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题名:
Improvement of Solid-State Anaerobic Digestion of Yard Waste by Co-digestion and pH Adjustment
作者: Zhang, Guangyi1; Zhang, Zhikai2; Li, Chunxing3
刊名: WASTE AND BIOMASS VALORIZATION
出版日期: 2018-02-01
卷号: 9, 期号:2, 页码:211-221
关键词: Solid-state anaerobic digestion ; Yard waste ; Food waste ; Biogas ; Methane
收录类别: SCI
WOS记录号: WOS:000423154900005
DOI: 10.1007/s12649-016-9798-4
文章类型: Article
英文摘要: To make clear the feasibility of controlled anaerobic digestion (AD) of organic fraction of municipal solid waste being implemented at transfer stations prior to their final disposal, the performance of solid-state AD (SSAD) of yard waste (YW) as well as the improvement by its co-digestion with food waste (FW) in combination with the aid of pH adjustment were investigated by conducting batch SSAD experiments. The results showed that AD of YW with high solid contents easily caused difficulties in the initiation stage due to accumulation of volatile fatty acids. Even with the aid of alkali to successfully initiate the initiation stage, the AD of YW with the high solid content of 29% generated such a low biogas yield as 207 mL/g VS. By contrast, co-digestion of YW and FW with pH adjustment gave the highest biogas and methane yields of 306 and 180 mL/g VS, 47.8 and 40.3% higher than those for AD of YW alone, respectively. A sufficiently long acidogenesis duration was helpful for biogas production, while the inhibitions from excessively high ammonia nitrogen concentrations and organic loading rates were apt to happen after extremely long acidogenesis durations. For co-digestion of YW and FW, adding proper amounts of alkali (CaO) on the 3rd days resluted in the best performance.
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]: BIOGAS PRODUCTION ; AMMONIA INHIBITION ; DRY DIGESTION ; KINETIC-MODEL ; FOOD WASTE ; METHANE ; GENERATION ; FERMENTATION ; OPTIMIZATION ; PRETREATMENT
项目资助者: National Natural Science Foundation of China-China(21161140329) ; Japanese-China Research Cooperative Program-China(S2016G6267) ; National Key Technology Research and Development Program-China(2012BAC03B05)
语种: 英语
ISSN号: 1877-2641
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ipe.ac.cn/handle/122111/23584
Appears in Collections:多相复杂系统国家重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Hebei GEO Univ, Sch Water Resources & Environm, Shijiazhuang 050031, Hebei, Peoples R China
3.Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Pollutant Convers, Xiamen 36102, Fujian, Peoples R China

Recommended Citation:
Zhang, Guangyi,Zhang, Zhikai,Li, Chunxing. Improvement of Solid-State Anaerobic Digestion of Yard Waste by Co-digestion and pH Adjustment[J]. WASTE AND BIOMASS VALORIZATION,2018,9(2):211-221.
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