779-2021A - Progressive DB North End Sewage Treatment Plant Upgrade: Biosolids Facilities

The Project will include upgrades to the biosolids facilities of the NEWPCC, including systems to convert sludge produced on site and hauled from the City of Winnipeg’s (the City) South End Sewage Treatment Plant (SEWPCC), the West End Sewage Treatment Plant (WEWPCC) for beneficial re-use. As such, upgrades to accept, store, treat and stabilize the sludge produced from the treatment of wastewater is required. The Project scope includes:

• installation of a hauled raw sludge receiving facility to receive sludge from the WEWPCC, and the SEWPCC
• installation of a fermentation and phosphorous release facility to store sludge and to promote the release of phosphorous;
• installation of a pre-digestion sludge treatment facility to screen, blend and equalize sludge, dewater the sludge, and thermal conditioning of the dewatered sludge through the Cambi Thermal Hydrolysis (CHT) system;
• installation of an anaerobic digestion facility to digest and store the sludge;
• installation of a biosolids processing and loading facility, including Ostara phosphorous recovery, chemical and phosphorous storage areas, dewatering centrifuges, truck loading area, area control and automation, field control station and employee amenities;
• installation of a digester gas handling facility to receive gases collected from the anaerobic digestion facility for treatment to remove moisture and hydrogen sulfide, a major cause of odors; and,
• associated works, such as yard work, tunnels, internal piping galleries, external wastewater/stormwater piping and water distribution, roads, landscaping, fire protection, etc.