Garner Road Biosolids Management Facility Upgrade - Digester Mixers Replacement - Located in the City of Niagara Falls

completed

The Garner Rd. Biosolids facility requires the construction of external mixers on the digester tanks to reduce settling. These external mixers and associated appurtenances will replace the internal mixing system process which has reached the end of its service life. There are three (3) storage tanks that contain 8,000 m³ of sanitary treatment plant sludge each. The sludge must be mixed effectively, otherwise material will settle out and stop the treatment process. The current digester mixing system has significant and ongoing maintenance problems. Not only does this cause problems with the treatment of Biosolids from Regional facilities but in addition to this, the Region has an agreement to supply 5,400 dry tonnes of de-watered biosolids annually to a local firm that produces soil amendment products, which is regulated by the Canadian Food Inspection Agency. When the Region is not able to meet the agreed upon tonnage we must pay the firm $527.37 per ton for the shortage. In summary, Niagara Region is experiencing high maintenance costs and is facing an imminent contractual agreement issue if the mixing system is not replaced.