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A process combining hydrothermal pretreatment, anaerobic digestion and pyrolysis for sewage sludge dewatering and co-production of biogas and biochar: Pilot-scale verification
Li, Chunxing1; Wang, Xingdong1; Zhang, Guangyi2; Li, Jie1; Li, Zhiwei1; Yu, Guangwei1; Wang, Yin1
2018-04-01
Source PublicationBIORESOURCE TECHNOLOGY
ISSN0960-8524
Volume254Pages:187-193
AbstractTo fully dispose of/utilize sewage sludge, a process combing hydrothermal pretreatment (HTPT), anaerobic digestion (AD) and pyrolysis was developed and tested at the pilot scale. First, the improvement in sludge dewaterability by HTPT at 180 degrees C for 30 min was verified, and the water content decreased from 85 to 33 wt% after filter pressing. Then, the resulting filtrate underwent continuous mesophilic (37 +/- 2 degrees C) AD in an up-flow anaerobic sludge bed (UASB) reactor for producing biogas to compensate for the energy required for HTPT. Meanwhile, the filter cake was pyrolyzed in a rotary furnace (600 +/- 50 degrees C) to generate biochar, and heavy metals were well immobilized in the biochar. Finally, the material/energy balance made according to the pilot data showed that the proposed process was effective for full resource reuse of sewage sludge.
KeywordSewage Sludge Hydrothermal Pretreatment Anaerobic Digestion Pyrolysis Heavy Metal Energy Balance
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.biortech.2018.01.045
Indexed BySCI
Language英语
WOS KeywordWASTE-ACTIVATED-SLUDGE ; EXTRACELLULAR POLYMERIC SUBSTANCES ; HEAVY-METALS ; TRANSFORMATION BEHAVIOR ; SEQUENTIAL EXTRACTION ; AMMONIA INHIBITION ; RISK-ASSESSMENT ; LIQUEFACTION ; MIGRATION ; TEMPERATURE
WOS Research AreaAgriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS SubjectAgricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
Funding OrganizationNational Natural Science Foundation of China - China(41373092) ; China - Japanese Research Cooperative Program - China(2016YFE0118000) ; Industry Leading Key Projects of Fujian Province - China(2015H0044) ; Scientific and Technology Major Special Project of Tianjin City(16YFXTSF00420) ; Key Project of Young Talent of IUE, CAS - China(IUEZD201402)
WOS IDWOS:000426436100025
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24008
Collection多相复杂系统国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Pollutant Convers, Xiamen 36102, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Li, Chunxing,Wang, Xingdong,Zhang, Guangyi,et al. A process combining hydrothermal pretreatment, anaerobic digestion and pyrolysis for sewage sludge dewatering and co-production of biogas and biochar: Pilot-scale verification[J]. BIORESOURCE TECHNOLOGY,2018,254:187-193.
APA Li, Chunxing.,Wang, Xingdong.,Zhang, Guangyi.,Li, Jie.,Li, Zhiwei.,...&Wang, Yin.(2018).A process combining hydrothermal pretreatment, anaerobic digestion and pyrolysis for sewage sludge dewatering and co-production of biogas and biochar: Pilot-scale verification.BIORESOURCE TECHNOLOGY,254,187-193.
MLA Li, Chunxing,et al."A process combining hydrothermal pretreatment, anaerobic digestion and pyrolysis for sewage sludge dewatering and co-production of biogas and biochar: Pilot-scale verification".BIORESOURCE TECHNOLOGY 254(2018):187-193.
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