Page 3 - City of Saskatoon’s $48M Wastewater Treatment Plant Upgrade Project
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he City of Saskatoon’s wasterwater treatment
plant received a $48 million upgrade that will
Tprotect the people, property, and environment
downstream from Saskatoon along the South
Saskatchewan River.
Designated as a Class 4 treatment facility, the highest
level of certification in Canada, the treatment of
wastewater is regulated by provincial and national criteria.
Digester Tank Construction
Originally built in 1971, the Plant has had numerous
improvements and expansions to meet new
environmental laws and serve the growing population of
Saskatoon.
The upgrade included the installation of a fourth digester
tank as well as improvements and upgrades to the
plantwide heating system including the installation of
new boilers, biogas treatment, and flare stacks at the
existing City of Saskatoon Wastewater Treatment Plant,
says John Lacny, Project Manager. The upgrades included
a capacity increase to the existing digester process
system and the improvements to the plant heating
system which allows the plant to reliably utilize the
biogas produced from the digester process to power the
boilers that are used to heat the entire plant.
“After completing an assessment of the Wastewater
Treatment Plant’s digester process area, it was
determined that a fourth digester tank would be required
for the plant to meet the required solids retention time for
a digester as set out by the Saskatchewan Water Security
Agency’s (WSA) sewage works design standards,” says
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