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Improvement of Solid-State Anaerobic Digestion of Yard Waste by Co-digestion and pH Adjustment
Zhang, Guangyi1; Zhang, Zhikai2; Li, Chunxing3
2018-02-01
Source PublicationWASTE AND BIOMASS VALORIZATION
ISSN1877-2641
Volume9Issue:2Pages:211-221
AbstractTo 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.
KeywordSolid-state Anaerobic Digestion Yard Waste Food Waste Biogas Methane
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s12649-016-9798-4
Indexed BySCI
Language英语
WOS KeywordBIOGAS PRODUCTION ; AMMONIA INHIBITION ; DRY DIGESTION ; KINETIC-MODEL ; FOOD WASTE ; METHANE ; GENERATION ; FERMENTATION ; OPTIMIZATION ; PRETREATMENT
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
Funding OrganizationNational Natural Science Foundation of China-China(21161140329) ; Japanese-China Research Cooperative Program-China(S2016G6267) ; National Key Technology Research and Development Program-China(2012BAC03B05)
WOS IDWOS:000423154900005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/23584
Collection多相复杂系统国家重点实验室
Affiliation1.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
GB/T 7714
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.
APA Zhang, Guangyi,Zhang, Zhikai,&Li, Chunxing.(2018).Improvement of Solid-State Anaerobic Digestion of Yard Waste by Co-digestion and pH Adjustment.WASTE AND BIOMASS VALORIZATION,9(2),211-221.
MLA Zhang, Guangyi,et al."Improvement of Solid-State Anaerobic Digestion of Yard Waste by Co-digestion and pH Adjustment".WASTE AND BIOMASS VALORIZATION 9.2(2018):211-221.
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