CASE STUDY: Weston Foods

Demonstrating an on-site disruptive wastewater treatment solution


“Re-examining and improving operational practices should always be the first priority, prior to the selection and sizing of an on-site wastewater treatment system.”

Walter Kraus, Vice President, Environment & Corporate Sustainability, Weston Foods

Unable to consistently meet the biological oxygen demand (BOD) discharge requirements of the City of Toronto’s sewer use by-law, Weston Foods was facing a wastewater challenge at its recently acquired donut production facility.

New to the Canadian market was BioGill, an innovative technology, low-energy, low-cost modular system designed to treat high BOD wastewater.

Before investing in a permanent, commercial-scale system, Weston needed to ensure that the technology would meet or exceed the facility’s wastewater treatment requirements, cost effectively.


  • Introduced the client to a wastewater treatment technology with a strong potential for success under the process conditions
  • Sourced and secured financial support to pilot the technology solution at the client facility
  • Managed implementation of the demonstration project
  • Quantified the net financial impacts of the wastewater treatment solution, and calculated return on investment


  • Gained a more accurate characterization of their facility’s wastewater properties
  • Identified issues that could impact treatment effectiveness and would need to be addressed prior to the design and installation of a commercial-scale system
  • Increased their knowledge and confidence in the ability of an innovative technology to meet their operational needs and wastewater goals

Weston Foods Case Study
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