期刊
BIORESOURCE TECHNOLOGY
卷 186, 期 -, 页码 338-342出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.03.086
关键词
Vinegar residue; Anaerobic digestion; Continuously stirred tank reactor; Organic loading rate; Effluent recirculation
资金
- National Key Technology Support Program of China [2012BAC25B06]
- National Hi-tech R&D Program of China (863 Program) [2012AA101803]
- Promotion Project in Life Sciences, BUCT
Anaerobic digestion (AD) of vinegar residue was investigated in continuously stirred tank reactor (CSTR). The influence of organic loading rate (OLR) and effluent recirculation on AD performance of vinegar residue was tested. Five OLRs, 1.0, 1.5, 2.0, 2.5, and 3.0 g(vs) L-1 d(-1), were used. The highest volumetric methane productivity of 581.88 mL L-1 was achieved at OLR of 2.5 g(vs) L-1 d(-1). Effluent reflux ratio was set as 50%, the results showed that effluent recirculation could effectively neutralize the acidity of vinegar residue, raise the pH of the feedstock, and enhance the buffering capacity of the AD system. Anaerobic digestion of vinegar residue could be a promising way not only for converting this waste into gas energy but also alleviating environmental pollution which might be useful for future industrial application. (C) 2015 Elsevier Ltd. All rights reserved.
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