Humber Wastewater Treatment Plant Update
I made a promise to residents regarding improvements and reduction of odours as a result of the Humber Wastewater Treatment Plant. I am pleased to share that there are two major improvement projects underway at the facility:
Odour Control and Process Upgrades
This project involves major upgrades to the plant headworks buildings and the construction of new odour treatment facilities. The driving force for this work is to reduce nuisance odours for neighbours by more than 90%, as well as to maintain a state of good repair. It entails:
- Construction of two biofilters and an activated carbon scrubber to treat foul air.
- Replacement of screening equipment
- Replacement of grit removal equipment
- Process control system upgrades and instrumentation upgrades
- Structural, HVAC and electrical upgrades
The project is expected to be completed this year.
Secondary Treatment Upgrades
This project involves a complete rehabilitation of the south secondary portion of the plant. This part of the plant was originally built in the 1950s and has reached the end of its useful life. The project entails:
- Demolishing and replacing all of the existing secondary treatment equipment, including aeration diffusers, piping, valves, air headers, tank covers, and final tank collector mechanisms/associated equipment.
- Replacing the phosphorus removal chemical dosing system
- Replacing the return activated sludge pumping station
- Upgrades to other systems within the project area, such as HVAC, water, electrical, etc.
- Upgrades to the process control system, including new instrumentation throughout the project area
The project is expected to be completed in 2022.
If you would like to learn more, you can view the plant's annual reports at www.toronto.ca/water.