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Bioresour Technol

Title:		A comparison study on the high-rate co-digestion of sewage sludge and food waste using a temperature-phased anaerobic sequencing batch reactor system
Author(s):		Kim HW; Nam JY; Shin HS;
Address:		"Sweete Center for Environmental Biotechnology, The Biodesign Institute at Arizona State University, 1001 S. McAllister Ave., Tempe, AZ 85287, USA"
Journal Title:		Bioresour Technol
Year:		2011
Volume:		20110430
Issue:		15
Page Number:		7272 - 7279
DOI:		10.1016/j.biortech.2011.04.088
ISSN/ISBN:		1873-2976 (Electronic) 0960-8524 (Linking)
Abstract:		"Assessing contemporary anaerobic biotechnologies requires proofs on reliable performance in terms of renewable bioenergy recovery such as methane (CH(4)) production rate, CH(4) yield while removing volatile solid (VS) effectively. This study, therefore, aims to evaluate temperature-phased anaerobic sequencing batch reactor (TPASBR) system that is a promising approach for the sustainable treatment of organic fraction of municipal solid wastes (OFMSW). TPASBR system is compared with a conventional system, mesophilic two-stage anaerobic sequencing batch reactor system, which differs in operating temperature of 1st-stage. Results demonstrate that TPASBR system can obtain 44% VS removal from co-substrate of sewage sludge and food waste while producing 1.2m(3)CH(4)/m(3)(system)/d (0.2m(3)CH(4)/kgVS(added)) at organic loading rate of 6.1gVS/L/d through the synergy of sequencing-batch operation, co-digestion, and temperature-phasing. Consequently, the rapid and balanced anaerobic metabolism at thermophilic stage makes TPASBR system to afford high organic loading rate showing superior performance on OFMSW stabilization"
Keywords:		"Anaerobiosis Biodegradation, Environmental Bioreactors/*microbiology Biotechnology/*instrumentation/*methods *Food Methane/biosynthesis Nitrogen/analysis Quaternary Ammonium Compounds/analysis Sewage/*microbiology *Temperature Volatilization Waste Disposa;"
Notes:		"MedlineKim, Hyun-Woo Nam, Joo-Youn Shin, Hang-Sik eng Comparative Study Research Support, Non-U.S. Gov't England 2011/05/24 Bioresour Technol. 2011 Aug; 102(15):7272-9. doi: 10.1016/j.biortech.2011.04.088. Epub 2011 Apr 30"