If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email firstname.lastname@example.org
This paper provides an overview of a 2-year project sponsored by the Water Environment Research Foundation. The objective of the study was to produce a spreadsheet model incorporating a life cycle costing (LCC) approach for evaluating the economic viability of anaerobic digestion, biogas
pretreatment and energy recovery systems. Detailed surveys completed by 42 treatment facilities were used to derive technical and economic functions used in the spreadsheet model. An analysis of economic factors indicated that the economic viability of recovering energy from digester gas was
most sensitive to the price of purchase electricity and the O&M costs of a digester gas pretreatment system. Compared to baseline operation with a mesophilic digester, operation of a combined heat and power process such as engine-generators, microturbines or direct drive units, in conjunction
with thermophilic anaerobic digestion, should be economically feasible when the price of purchased electricity is 0.09/kWh. Several potential applications of the spreadsheet model are suggested.
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 These proceedings are not peer reviewed. WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.