04 Mar 2025
Mining and Metals
Passive treatment of acid mine drainage water: a sustainable solution
Publications
-
Acid mine drainage (AMD) is a persistent environmental challenge. It occurs when sulfide minerals, exposed to air and water during mining, break down and produce acidic, metal-laden water. This contaminated water harms ecosystems, pollutes water sources and in general creates challenges for mining operations. Traditional treatment methods (active treatment technologies) can address AMD but are often costly and energy-intensive. On the other hand, passive treatment systems rely on natural biological, chemical and physical processes to treat AMD. These systems provide a more environmentally sustainable and efficient solution under the right conditions. This article explores passive treatment systems, including their types and longevity, highlighting their potential as a long-term environmental remediation approach.
-
25 Feb 2019Power and RenewablesStrategic asset management planning (SAMP) in major industrial electrical networks
-
Pierre Girard, P.Eng.
National Practice Leader, Electrical
-
-
22 Feb 2019Energy and Chemical ProcessesThe application of numerical modelling in efficiency-driven designs: ventilation problem
-
Lyne Ricard, P.Eng.
Senior Consulting Expert, Advanced Fuels and Chemicals
-
-
21 Feb 2019Power and RenewablesOptimizing the design of penstock manifold with 3D computational fluid dynamics (CFD) simulation
-
21 Feb 2019Mining and MetalsHow to get rid of errors in your drilling database in 25 questions
-
19 Dec 2018Mining and MetalsAtmospheric dispersion modelling is a mathematical simulation of how air pollutants disperse in the atmosphere. These pollutants are most often dispersed in the form of gases (e.g., formaldehyde, nitrogen oxides, etc.), in the form of solids (e.g., dusts, metals and semi-metals) or in the form of odours. These atmospheric pollutants can be released through many different sources: chimneys, exhaust vents, liquid or solid surfaces, access roads (paved or not), stockpiles, etc. In general, modelling is used to verify compliance of an industrial facility with current applicable air quality regulations. These regulations often propose maximum pollutant concentrations that must be respected at ground level outside the emitting plant property. Exceeding maximum ground level concentrations can be considered a violation of air quality or environmental regulations. Atmospheric dispersion modelling is therefore the ideal tool to determine the impact a plant will have on air quality and its ability to comply with air quality laws and regulations in the event it exceeds standards.Everything you need to know about atmospheric modelling
-
David Giard, P.Eng., M.Sc.
Senior Engineer, Environmental Engineering
-
-
18 Dec 2018Power and RenewablesWind farms: noise challenges
-
12 Dec 2018Power and RenewablesAddressing pressure loss and oil leakage in Kaplan turbines and the impact on efficiency
-
François St-Germain, P.Eng.
Principal Engineer, Industrial and Hydro
-
-
03 Dec 2018Power and RenewablesGeomatics and surveying: essential engineering tools
-
Marie-France Proulx, P.Eng., M.A.Sc., P.M.P.
Senior Engineer, Earth and Infrastructure
-
-
28 Nov 2018Mining and MetalsUsing speed variation for pumps
-
Roman Dorfman, P.Eng.
Principal Engineer, Piping
-
-
27 Nov 2018Power and RenewablesWhen preparing proposals, many of you might wonder how much should be budgeted for project management. Here are a few tips.Budgeting tips for engineering project management
-
Marie Chiasson, P.Eng.
Practice Leader, Engineering Management
-
-
02 Nov 2018Mining and MetalsThe use of 3D models and analysis in support of waste stockpile design and operations
-
-
02 Nov 2018Mining and MetalsPractical nomograms for waste rock piles design on competent foundations
-
-
02 Nov 2018Mining and MetalsMine waste rock storage facilities design, construction and operation as engineered structures
-
-
02 Nov 2018Mining and MetalsAssessment of design and operating practices on the risks associated with waste rock stockpiles
-
-
02 Nov 2018Mining and MetalsGuidance for the safe and optimized operation of waste rocks facilities
-
-
23 Oct 2018Power and RenewablesUnderstanding, quantifying and correcting noise sources
-
06 Jul 2018Power and RenewablesControl system performance: Which figures should be considered?
-
Michel Ruel, P.Eng.
Expert, Process Control
-
-
06 Jul 2018Power and RenewablesEverything you need to know about arc-flash hazard analyses
-
Joel Sourceaux, P.Eng.
Principal Engineer, Electrical - Power Systems, Protection and Control
-
-
06 Jul 2018Power and RenewablesCommissioning and maintenance of electrical distribution equipment: which approach to adopt
-
Dominic Dubreuil, P.Eng.
Electrical Engineer
-
-
05 Jul 2018Mining and MetalsIf you are considering an industrial or mining project, many assessments and studies must be performed to ensure educated planning. For example, the Environment Quality Act regulates the environmental impacts of these types of projects and forces the developer to meet certain legal obligations, such as assessing the impact any noise will have. This article provides a quick overview of the issues and challenges that must be addressed when planning industrial and mining projects.Implementing an industrial mining project: noise challenges
-
05 Jul 2018Power and RenewablesPower grid protection... don't wing it!
-
Rémi Hallé, P.Eng.
Senior Engineer, Electrical - Power Systems, Protection and Control
-
-
05 Jul 2018Power and RenewablesWorkforce challenges in industrial electrical facilities
-
Pierre Girard, P.Eng.
National Practice Leader, Electrical
-
-
05 Jul 2018Power and RenewablesBBA's equipment and systems testing process
-
Pierre Girard, P.Eng.
National Practice Leader, Electrical
-
-
17 May 2018Energy and Chemical ProcessesMajor incidents: corrective actions for "never again!"
-
Lyne Ricard, P.Eng.
Senior Consulting Expert, Advanced Fuels and Chemicals
-
-
06 May 2018Power and RenewablesThis article appeared in the Ressources Mines et Industrie magazine in May 2018. The concept of Industry 4.0, or industry of the future, is a new way of using innovative technologies to optimize production. It is about using new technologies wisely, either inside or outside the plant.Industry 4.0 or a new wave in an industrial environment
-
Michel Ruel, P.Eng.
Expert, Process Control
-
-
04 May 2018Power and RenewablesPower generating stations: a wealth of opportunity
-
-
11 Jan 2018Power and RenewablesInterconnection: 3 things renewable developers should know
-
05 Dec 2017Power and RenewablesThe benefits of witnessing electrical factory acceptance tests (FATS)
-
Maurice Brisson, P.Eng., M.A.Sc.
Senior Consulting Expert, Power System Planning
-
-
06 Oct 2017Power and RenewablesRevisiting electrical energy saving initiatives for industrial facilities
-
Aaron Mc Loughlan
Electrical Engineer-in-Training (EIT)
-
-
05 Jul 2017Other industriesLearn more about managing explosion hazards more effectively in part 1 of this blog article. Imagine a plant or factory that has been operating for many years. Its equipment and processes have been working continuously under the same conditions for all that time. A significant risk will only be identified when a project manager takes a training course or after the company receives an insurance notice, an occupational health and safety report from a provincial regulator (e.g., WorkSafeBC, CNESST), an incident report (e.g., fire), or the recommendations of a supplier or an expert: the dust and powders at the plant are combustible and may cause certain equipment to explode.Combustible dust: managing explosion hazards more effectively – Part 2
-
Hugues Châteauneuf, P.Eng.
Senior Consulting Expert, Ventilation, Hazardous Locations, Explosion Hazards
-
