Sweete Center for Environmental Biotechnology, The Biodesign Institute at Arizona State University, 1001 S. McAllister Ave., Tempe, AZ 85287, USA.
Bioresour Technol. 2011 Aug;102(15):7272-9. doi: 10.1016/j.biortech.2011.04.088. Epub 2011 Apr 30.
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.
评估当代厌氧生物技术需要证明在可再生生物能源回收方面的可靠性能，例如甲烷 (CH(4)) 产生速率、有效去除挥发性固体 (VS) 时的 CH(4) 产率。因此，本研究旨在评估温度分相厌氧序批式反应器 (TPASBR) 系统，这是一种有前途的可持续处理城市固体废物有机部分 (OFMSW) 的方法。TPASBR 系统与传统系统、中温两段式厌氧序批式反应器系统进行了比较，后者在第一阶段的操作温度上有所不同。结果表明，TPASBR 系统在有机负荷率为 6.1gVS/L/d 时，通过序批式操作、共消化和温度分相的协同作用，可从污水污泥和食物废物的共底物中获得 44%的 VS 去除率，并产生 1.2m(3)CH(4)/m(3)(系统)/d(0.2m(3)CH(4)/kgVS(添加))。因此，高温阶段快速而平衡的厌氧代谢使 TPASBR 系统能够承受高有机负荷率，在 OFMSW 稳定化方面表现出优异的性能。
