At the Peterborough wastewater treatment plant, estimated yearly savings in the range of $100,000 to $160,000 are possible when the SENTRY data is used effectively to avoid upsets and fine tune operations based on changing influent conditions.

Toronto will host the 2023 America Water Works Association Conference and Expo on June 11 to 14, and while the association can be proud of its continued mission to advance the water industry and operations for both consumers and water companies, there’s still much to do, here and abroad, to improve water management, protection and even access.

The system, believed to be the world’s largest, will transfer energy to and from raw wastewater flowing through the deep rock mid-Toronto interceptor sewer tunnel, and aims to supply 1.8 billion kilowatt-hours of energy, approximately 90% of Toronto Western Hospital’s space heating and cooling requirements.

The distribution system includes a new watermain and new or replaced water services. These water system improvements will eliminate the boil water advisory, address the extensive system losses, and meet present and future capacity demands.

The pandemic impact on supply chains is leaving the chemical industry reeling, and rising energy costs is affecting the manufacturing and transportation industries, piling onto already sky-high prices, and creating a perfect storm of price pressures.

Whitewater Processing continues to operate the moving bed biofilm reactor system year-round with minimal air required during the summer due to the excellent ammonia reduction, and is currently in compliance with all effluent discharge limits.

Operators and water quality managers need to know at any given moment the levels of free, combined, and total chlorine in their system. Understanding these metrics and their role is the foundation of providing clean and safe drinking water.

Throughout its network of stormwater management facilities, Hamilton Water has targeted invasive species such as Phragmites, Japanese knotweed, poison ivy, wild parsnip, and…goldfish.

A frequent concern with the use of ultrasound is that the ultrasonic vibration could result in cell lysing that could release the microcystin toxins stored within the blue-green algae cell. However, new demonstrations show ultrasound does not result in cavitation, and consequently, does not lyse the blue-green algae cells.

The goal of the field study program was to collect data that could be used to assess the geotechnical elements of the lagoon and develop a plan to improve issues such as a floating liner that formed “islands” or “whales”, lagoon leakage under one of the berms, and significant subsidence of the earth berms progressing over time.

Operators at a wastewater treatment plant were faced with pumping primary sludge with a solid content of between 4.5% – 9.5%. The circumstances for pumping this product were severe, making handling and treatment difficult.

The objective was to determine whether on-site concentrations of metals posed unacceptable risks to human and/or ecological receptors, derive ecological site-specific target levels, and provide recommendations for future work. The project provides a valuable case study for currently operating mines that are actively managing environmental liabilities.

As a result of understanding the hydraulic benefits of the progressive cavity units and the reliability of centrifugal pumps, a modernized solution was developed to optimize pump performance and hydraulics – this being the dual-stage centrifugal grinder.

As a “sign of caution,” Québec has issued a temporary moratorium on biosolids imports from the U.S., as it works to establish control mechanisms and thresholds for per- and polyfluoroalkyl substances, better known as...

After lobbying for the project since 1992, the Whitesand First Nation in northwestern Ontario has finally secured $35 million in federal funding for its long-awaited biomass cogeneration facility. Whitesand officials say their Sagatay Co-Generation Limited...

Engineering researchers at Texas A&M University have developed a first-of-its-kind water monitoring technique that improves flocculation and minimizes the energy used for mixing. Coagulant chemicals are typically added to purify drinking water, remove turbidity and...

After measuring and analyzing emissions from 63 U.S. municipal wastewater treatment plants, two new studies by researchers at Princeton University show that the process used to quantify methane emissions may be  substantially underestimating the...

University of Waterloo researchers have determined that small, geographically-isolated wetlands make more efficient filters for nitrogen. The new University of Waterloo study is one of the first to utilize computer modelling and satellite data to...

Despite a late January greenlight from the federal government’s recent assessment, controversy is still following the James Bay Lithium Mine Project in Quebec over feared watershed contamination and the loss of wetlands. Galaxy Lithium Inc.’s...

The U.S. Department of Energy (DOE) is investing $18 million into research focused on the beneficial reuse of wastewater, as well as the extraction of recoverable critical minerals from wastewater or produced water, including...

Keeping tabs on project-site contaminated soil in Quebec is now mandatory under the Traces Quebec system. To comply with regulations and track all movements of the some 3 million metric tons of contaminated soil excavated...

Perhaps one of the most significant changes will be updates to the quantification methods for calculating emissions, such as methane emissions from industrial wastewater.

As British Columbia’s Ahousaht First Nation celebrates the completion of their new wastewater treatment plant, the province’s Maliview Wastewater Treatment Plant three-phase upgrade project on Salt Spring Island has received new funding. For Ahousaht First...