Stickney Sludge Building
The Stickney Treatment plant is the world's largest waste water treatment facility, handling 1.2 billion gallons per day and serving 2.4 million people in a 260 square mile area including the central part of Chicago and 43 suburban communities. Odor control from the gravity thickening building is achieved by transferring air to a 20,000 sf cast-in-place biofilter building which will contain 112,000 cubic feet of filter media that absorbs and eliminates the odorous air passing through the 9-foot deep media beds.

Since the plant must remain in operation, the entire construction process has to be precisely sequenced to minimize any impact on existing plant operations. Any interruption in service would negatively impact the City of Chicago's sewage system.

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