The design of Headingley’s wastewater treatment facility earned an award for Stantec’s staff in Winnipeg.
The Association of Consulting Engineering Companies (ACEC) - Manitoba presented Stantec with an Award of Merit in the environmental category. The facility was built by Penn-Co Construction.
The treatment facility was opened in July 2011 after Headingley council decided the existing sewage disposal system, which included septic fields, had to be upgraded as the municipality continued to grow.
Public works supervisor Peter Barenz said leaking septic fields posed an environmental concern and pollution danger in the Assiniboine River.
A low-pressure sewage system was constructed with pipes to all houses to convey liquid waste to the plant located west of the Headingley town site. The settled solids from the septic tanks are pumped out annually.
Treatment plant manager Colin Allingham said the low-pressure system causes a build-up of hydrogen sulfide, which makes it harder to reduce the sewage’s nitrogen level to one which is environmentally acceptable.
Stantec’s design had to incorporate equipment and processes to correct this problem.
"It’s a state-of-the-art facility that incorporates sequencing batch reactors, aerobic digestion and ultra-violet disinfection," said Allingham.
A sophisticated control system notifies him of any problems and even allows him to correct them from his Winnipeg home.
The treatment facility was built with plenty of extra capacity to meet the needs of a growing number of Headingley residents.