Published On: Friday, 09 March 2018

Put Science Funding to Practical Use: Reclaim Brownfields

Put Science Funding to Practical Use: Reclaim Brownfields
One of the most common examples of a brownfield site is a closed gas station, examples of which can be found across Canada. The sites are difficult to re-develop due to contamination in the soil but a new Canadian technique is solving that problem.

By Cody McKay, Policy Analyst for Polytechnics Canada

CANADA - There are tens of thousands of brownfield sites scattered across Canada – many of them in urban locations. Enter collaborations with applied research. And a Canadian-made solution.

Outstanding discovery research occurs at universities across the country. However, far too often this research fails to arrive at the commercial marketplace. Work being done to deal with brownfield sites offers a perfect example.

Brownfields are abandoned industrial sites, such as old gas stations, that can’t be redeveloped because of the presence of hazardous substances, pollutants or contaminants in the soil. As a result, they remain empty, barren eyesores for communities, and financial drains for their landowners, who can’t repurpose the land, and environmental liabilities for future generations.

Over the past decade, a collaboration between Federated Co-op (FCL), which owns a number of brownfield sites, and the University of Saskatchewan (U of S) developed a variety of methods to stimulate the bacteria in the soil to consume the pollutants more rapidly.

This remediation method is faster than the natural bacterial breakdown process, which can take decades and is limited to only a few months of the year in cooler climates. It’s also less invasive and more cost-effective than digging out the entire contaminated site and replacing all the soil – the only other option landowners are usually left with.

Collaborating with the U of S and FCL, and building on their earlier research, Dr. Paolo Mussone, an applied research chair in bioindustrial and chemical process engineering, and his colleagues at NAIT’s Centre for Sensors and System Integration built sensors to monitor the bacteria and track how quickly the pollutants in the soil were degrading.

The team experimented with the technique and the sensors at an old fuel storage site owned by FCL in Saskatoon that had been leaking for 20 years. They used the technology to monitor the bacteria’s consumption and adjust the stimuli that increased this consumption in real time.

This applied research significantly shortened the time it took to clean the site. Only a few years later, the land is home to a commercial retail space.

Mussone’s work is focused on building prototypes that use emerging nano- and biotechnologies. This applied research seeks to help the energy sector improve operational efficiencies, reduce emissions and accelerate environmental remediation.

So where some would see the scars of industrial activity on the landscape, Mussone sees an opportunity to put his research into action.

Eventually, Mussone hopes to see the technology applied across Western Canada, where similar sites continue to hinder community-building efforts.

The science research undertaken by the U of S and FCL, and the collaborative applied research undertaken by NAIT, has led to a sustainable, commercial solution.

Canada hs globally excellent fundamental discovery science. And through polytechnics like NAIT, Canada has excellent applied research opportunities that can be harnessed for economic impact.

Recognizing and supporting all types of research and, more significantly, fostering research collaboration among institutions with different research mandates and missions, is the surest and most positive way to build a sustainable science and innovation ecosystem for Canada.
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