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October 2022 Articles

Environmental Science & Engineering Magazine’s October issue article topics include: wastewater monitoring for community health, data management for water utilities, Canadian PFAS investigation as well as treatment and removal in drinking water and groundwater, determining optimal mixing levels for wastewater treatment, advanced pressure management pilot to reduce leakage in drinking water distribution, challenges and opportunities for stormwater sediment reuse, and more…

Durham wastewater viral signal chart

Wastewater monitoring as a community health indicator

The Region of Durham partnered with Ontario Tech University to detect fragments (RNA and proteins) of COVID-19 in wastewater to help with surveillance and early detection of additional outbreaks of the disease. See their findings:
PlumeStop injection

The problem with PFAS waste incineration

The U.S. Department of Defense (DOD) released a memo placing a moratorium on the incineration of materials containing PFAS (per- and polyfluoroalkyl substances). According to the memo, the 2022 National Defense Authorization Act requires the ban until the DOD issues guidance implementing the U.S. Environmental Protection Agency’s (EPA’s) interim guidance on the destruction and disposal of PFAS. And, what does the EPA’s current interim guidance say about incinerating PFAS-containing waste? It is best summarized this way: “More research is needed.”
The patented HRS Unicus scraped surface heat exchanger

Maximizing process, energy efficiency of heat exchangers for wastewater applications

HRS Heat Exchangers’ Matt Hale examines all the considerations needed when selecting the right heat exchanger, as well as several types of exchangers most suitable for wastewater applications.
Sentryx Intelligent Network web interface

Halifax water uses advanced pressure management pilot to reduce leakages

After hitting a static level of breaks and non-revenue water (NRW) loss, for Halifax Water (HW) the challenge is increasing leak awareness to reduce run time. To help reduce NRW loss, HW partnered with Mueller for a performance trial of an advanced pressure management and control platform.
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Ensuring peace of mind against leaks when lining above ground storage tanks

Ensuring the integrity of a lined above ground storage tank can be very challenging. A recent project demonstrated that a new Canadian innovation in leak detection technology made the job a lot easier.
Utilities automation software

Using Python can help Canadian water utilities cope with vast amounts of incoming data

Infinitii ai looks at the automation of utilities using machine learning program, Python, and the development of a new automation software called face pro.
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Hamilton tackles major sanitary-stormwater cross connection problem

After discovering E.Coli in watercourses, Hamilton identified residential cross-connected sewer laterals, as a source of untreated sewage flows.
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What is the real mixing limit for mixed liquor in wastewater treatment?

Instead of accepting traditional rules-of-thumb, there is an opportunity for wastewater plant operators and design engineers to determine actual mixing requirements.
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Investigating the source and age of nitrate in drinking water wells

This case study involved an environmental isotope investigation of groundwater in a small community where the groundwater was known to be impacted by nitrate.
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Using cartridge filtration systems to remove PFAS contaminants from drinking water

End user households and municipal water utilities are increasingly grappling with the need to address PFAS once they are detected in source water.
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Decanters provide smooth operation for military base’s WWTP

The wastewater treatment plant's most important goal in dewatering was to maximize the reduction of the volume of sewage sludge.
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Mommas, don’t let your babies grow up to be meteorologists – Editorial Comment

The main debate now is whether or not humanity can halt or even rollback the damage caused by CO2 emitted through the burning of fossil fuels.
stormwater management pond

Challenges, opportunities for beneficial reuse of stormwater management pond sediment

The routine removal of accumulated sediments from stormwater management ponds is expensive, but necessary for maintaining flood control and water quality.
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UWaterloo leads new PFAS investigation into seven Ontario water systems

The University of Waterloo is leading an interdisciplinary research team that hopes to unlock key information that will inform Canadian water systems about potential PFAS contaminants and treatment options that could impact millions of...
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York Region wins award for sewage upgrades with microtunnelling technology

Ontario’s York Region is celebrating a new award that recognizes the innovative microtunnelling technology used for its Sewage System Forcemain Twinning Project. The Peter J. Marshall Innovation Award was presented to York Region earlier in...
CSA-Community-Water-Standards

CSA Group develops how-to guide for municipalities to integrate water standards

Standards development organization CSA Group has published a municipal how-to guide for local officials to maintain high community water standards in the face of growing threats from climate change. CSA says that municipalities “shoulder the...
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Report applauds wastewater surveillance, calls for more frameworks in future

A new report from the Royal Society of Canada (RSC) makes a series of recommendations based on expert analysis and lessons learned from wastewater surveillance during the COVID-19 pandemic. The report views wastewater surveillance as...