Digital Edition Sponsored By ERIS:
December 2021 Articles
Environmental Science & Engineering Magazine’s December 2021 issue includes our annual operator and consultant forums. Article topics include: cyber attacks on utilities, Red Deer’s new residuals management facility, groundwater flow monitoring for contaminants and public health studies, Canada’s biogas potential, augmented reality for wastewater plants, and more…
Red Deer’s new residuals management facility will reduce environmental impacts
The City of Red Deer engaged Associated Engineering to improve management of the residual waste streams produced by the city's water treatment plant. The solution was to build a new residuals management facility.
District metered areas: Why accuracy matters
New approaches in measuring non-revenue water, such as virtual district metered areas (where there is no boundary valve closure), and an increase of monitoring points with flow, pressure, or noise data remote collection, require accurate and repeatable flow data as a base for all the top-end analysis.
Using hydrogeological flow modelling to identify sources of hepatitis outbreaks
Hydrogeological flow modelling approaches provide a viable and cost-effective means to identify sources of groundwater contamination contributing to hepatitis outbreaks.
The passion to save our water ecosystems can positively impact those around us
An Ontario student shares her story on becoming environmentally aware and learning to appreciate our water ecosystems and wastewater infrastructure.
Using a camera nozzle and chain cutter to efficiently handle blocked sewers
The skillful use of high-powered nozzles with forward penetrating jets can sometimes dislodge partial obstructions in smaller sewer pipes.
Dauphin meets its cold weather ammonia level requirements using a new technology
During the winter months, the City of Dauphin, Manitoba's wastewater treatment lagoon is typically covered in a thick layer of ice. That posed a problem, as extremely low lagoon temperatures affect ammonia levels, which are regulated, when effluent is released into the Vermillion River
Remote gas flow monitoring in a biodigester
In the natural gas industry, it is a well-established technique to produce biogas by aerobic or anaerobic digestion, starting from various biodegradable materials.
Using air-operated double-diaphragm pumps to optimize filter press operation
For those looking to optimize their filter-press operations, no matter the industry or product, air-operated double-diaphragm pumps offer a number of operational advantages.
Using augmented reality tools to inspect wastewater plants
Due to pandemic-related travel restrictions, Veolia North America was not able to provide on-site support for a wastewater plant condition assessment project. The evaluation required the use of specialized tools and on-site staff were not familiar with the operation of these tools. The team ultimately decided to use an augmented reality tool to remotely conduct the evaluation of the condition of the equipment at the plant.
Incidents of cyber attacks on the rise during the COVID-19 pandemic
Cybersecurity, the protection of internet-connected computer systems and networks from outside attacks, is one of the most serious economic and security challenges Canada and Canadians are facing. Since the onset of the COVID-19 pandemic, organizations in Canada and around the world have seen a rise in cybersecurity incidents affecting corporate devices.
How to diagnose and repair automatic control valves
As control valves are often unseen or in remote locations, how do crews know when something is wrong before it causes a bigger problem? What can they do to prevent or reduce the risk? The answers lie in the capabilities of the control valve.
The importance of the author-verifier relationship in project management
Communication is a challenge because, while we think we know what we are saying, our words may say something else, and we are only guessing what the other person is hearing. If the conversation is not genuine, or ends too soon, we are in danger of walking away not understanding what the other person was saying.
Capturing the value of converting records to digital formats
As how we use digital tools to assess, design, engineer, construct, operate and maintain our built and natural environments evolves, we realize how valuable those same documents would be in an accessible format, informing our decisions, and leading to smarter, stronger assets.
Embedding sustainability as part of your company’s DNA to drive growth
With the introduction of the United Nations Sustainable Development Goals, we saw sustainability become front of mind for business leaders who are progressively making commitments towards their decarbonization targets and better environmental, social and governance (ESG) outcomes.
Choosing right delivery model more important than ever for large infrastructure projects
The “pure alliance” approach relies on a mutual agreement that covers risk sharing, setting a cap on financial exposure, and no litigating. If a problem occurs, it is everybody’s problem and all parties work together to solve it. An alliance approach makes a fundamental shift to a shared or collective set of obligations, and a shared approach to risk and opportunity.
Funding innovation in engineering is critical to tackling climate change
Prime Minister Justin Trudeau announced at COP26 that Canada will impose a hard cap on emissions from the oil and gas sector. Driving more innovation in environmental science and engineering will help achieve these ambitious targets, not just with oil and gas, but with wastewater, air pollution, construction and infrastructure.
Small town chooses prefabricated wastewater lift stations
The town of Herbert hired Stantec Consulting to identify the best replacement solution for its two aging wastewater lift stations. However, the town no longer had the design parameters for the existing stations, which originally went online sometime in the late 20th century.
Microtunnelling used for twin culvert replacement project
The purpose of the project was to replace and decommission an existing cast-in-place reinforced concrete, single cell box culvert that was situated up to 8 metres below the grade of the roadway. Furthermore, it was required that the project be completed without causing significant disruptions to the traffic along the roadway.
Canada ready to unleash the power of biogas
Canada saw a 50% increase in operational biogas capacity over the last decade, which is great news for both the economy and the environment, as is the strong outlook for future development contained in the latest report from the Canadian Biogas Association.
Appreciating the value of face-to-face networking opportunities
While the 2021 tradeshow and attendance were about half of what they were for 2019, there was a sense of comfort that the event signaled the return of live events after a two-year hiatus. Most exhibitors I spoke with felt it was important to attend, as those walking the show were involved in projects and needed to learn about new equipment, technologies, etc.
Examine the fate and transport of groundwater contaminants before settling legally
Determining the responsible party of impacted groundwater is difficult. For example, when you have multiple owners of a business over time, multiple potential sources in close proximity, or complex subsurface conditions, there may be some uncertainty about when and where the release occurred.
Ontario bill targets removal of licensure barriers for immigrant engineers
A new Ontario bill aims to eliminate the requirement for Canadian work experience, often cited as the most significant barrier for Canadian immigrants seeking licensure in fields such as engineering.
Just one quarter of internationally-trained...
Canada makes new environmental pledges at UN climate conference
While the 2021 United Nations Climate Change Conference (COP26) in Scotland continues until Friday, Canada has already made several key environmental commitments, including the start of climate financing for poorer countries, and the end...
World’s largest wastewater energy transfer project underway for Toronto hospital
With a major investment now secured through the Canada Infrastructure Bank, approximately 90% of heating and cooling requirements for the Toronto Western Hospital will soon come from what may be the world’s largest raw...
Seventy Canadian groups sign plastics pact to pivot towards circular economy
Some 70 organizations have signed onto a pact that offers a new roadmap towards plastic reduction and the creation of a circular economy in Canada by 2035.
Orchestrated through the Ellen MacArthur Foundation’s global Plastics...
USask study finds rubber tire chemicals impacting river through urban runoff
Researchers at the University of Saskatchewan’s School of Environment and Sustainability say they’ve undertaken the first study of its kind in Canada to determine whether chemicals from rubber tires are entering waterways and endangering...



























