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October 2021 Articles

Environmental Science & Engineering Magazine’s October issue article topics include: wastewater treatment plant modernized to prepare for a growing population; managing constituents of emerging concern in drinking water; emergency response planning necessary to protect corporate assets; the detrimental effects of CSOs and COVID-19; improving ammonia removal; thermal hydrolysis boosts biogas production; and more…

Steve Davey 1970 Oldsmobile Delta 88

If it isn’t broken, don’t try to fix it

By Steve Davey As a lot of us did in the 1970s, I too desperately wanted my own car, which was a ticket to freedom, and seemingly a right of passage into pending adulthood. So...
Measurement technology to control and monitor wastewater processes

FAQs about level and pressure measurement technology for wastewater treatment

Production processes are becoming ever more complex. So, it is really important that the measurement technology used to control and monitor them is understandable and intuitive. Read the full article in ES&E Magazine’s October...
Lakeview Village in Mississauga, Ontario

Emergency response planning necessary to protect corporate assets

Cyberattacks have become increasingly established as external threats that could negatively impact business operations. So this means companies must adopt secure cybersecurity measures that will prevent cases of unauthorized access to information and loss of data.
HRS Unicus Series heat exchangers

Thermal hydrolysis boosts biogas production from biomass

The conversion of various forms of sustainable biomass into biogas and advanced liquid biofuels has significant potential to contribute to renewable energy and carbon reduction goals
BioCord system

Improving ammonia removal at a petrochemical plant’s lagoon

A petrochemical manufacturing plant in Western Canada was experiencing difficulty in meeting the required ammonia discharge limit from its on-site wastewater lagoon system during cold-weather conditions.
pipe

Hamilton restores aging watermain sections following friction loss testing

A large portion of the watermains in Hamilton are unlined cast iron pipe (CIP). While the average age of the city’s watermains are around 44 years, much of this CIP is closer to 83 years.
pharmaceutical

Managing constituents of emerging concern

The presence of a CEC, such as a pharmaceutical or industrial compound, in surface or drinking water can raise public concerns as to whether the water is safe to use for drinking, recreation, fishing, or other purposes.
surface water biofiltration

Integrating biofiltration into existing water plants to improve contaminant removal

This tailored collaboration project with the City of Columbus, Ohio, aimed to combine much of the biofiltration research and demonstrate extensive full-scale biofiltration optimization and integration into the overall treatment train.
Geomembrane

Geomembrane solves waterproofing challenge in difficult underground installation

A large Saskatchewan potash mine needed a waterproofing membrane during maintenance on a service shaft that is used to transport personnel and equipment from ground-level to various depths of the mining operation. The site alone posed a number of challenges. It was 1,300 metres below grade and shaft wash water was expected to be entering the area long term, causing erosion problems.
landfill liner

Aquifer recharge rates can affect landfill leachate plume migration rates

Leachate releases at the bottom of waste impoundments are difficult to control and may be active for years, suggesting the need for ongoing management of associated plumes in groundwater. This study examined the effect of recharge to the water table as a component of natural attenuation for stabilizing narrow contaminant plumes from continuously leaking sources.
valve vaults installation

A new approach to construction allows for smaller valve vaults

With the M11 harness, there are multiple areas that can fail, and when failures occur, they are costly. The question that must be addressed is: “How is it possible to economize space in valve vault construction in a way that is both safe and effective?” The answer is to provide efficient thrust restraint for the pressure piping that passes through the vault in a way that does not require a harness.
ground-breaking ceremony

Remote B.C. village finally gets safe, reliable drinking water system

Associated Engineering worked with the community to consider several surface water sources surrounding the Village of Kluskus in central British Columbia. Upon examination, the long-term sustainable yield of these surface water sources would not meet the domestic water demands of the community.
Combined sewer overflow discharges

The detrimental effects of combined sewer overflows and COVID-19

Researchers have found that even low levels of RNA from COVID-19, and other coronaviruses, can be detected in raw sewage before full-fledged outbreaks occur, thus allowing governments and health authorities more time to respond to protect public health and safety.
Mobile testing unit

Field-testing now complete on mobile district metering project to cut water losses

This project involved the development and deployment of a mobile testing unit to directly measure the minimum night flow (MNF) into temporary and predominantly residential district metered areas (DMAs), which are relatively small, isolated sectors of a water distribution network.
Waga Energy

Quebec landfill gas to be used as a renewable energy source

Waga Energy, a European company in the landfill gas-to-renewable natural gas (RNG) field, has signed a contract with Enercycle to deploy its patented WAGABOX® technology at the Saint-Étienne-des-Grés landfill. This project will be the first of its kind in Canada.

Wastewater treatment plant modernized to prepare for growing population

Midland, Ont. partnered with Schneider Electric to implement its EcoStruxure solution within its existing infrastructure. Equipping staff with easy access to data and information supports smarter energy management and enables decision-making grounded in real-time insights.
Basement-flood-stock-photo

Home Flood Protection Program empowering homeowners to take action

As intense rainfall events continue to increase across Canada, more homeowners should be vigilant about reducing the risk of basement flooding, say University of Waterloo program experts. The university’s Intact Centre on Climate Adaptation (ICCA)...
Gardiner-Expressway-deterioration

Ontario infrastructure has $52B repair backlog, FAO report finds

Forty-five percent of Ontario’s municipal infrastructure is not in a state of good repair, suggests a new report from the Financial Accountability Office of Ontario. The current cost to bring those municipal assets into a...
algae-bloom-research-equipment

Algal bloom toxicity harming fish year round, U of G study finds

Cyanobacterial toxins can harm fish populations even in the early stages of algal bloom development when humans cannot see it, not just during the peak of summer, new research from the University of Guelph...
ships with oil sheen on the water

Microbes biodegrade diesel fuel in Labrador Sea, study finds

Marine bacteria in the frigid waters of the Labrador Sea may be capable of biodegrading fossil fuels following diesel or crude oil spills from steadily increasing shipping traffic, a new study suggests. The study, published...