Wastewater

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A peristaltic pump.

Finding the right dosing pump for water and wastewater treatment processes

Both diaphragm or peristaltic chemical metering/dosing pumps are positive displacement pumps, but they work in very different ways. A question often asked is which of these pump types will be the most effective and reliable?
Hydro excavation slurry

Hydro excavation waste slurries should no longer be a worry

Hydro excavation, also known as daylighting, trenchless digging, and non-destructive digging results in slurry, made up of 60% water and 40% solids. This type of byproduct is difficult and expensive to deal with, especially if the intention is to dump it at a landfill site, due to its solid/liquid state and weight.
MBBR system

Biofilm technology improves wastewater treatment in cold weather lagoons

An MBBR system is versatile and can be used to provide consistent ammonia removal throughout the year, as demonstrated by many pilot studies and full-scale applications.
Pine Creek Wastewater Treatment Plant

Calgary wastewater treatment plant can achieve energy-neutral status

To reduce energy use, Associated Engineering reviewed the treatment processes and compared them to less energy-intensive options, with the potential for improved biogas production. For energy recovery, the team conducted an in-depth analysis of cogeneration, the process of converting gas to electricity and heat.
Wood pulp to paper

Validating real-time monitoring platform to detect pulp and paper black liquor discharge events

Black liquor spills can subject a system to periods of upset conditions and could potentially push the total BOD loading beyond the plant’s aeration capacity, leading to potential permit violations.
Radio path studies

SCADA communications network enables remote operations in Wood Buffalo

The project was developed in three stages. Stage one was to develop a SCADA master plan for the municipality, including developing a network plan for every water and wastewater facility.
Ramara Water Infrastructure

Ramara outsources water, wastewater services to OCWA

Ramara Township, just northeast of Barrie, Ontario, has voted in support of outsourcing the community’s water and wastewater services to the Ontario Clean Water...
Woodward tertiary treatment construction

Hamilton discovers PCBs during WWTP upgrades, biosolids project nears completion

The City of Hamilton has experienced further delays on its massive wastewater treatment plant upgrades after discovering a “significant amount” of polychlorinated biphenyl (PCBs)...
CRD residuals treatment facility construction

Capital Regional District wastewater project set to finish construction by summer’s end

After nearly four years of construction, a group of 600 construction workers are busy entering the final stretch of construction for British Columbia’s massive...
water supply and treatment facilities

Alberta grants $150M for 55 water, wastewater projects in small municipalities

$137 million is allocated for improvements to water supply, treatment facilities, upgrades to wastewater services such as lagoons, berms, sewage treatment.

Latest Articles

cotton field image

Fashion and textile industries need greater focus on water pollution, report...

A new report warns that the apparel and textiles sector has a vital role to play in reducing water pollution, but less than half...
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