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Hot Sludge Goin' In, Drier Solids Comin' Out

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Objectives of the project are to produce drier cake from the high-solids centrifuges and reduce hauling costs to the land application site. New high-solids centrifuges were installed at the Metro Wastewater Reclamation District, Denver, Colorado, in August 2003. The challenges are producing drier biosolids as well as handling, storing, and loading them for beneficial use away from the plant site. Biosolids are produced at the rate of 90 dry tons per day and hauled to the land application site in 16 truckloads daily. Dewatering performance goals are to produce biosolids with a 26 percent solids concentration using 28 pounds of polymer per dry ton from anaerobically digested blend of primary and thickened waste activated sludges.

Document Type: Research Article


Publication date: January 1, 2004

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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