Hot Sludge Goin' In, Drier Solids Comin' Out
Abstract: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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