Skip to main content Skip to main navigation Skip to page-level navigation Go to the Disability Resource Centre Website Go to the DRC Booking Accommodation Portal Go to the Inclusive Technology Lab Website
The University of British Columbia
The University of British Columbia Okanagan campus
UBC Okanagan News
  • Research
  • People
    • Student Profile
    • Faculty Profile
    • Alumni Spotlight
  • Campus Life
    • Campus News
    • Student Life
    • Teaching & Learning
  • Community Engagement
  • About the Collection
    • Stories for Media
  • UBCO Events
  • Search All Stories
Home / 2014 / July / 04 / UBC researcher wins top award for study that examines mining waste

UBC researcher wins top award for study that examines mining waste

July 4, 2014

Research paper wins Thomas C. Keefer Medal after 10 years in the making

Craig Nichol

Craig Nichol

It has been a long road for UBC researcher Craig Nichol to help devise a green solution to mitigate landscape contamination from mine tailings. A joint research paper on the subject, which for various reasons took more than a decade to complete, has won top national honours.

Nichol, an assistant professor in earth and environmental sciences in the Irving K. Barber School of Arts and Sciences at UBC’s Okanagan campus, and three co-authors were recently awarded the 2014 Thomas C. Keefer Medal for the Best Paper of 2013 in hydrotechnical, transportation, or environmental engineering by the Canadian Society of Civil Engineers.

The award-winning paper examines the type and amount of materials used to cover mine tailings and how they may prevent contamination, or ‘acid rock drainage’ from the tailings.

The project began in 2000 with researchers Bonnie Dobchuk, G. Ward Wilson, and Michel Aubertin.  Nichol took over the work in 2003 while working with Wilson, who then held the Chair of Mining and the Environment at the Norman B. Keevil Institute of Mining Engineering at UBC. First drafts were completed in 2004, but busy schedules kept the study on hold. The research took place at the Detour Lake Mine, a gold find in northeastern Ontario. When the mine re-opened in 2012, the authors recognized the story needed to be told, and Nichol took the lead in getting the paper published.

Titled The Evaluation of a Single-layer Desulphurized Tailings Cover, it was published in the Canadian Geotechnical Journal in May 2013. The research examines how materials from the mining process can be used to cover mine tailings—with the goal of preventing the tailings from oxidizing and leaching  into ground water sources. This process, termed, ‘acid rock drainage’ — when water containing concentrations of acid and metals leaches from mine wastes—has become an environmental concern.

Dealing with mining tailings in a safe manner has proven to be an expensive process for mine operators and Nichol explains that before a mine closes, there must be plans in place for mine wastes to be covered, with the goal of re-establishing vegetation.

“Preventing acid rock drainage, or other harmful materials, leaching from mine wastes represents a large cost for current mines,” Nichol says. “The cost of remediating historical mines with no current owners represents a large liability to the Canadian taxpayer.”

At the Detour Lake Mine, desulphurized tailings were used to cover reactive tailings, which reduces cost of ground cover construction in areas where natural soils are not available, says Nichol. The paper details how this works. Essentially, the new ground cover creates an oxygen diffusion barrier to prevent generation of acid rock drainage from the underlying mine tailings.

“The modelling work allowed us to make recommendations of potential new methods for designing these covers to maximize their efficiency,” says Nichol. “This is particularly important for areas with limited natural soils that could be used as a cover material.”

Nichol says as the Detour Lake Mine has re-opened, researchers now have the opportunity to study the performance of the cover during the past 10 years to see how it compares to the modelled predictions.

“This should improve our ability to design covers at other mines,” he adds.

-30-

Media Contact

Patty Wellborn
E-mail: patty.wellborn@ubc.ca

Content type: Media Release
More content from: Irving K Barber School of Arts and Sciences (prior July 2020)

Trending Stories

  • How one student connects AI innovation to wildfire research
  • Robotics, AI advancing wildfire, agricultural research at UBCO
  • Psychedelic mushroom microdoses can improve mood, mental health
  • UBCO professor researches electric passenger light rail for Okanagan Valley
  • Putting community, students and research on the same track
All Stories
Contact Media Relations

About UBC Okanagan

UBC’s Okanagan campus is an innovative hub for research and learning founded in partnership with local Indigenous peoples, the Syilx Okanagan Nation, in whose traditional, ancestral and unceded territory the campus resides. The most established and influential global rankings all consistently place UBC in the top five per cent of universities in the world, and among the top three Canadian universities.

The Okanagan campus combines a globally recognized UBC education with a tight-knit and entrepreneurial community that welcomes students and faculty from around the world in British Columbia’s stunning Okanagan Valley. For more visit ok.ubc.ca.

Discover more about UBC Okanagan

Find a Program Admissions Book a Tour UBCO Facts
UBC Okanagan Campus News, University Relations

Innovation Precinct Annexation 1 (IA1)
3505 Spectrum Court
Kelowna, BC Canada V1V 2Z1

We respectfully acknowledge the Syilx Okanagan Nation and their peoples, in whose traditional, ancestral, unceded territory UBC Okanagan is situated.

 

Search all stories

Subscribe to receive news by email

Visit UBC's Vancouver news room

Global and Admin Messages

News

Okanagan Campus

TikTok icon Linkedin icon

UBC Okanagan News
Okanagan Campus
3333 University Way
Kelowna, BC Canada V1V 1V7
Find us on
  
Back to top
The University of British Columbia
  • Emergency Procedures |
  • Terms of Use |
  • Copyright |
  • Accessibility