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Case studies of sewage treatment with recovery of energy from methane [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1993.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
101 pages : digital, PDF file
Additional Creators
United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
In the Southeast, there are about 3,000 wastewater plants with a capacity of over one million gallons per day. Under this study, operating data and available financial information on a variety of technologies for large and small plans was documented for ten facilities. Studies were done on wastewater treatment plants (WWTPs) with design capacities ranging from 9.5--120 million gallons per day. All of these WWTPs recover the gas produced in their anaerobic digesters and use at least part of it as fuel for boilers and/or internal combustion engines. The engines power generators, blowers, or pumps, and most are equipped with heat recovery systems. Based on the historical data provided by the participants in this study and from the authors` own technical analysis, methane recovery and utilization systems appear to be cost effective, although the degree of cost effectiveness varies widely. The types of energy recovery systems are not uniform among all the participants so that the cases in this limited survey are not precisely comparable to each other. Also, reliance on historical data and cost information generated from portions of total plant operations and estimates makes it difficult to complete analysis of specific variables. The fact remains, however, that regardless of the individual type(s) of digester gas energy recovery system in use, data from seven of the ten participants reflected annual savings ranging from $67,200 to more than $700,000. Further, Wander Associates current analysis reflects that nine of the ten realized annual savings ranging from $5,000 to more than $600,000.
Report Numbers
E 1.99:tva/nferc--93/8
E 1.99: z--347
z--347
tva/nferc--93/8
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
06/30/1993.
"tva/nferc--93/8"
" z--347"
"DE95001719"
Phillips, C.A.; Webster, N.; Wander, J.
Wander Associates (United States)
Type of Report and Period Covered Note
Topical; 06/01/1993 - 06/01/1993
Funding Information
AI01-93CE16078
View MARC record | catkey: 13819425