand Tailings and Bitumen Upgrading By - Products, Alberta, Canada

Author(s): 
Stephen J. Day and Chris B. Kennedy
Category: 
Geochemistry

Setting ARD Management Criteria For Mine Wastes with Low Sulfide and Negligible Carbonate Content Read more... about Setting ARD Management Criteria For Mine Wastes with Low Sulfide and Negligible Carbonate Content

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