Biological nutrient removal plant for treatment of wastewater
In 2000, the Town of Taber operated its domestic wastewater treatment plant based on a rotating biological contractor treatment system.
Operational issues with the treatment system forced the Town to decommission the system and divert all its domestic wastewater to the aerated lagoons for co-treatment with the industrial wastewater. The practice resulted in the industrial lagoons not meeting the Alberta Environment discharge requirements.
The Town of Taber decided to commission an engineering study to determine the best solution for the treatment of their wastewater. Based on the recommendations presented, the Town of Taber moved forward with the construction of a new Water and Wastewater Treatment Plant.
Project Partners
- EPCOR Water Services Inc.
- Stantec
EPCOR Water Services Inc., Lockerbie Stanley Inc. and Stantec were selected to design and construct a Biological Nutrient Removal (BNR) plant capable of processing more than 20,000 cubic meters per day. The process included a primary clarifier, fermenter, BNR bioreactor, secondary clarifiers and ultraviolet disinfection. Octaform Finished Forming System was chosen as the wall system of choice for the $17M project due to its design and construction flexibility. The Octaform wall panels used to line the BNR bioreactor protected the concrete from corrosion and no extra trades were required during the construction for the three rings.
Octaform Advantages
COST SAVINGS
Octaform’s solution provided decreased total costs compared to traditional methods involving concrete and polyurethane applied membrane coatings. This cost efficiency was instrumental in keeping the project within budget.
CONSTRUCTION EFFIECIENCY
Octaform’s system significantly reduced construction time and labor requirements. The ease of installation contributed to a streamlined construction process, saving valuable time and resources.
BUILT-IN INSULATION
Octaform’s system incorporated insulation directly into the structure. This ensured optimal thermal performance, with the thermal mass of concrete on the interior of the structure and insulation on the exterior, reducing operating costs.
Outcomes
The bioreactor has provided the Town with a modern mechanical plant that uses the latest process technologies to treat the Town’s domestic wastewater. The innovative reuse of the existing infrastructure (which otherwise would have been abandoned) ensured a cost-effective and sustainable solution for the Town. The Town continues to own the water and wastewater assets, set rates and bill 3,030 customer accounts.
EPCOR Water Services Inc.
EPCOR Water Services Inc. (EWSI) provides quality water and wastewater services to more than 85 communities and industrial sites across Western Canada.
EWSI also builds, owns and operates water and wastewater facilities, working in partnership with governments, municipalities and industrial clients.
Stantec
We’re designers, engineers, scientists, and project managers, innovating together at the intersection of community, creativity, and client relationships. Balancing these priorities results in projects that advance the quality of life in communities across the globe.
With Octaform, we delivered under budget and ahead of schedule.
Conclusion
The bioreactor has provided the Town with a modern mechanical plant that uses the latest process technologies to treat the Town’s domestic wastewater. The innovative reuse of the existing infrastructure (which otherwise would have been abandoned) ensured a cost-effective and sustainable solution for the Town. The Town continues to own the water and wastewater assets, set rates and bill 3,030 customer accounts.
