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ES&E Magazine – October 2020

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Environmental Science & Engineering Magazine’s October 2020 issue includes ongoing coverage of how COVID-19 is affecting water systems and wastewater operators. Article topics include improving testing accuracy for viruses in wastewater, real-time CSO monitoring, removing PFAS and EDCs from leachate and industrial effluents, using software to ensure WWTP compliance and streamline reporting requirements, using ROVs to inspect water storage tanks; and more.

EWACT Canary

Canadian company patents world’s first electrified water and current tester

New lightweight, handheld tool is a potentially life-saving piece of equipment, capable of measuring electricity up to 600 volts AC passing through fluids or water, giving water and wastewater treatment plant operators, first responders, hydro workers, municipal workers, marina and pool staff the ability to check for electrical energy and stray current or power.

Keeping workers safer when transferring flammable and combustible liquids

Protecting workers from harm includes proper safety training, the use of personal protective equipment (PPE), and the use of engineering controls to prevent dangerous spills.
landfills synthetic clay liners

low-energy extraction wells for removing contaminant plumes originating from lined landfills

In some low hydraulic conductivity settings, using one or more low-capacity wells could be advantageous, by decreasing the chance of excessive drawdown associated with higher capacity wells.
Results of LNAPL mobility testing

How natural processes are changing the way we manage petroleum contamination

Most of the petroleum non-aqueous phase liquid at the majority of contaminated sites is expected to exist in residual form that remains largely unrecoverable via conventional remediation techniques.
Modern ROVs in water tank

Using ROVs to inspect water storage tanks offers many benefits

Benefits of using an ROV for water tank inspections go beyond their technical basics.

Managing invasive aquatic species starts with good data

Managing hydrilla through delineation with the right mix of traditional and leading-edge technology.

Hamilton reduces non-revenue water loss with a proactive leak detection program

Due to success of the pilot, the city will be putting out a request for technology to establish a long-term proactive leak detection program to ensure that all water distribution systems are assessed annually.

Software helps ensure WWTP compliance while streamlining reporting requirements

By automatically integrating change of regulations in the cloud environment, Sanitation District No. 1 is able to keep on top of changing regulations without involving IT for software updates.
Environment PFAS

B.C. company’s technology removes PFAS and EDCs from leachate and industrial effluents

New research by the non-profit Environmental Working Group shows PFAS are prevalent in municipal tap water.
Speece cones

Harbour expansion project created numerous environmental challenges

The Savannah Harbor Expansion Project has been in the works for years. By deepening the 14-metre-wide river channel by 1.5 metres, ships will be able to carry more cargo along the 64 km Savannah...
Brick mortar

Careful planning required to deal with asbestos during facade renovations

By Hassan Ktaech While even the most experienced commercial construction and renovation companies may be well versed in how to remove asbestos safely from walls, ceilings, and other areas, many are unaware that brick mortar...
CSO monitoring schematic

Real-time monitoring can quantify the amount of overflow and water quality

Anticipated technical and financial challenges have encouraged municipalities to develop real-time monitoring systems that can evaluate the current infrastructure, optimize development in combined sewer systems and control water pollution.
Cross section of potable water piping.

Managing unused potable water systems during the pandemic

A water system that is in a low-flow condition presents a potential for the development of biofilm and the amplification of potentially harmful bacteria.

Improved plumbing designs could boost testing accuracy for viruses in wastewater

As the world experiences what some see as the “new normal”, GHD is working with Envision to learn from the ongoing pandemic and consider ways that design could help people that may be in similar situations in the future.
Steve Davey Editorial Comment

New book outlines economic solutions for a planet in crisis

Rejecting the old left wing/right wing ideologies, Tom Rand, author of Climate Capitalism: Economic Solutions for a Planet in Crisis, believes a more pragmatic view capable of delivering practical solutions to this critical problem is needed.

Ontario’s new regulation on excess soil highlights new in-demand skills

Ontario’s new excess soil regulation points to skills that will be in demand in the future. With the increased density of cities and the popularity of high-rise living, there has been a growing volume of excavated soil.

New studies warn of denim’s lasting impact through wastewater

Two new studies with connections to the University of Toronto have detailed the troublesome environmental footprints that blue jeans — one of the most popular and durable garments on Earth — have been leaving...
Flint Water Treatment Plant sign

Michigan settles Flint lead water crisis, assures nearly $600M going to affected children

A new $600-million preliminary civil settlement announced in Flint, Michigan, will see the state pay some 80% of the money to children who were under 18 at the time of the lead-tainted tap water...

Cities may find watering restrictions not as effective as assumed, study says

When researchers at the University of Waterloo analyzed more than a decade of data from 10 mid-sized Canadian cities that restrict outdoor water use and compared them with five cities that don’t impose limits,...
COVID-19 Wastewater Risk Cover

New WEF report suggests ‘low’ COVID-19 risk for wastewater workers, but calls for further...

A blue-ribbon panel of 16 wastewater sector experts that convened in April has determined in a new report that the occupational risk of COVID-19 infection for wastewater workers is low, but also identified the...

Two-year study grades Canada ‘C’ for flood preparedness

Canada’s provinces and territories have received a flood preparedness grade of “C”, following a two-year national study led by the University of Waterloo. The university’s Intact Centre on Climate Adaptation surveyed 139 provincial and territorial...
flooding in Taber Alberta

Alberta gets another funding injection for array of water projects

A series of new projects will be underway in Alberta, ranging from a new carbon dioxide injector pump, to the expansion of wastewater treatment systems, to implementing moving bed biofilm reactor technology recently tested...
Sampling Chippewa Lake

Israeli-made algaecide making strides in fight against toxic algal blooms

Proprietary algaecide developed by Israeli-based cleantech company is creating significant drops in toxic cyanobacteria species that contaminates lakes worldwide.
Lead pipes

Thunder Bay offers loans for lead pipe replacement as COVID-19 backlogs water testing

Ontario City of Thunder Bay has approved an interest-free loan program for property owners to replace privately-owned water service pipes made of lead.