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North Toronto Treatment Plant, Process & ECAP 2 Upgrades

Recent Bennett Construction Group Project
Bennett Built
Logo representing the city of Toronto, featuring the mayor's emblem.
Contact Value: $25,702,000.00
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A construction site showcasing scaffolding and composite materials.
A variety of construction materials including metal and mesh are displayed on the site.

Scope of Work

Cast in Place construction of new electrical substation and two (2) new electrical houses

Structural repairs to lower aeration gallery and aeration tanks

Removal of venturi flow meter and installation of new 400mm magnetic flowmeter complete with motorized knife gate valve for upstream isolation

Removal of existing medium bubble diffuser system and installation of new fine bubble diffuser systems within all aeration tanks (8)

Installation of a Membrane Activated Biofilm Reactor (MABR) system including dedicated blower in Aeration Tank 1 & 2

Installation of jet mixing systems in anoxic zones of Aeration Tanks 1&2

Installation of submersible mixers complete with fine bubble diffusers in anoxic zones of aeration tanks 3-8

Removal and replacement of existing blowers with a new turbo blower system complete with upgraded control valves and air piping including main header, drop legs and air headers into each aeration tank

Installation of new WAS pumps, and reconfiguration of existing WAS piping to allow for waste sludge pumping directly to the North Toronto Trunk Sewer.

Reconfiguration of existing RAS piping to eliminate hydraulic constraints and facilitate independent operation of three separate treatment plants.

Installation of new ferrous chloride dosing pumps and piping to facilitate dual-point dosage including air piping in trench. A channel aeration mixing system to be installed in the dosing point of ferrous chloride.