Influence of inoculum to substrate ratios (ISRs) on the performance of anaerobic digestion of algal residues
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- 作者：Yan Li (1) (2)
Dongliang Hua (1) (2)
Jie Zhang (1) (2)
Mintian Gao (3)
Yuxiao Zhao (1) (2)
Haipeng Xu (1) (2)
Xiaohui Liang (1) (2)
Fuqiang Jin (1) (2)
Xiaodong Zhang (1) (2) - 关键词：ISRs ; Algal residues ; Anaerobic digestion ; Methane
- 刊名：Annals of Microbiology
- 出版年：2014
- 出版时间：September 2014
- 年：2014
- 卷：64
- 期：3
- 页码：955-960
- 全文大小：259 KB
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Dongliang Hua (1) (2)
Jie Zhang (1) (2)
Mintian Gao (3)
Yuxiao Zhao (1) (2)
Haipeng Xu (1) (2)
Xiaohui Liang (1) (2)
Fuqiang Jin (1) (2)
Xiaodong Zhang (1) (2)
1. Key Laboratory for Biomass Gasification Technology of Shandong Province, Jinan, 250014, China
2. Energy Research Institute of Shandong Academy of Sciences, Jinan, 250014, China
3. Biomass Refinery Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Higashi-hiroshima, Japan - ISSN：1869-2044
文摘
With increasing concerns of microalgal-biodiesel, algal residues after lipid extraction are raising great attention for energy production. A batch test of 15?days under mesophilic condition was conducted to evaluate the effects of inoculum to substrate ratios (ISRs) on the methane production by anaerobic digestion of Chlorella sp. residue. The stability and progress of the reaction from algal residue to methane were monitored by measuring the pH, volatile fatty acids (VFAs), total ammoniacal nitrogen (TAN), methane volume on a daily basis. The results indicated that the values obtained were 26.6, 191.6, 195.6 and 210.6?ml CH4/g volatile solid (VS) for ISRs of 1:2, 1:1, 2:1 and 3:1. The methane production was significantly decreased as the ISR was lower than 1:1, which was resulting from the poor methanogenesis inhibited by NH4 +-N. It would be of great importance that determination of ISRs might provide useful information on how to initialize a batch digester with algal residue as material.