Environmental Science & Engineering Magazine

Generally, the two most accurate meter technologies are static meters, which includes ultrasonic and magnetic flow meters. Both have their advantages, but the right fit will depend on the application. This makes it important to understand the pros and cons of each technology before making a purchase.

Opinion: Our industry has been messaging for years that toilets are not trash cans, but women’s toilet stalls are not provided with trash cans!

Nick Winters, director of Hamilton Water, says that “Lead plumbing material is an issue for the City of Hamilton, our residents, and our industrial, institutional and commercial customers as well. So, we knew it would take multiple approaches to identify the extent of the problem and different tactics to mitigate the effects of lead as quickly as possible.”

Maintaining an efficient and reliable sewer system is a critical task for any city. To meet these challenges, innovative technologies are being employed to streamline maintenance processes and reduce costs. One such technology is acoustic inspection, which is a fast, low-cost, and highly effective method for assessing small-diameter gravity sewer lines.

The Northwest Inner City area of Calgary has recently experienced unprecedented flooding, the most devastating of which was the Bow River flood in 2013. This significant event refocused the city’s priorities in this area on drainage improvements. In 2019, the City of Calgary initiated three community drainage improvement projects.

SPONSORED: The kīsikāw pīsim solar farm at EPCOR’s E. L. Smith Water Treatment Plant in Edmonton is an undertaking that tells us much about our past, present and future.

Accepting diapers as part of a source separated organics (SSO) program increases the participation rate, but does pose challenges and opportunities.

The project team had already instituted some flood protection measures. It reviewed the scouring at the river edge and at the well sites, as well as wellheads for evidence of breaches of flood water. The team also reviewed the aerial photos of the upper watershed for signs of new hazards and contaminants of concern.

When it comes time to invest in equipment, selecting low-maintenance sensors that resist fouling and abrasion and don’t need frequent calibrations to preserve their accuracy goes a long way toward optimizing process control. Galvanic dissolved oxygen sensors are popular for their low initial investment.

The distinct structure and functionalities of butterfly valves, coupled with their compliance with various industry standards, make them a practical choice in demanding environments.

A simple choice of material can impact the design life, function, and performance. One change that has all three beneficial outcomes for water distribution is moving from nitrile (Buna-N) to ethylene propylene diene monomer (EPDM) for valve seats.

At prototype PFAS source zones, the in situ pilot test treatments resulted in the immediate, complete, and sustained elimination of PFAS in soil leachate.