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Clover Bar Nutrient Recovery Facility

Canada's largest wastewater nutrient recovery facility

  • 1,000

    Bags Per Year

  • $18M

    Construction Value

  • Edmonton, Alberta

    Edmonton, Alberta

Protecting sensitive ecosystems and creating a marketable product from waste

In the City of Edmonton, sewage flows to the Gold Bar Wastewater Treatment plant. When EPCOR, the utility company, was looking for an opportunity to improve the treatment process, they considered additional uses for the wastewater. That’s where the Clover Bar nutrient recovery facility came in. 

Working alongside EPCOR and the technology vendor, Ostara, we reviewed a nutrient recovery process to make sure that it made sense in this case. After that, we completed project coordination, as well as civil, structural, architectural, mechanical, and control services for a lagoon pumphouse expansion and the nutrient recovery process building and site.

In practice, the Clover Bar nutrient recovery facility takes in the Gold Bar wastewater and—using Ostara’s Pearl® process—recovers nutrients, turning them into pellets of slow-release fertilizer called Crystal Green®. The facility produces 1,000 one-ton bags of fertilizer per year that EPCOR sells to farmers. 

Besides creating a marketable product from waste, this facility also protects sensitive ecosystems. These nutrients, if discharged to receiving water bodies in excess, cause significant increases in plant and algae growth, negatively impacting fish and other aquatic life. 

At a Glance

Offices
Client
  • EPCOR
Partners
  • Ostara Nutrient Technologies
Meet Our Team

Ryan Roberts, Senior Vice President, Water Project Delivery

I believe project success is achieved through open, honest communication and a clear understanding of client expectations and deliverables.
Ryan Roberts Senior Vice President, Water Project Delivery Read More

Rob Simm, Senior Vice President, Emergent Sector Leader

Sewage should no longer be viewed as only a waste product. From energy generation to fertilizer production, I help our clients maximize the potential of their wastewater.
Rob Simm Senior Vice President, Emergent Sector Leader Read More

Francis Rozsa, Principal, Water

Water is our most valuable resource, and we must strive to find better ways to protect it.

Ryan Roberts

Senior Vice President, Water Project Delivery

Rob Simm

Senior Vice President, Emergent Sector Leader

Francis Rozsa

Principal, Water

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