Continuous anaerobic digestion of food waste and design of digester with lipid removal

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	Continuous anaerobic digestion of food waste and design of digester with lipid removal
	Li, Dong1,2 ; Sun, Yongming1 ; Guo, Yanfeng 1; Yuan, Zhenhong1 ; Wang, Yao 1; Zhen, Feng1
刊名	environmental technology
	2013-07-01
卷号	34 期号:13-14 页码:2135-2143
关键词	food waste anaerobic digestion organic loading rate biogas production rate lipid removal
英文摘要	separation 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.
WOS标题词	science & technology ; life sciences & biomedicine
类目[WOS]	environmental sciences
研究领域[WOS]	environmental sciences & ecology
关键词[WOS]	municipal solid-waste ; chain fatty-acids ; sorted organic fraction ; activated-sludge ; granular sludge ; performance ; inhibition ; reactor ; water
收录类别	SCI
语种	英语
WOS记录号	WOS:000325389900044
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/10049]
专题	中国科学院广州能源研究所
作者单位	1.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
推荐引用方式 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.