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This presentation addresses the evaluations undertaken by the EPMC IV Team (including the firms of CH2M Hill and Parsons Engineering Science, Inc.) for the Water and Sewer Authority (WASA of the District of Columbia). The evaluations addressed the technical considerations and process alternatives for the new anaerobic digestion complex at the Blue Plains Wastewater Treatment Plant. The design capacity of this facility is 370 MGD (1,400 megaliters/day) and the average design solids production rate is 330 DTPD (dry tons per day) or 300 DMTPD (dry metric tons per day). The Biosolids Management Plan was approved by the WASA Board in September 1999, and specifies that all solids shall be digested anaerobically for land application. The Plan also specifies that the anaerobic digestion process shall be capable of producing a digested biosolids that is Class A with respect to the requirements of the 40 CFR part 503 regulations of the USEPA.

Document Type: Research Article


Publication date: 2001-01-01

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