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Improved biogas production from rice straw by co-digestion with kitchen waste and pig manure
Ye, Jingqing1,2; Li, Dong1; Sun, Yongming1; Wang, Guohui2; Yuan, Zhenhong1; Zhen, Feng1; Wang, Yao1
2013-12-01
Source PublicationWASTE MANAGEMENT
Volume33Issue:12Pages:2653-2658
AbstractIn order to investigate the effect of feedstock ratios in biogas production, anaerobic co-digestions of rice straw with kitchen waste and pig manure were carried out. A series of single-stage batch mesophilic (37 +/- 1 degrees C) anaerobic digestions were performed at a substrate concentration of 54 g/L based on volatile solids (VS). The results showed that the optimal ratio of kitchen waste, pig manure, and rice straw was 0.4:1.6:1, for which the C/N ratio was 21.7. The methane content was 45.9-70.0% and rate of VS reduction was 55.8%. The biogas yield of 674.4 L/kg VS was higher than that of the digestion of rice straw or pig manure alone by 71.67% and 10.41%, respectively. Inhibition of biogas production by volatile fatty acids (VFA) occurred when the addition of kitchen waste was greater than 26%. The VFA analysis showed that, in the reactors that successfully produced biogas, the dominant intermediate metabolites were propionate and acetate, while they were lactic acid, acetate, and propionate in the others. (C) 2013 Elsevier Ltd. All rights reserved.
SubtypeArticle
KeywordBiogas Co-digestion Kitchen Waste Rice Straw Pig Manure
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1016/j.wasman.2013.05.014
WOS Subject ExtendedEngineering ; Environmental Sciences & Ecology
WOS KeywordANAEROBIC-DIGESTION ; FOOD WASTE ; METHANE PRODUCTION ; SLAUGHTERHOUSE WASTE ; GRASS-SILAGE ; FATTY-ACIDS ; DEGRADATION ; FRACTION ; FRUIT ; RATIO
Indexed BySCI
Language英语
WOS SubjectEngineering, Environmental ; Environmental Sciences
WOS IDWOS:000328309400009
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10053
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
2.Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangzhou 510275, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Ye, Jingqing,Li, Dong,Sun, Yongming,et al. Improved biogas production from rice straw by co-digestion with kitchen waste and pig manure[J]. WASTE MANAGEMENT,2013,33(12):2653-2658.
APA Ye, Jingqing.,Li, Dong.,Sun, Yongming.,Wang, Guohui.,Yuan, Zhenhong.,...&Wang, Yao.(2013).Improved biogas production from rice straw by co-digestion with kitchen waste and pig manure.WASTE MANAGEMENT,33(12),2653-2658.
MLA Ye, Jingqing,et al."Improved biogas production from rice straw by co-digestion with kitchen waste and pig manure".WASTE MANAGEMENT 33.12(2013):2653-2658.
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