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Domes Removed At Wastewater Plant

Domes Removed At Wastewater Plant

Workers inspect the edge of a dome as a crain lifts the huge 37,000 pound dome of a trickling filter at the Metropolitan Sewer District Bissell Point Wastewater Treatment Plant in St. Louis on Monday, May 10, 2021. The trickling filters, which are roughly 30 years old, are being rehabbed. A trickling filter is the first stage of wastewater treatment. Photo by Bill Greenblatt/UPI