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Continuous anaerobic digestion of food waste and design of digester with lipid removal
Li, Dong1,2; Sun, Yongming1; Guo, Yanfeng1; Yuan, Zhenhong1; Wang, Yao1; Zhen, Feng1
2013-07-01
Source PublicationENVIRONMENTAL TECHNOLOGY
Volume34Issue:13-14Pages:2135-2143
AbstractSeparation of municipal solid waste has been implemented in many cities in China. As a major component of municipal solid waste, food waste can be treated by anaerobic digestion (AD) for energy production. To provide reference data for disposing of food waste through engineering applications, continuous AD was carried out under various organic loading rates (OLRs) at 27 +/- 2 degrees C in the laboratory. The anaerobic reactor was stable with pH 7.0-7.1, total volatile fatty acid (VFA) concentrations of 206-746mg/L, and NH4+ - N concentrations of 525-1293mg/L when the OLR was 1.118-5.588kg volatile solids (VS)/m(3)d. The maximum volumetric biogas production rate was 4.41L/Ld when the OLR was increased to 5.588kgVS/m(3)d with a hydraulic retention time of 30 d. When the OLR was increased to 6.706 and 8.382kgVS/m(3)d, biogas production was seriously inhibited by VFAs, with maximum total VFA and propionate concentrations of 8738mg/L and 2864mg/L, respectively. Due to the incomplete degradation of lipids, the specific methane production rate of 353-488L/kg VS accounted for 55.2-76.3% of the theoretical methane potential calculated based on the component composition. A retrofitted anaerobic digester with lipid removal was designed to improve the efficiency.
SubtypeArticle
KeywordFood Waste Anaerobic Digestion Organic Loading Rate Biogas Production Rate Lipid Removal
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1080/09593330.2013.808237
WOS Subject ExtendedEnvironmental Sciences & Ecology
WOS KeywordMUNICIPAL SOLID-WASTE ; CHAIN FATTY-ACIDS ; SORTED ORGANIC FRACTION ; ACTIVATED-SLUDGE ; GRANULAR SLUDGE ; PERFORMANCE ; INHIBITION ; REACTOR ; WATER
Indexed BySCI
Language英语
WOS SubjectEnvironmental Sciences
WOS IDWOS:000325389900044
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10049
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou, Guangdong, Peoples R China
2.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou, Guangdong, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li, Dong,Sun, Yongming,Guo, Yanfeng,et al. Continuous anaerobic digestion of food waste and design of digester with lipid removal[J]. ENVIRONMENTAL TECHNOLOGY,2013,34(13-14):2135-2143.
APA Li, Dong,Sun, Yongming,Guo, Yanfeng,Yuan, Zhenhong,Wang, Yao,&Zhen, Feng.(2013).Continuous anaerobic digestion of food waste and design of digester with lipid removal.ENVIRONMENTAL TECHNOLOGY,34(13-14),2135-2143.
MLA Li, Dong,et al."Continuous anaerobic digestion of food waste and design of digester with lipid removal".ENVIRONMENTAL TECHNOLOGY 34.13-14(2013):2135-2143.
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