期刊
JOURNAL OF CLEANER PRODUCTION
卷 188, 期 -, 页码 556-567出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2018.03.289
关键词
Bio-electrochemical anaerobic digestion; Psychrophilic methanogenesis; Stainless steel; Organic loading rate; Archaeal community
资金
- Human Resources Training Program for Regional Innovation and Creativity through Ministry of Education and National Research Foundation of Korea [NRF-2015H1C1A1035673]
- intramural research grant of Chungbuk National University
Psychrophilic bio-electrochemical anaerobic digestion (PBEAD) is a promising new technology for improving methane production at low temperatures via supply of low energy. In this study, a PBEAD reactor operating at 19.8 +/- 2.9 degrees C equipped with a low-cost stainless steel (SUS304) rotating impeller electrode was manufactured to observe the efficiency of methane production and changes in archaeal communities at a high organic loading rate (OLR). Stable methane production was achieved without VFA accumulation and pH decrease in the PBEAD reactor up to an OLR of 4.5 kg/m(3).d owing to H-2-dependent methylotrophic and hydrogenotrophic methanogens, which converted H-2 into methane. In the case of an OLR of 6.0 kg/m(3).d, methane production decreased significantly due to decreased pH and accumulated VFAs, but recovered on increasing the alkalinity. The maximum energy efficiency of 71.7% confirmed the high performance of the PBEAD reactor equipped with an SUS304 rotating impeller electrode. (C) 2018 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据