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Wiarton Wastewater Treatment Plant Upgrades
Client:  Town of South Bruce Peninsula
Prime Consultant:  exp.
Value:  $7 million 

To accommodate anticipated population growth, the Wiarton WWTP upgrades will double capacity of the existing plant. In order to meet new regulation standards treatment processes included the use of a Moving Bed Biofilm Reactor (MBBR) system.

Kenaidan's scope included all civil work, construction of a new pre-treatment building, a 3-cell concrete MBBR tank, and a septage receiving station. Electrical, mechanical, instrumentation, and control was also a part of the contract. An uninterrupted power supply unit (UPS) is being installed for the existing ultraviolet (UV) disinfection system.

The MBBR technology uses polyethylene biofilm carriers, which provides a large internal surface area for the growth of microorganisms. This process manages Biological Oxygen Demand removal in the first two cells and nitrification in the third cell. The screening process, constructed ahead of the reactor cells, includes a mechanical screen, washer, and compactor.

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