Quantitative analysis of microbial community structure in two-phase anaerobic digesters treating food wastewater

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• 作者：Woong Kim (1)
  Byung-Gon Ryu (2)
  Sungwhan Kim (1)
  Sung-Woon Heo (1)
  Donghyun Kim (1)
  Jungmin Kim (1)
  Haechan Jo (3)
  Jong-Hee Kwon (1)
  Ji-Won Yang (1) (4)
  
  1. Department of Chemical and Biomolecular Engineering ; KAIST ; 291 ; Daehak-ro ; Yuseong-gu ; Daejeon ; 305-701 ; Korea
  2. Environmental and Energy Program ; KAIST ; 291 ; Daehak-ro ; Yuseong-gu ; Daejeon ; 305-701 ; Korea
  3. Yangseo High School ; 31-12 ; Sangchon-gil ; Yangseo-myeon ; Yangpyeong-gun ; Gyeonggy ; 476-824 ; Korea
  4. Advanced Biomass R&D Center ; KAIST ; 291 ; Daehak-ro ; Yuseong-gu ; Daejeon ; 305-701 ; Korea
  
• 关键词：Food Wastewater ; Anaerobic Digestion ; Methanobacteriales ; Methanomicrobiales ; Methanosarcinales
• 刊名：Korean Journal of Chemical Engineering
• 出版年：2014
• 出版时间：March 2014
• 年：2014
• 卷：31
• 期：3
• 页码：381-385
• 全文大小：286 KB
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• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Industrial Chemistry and Chemical Engineering
  Catalysis
  Materials Science
  Biotechnology
  
• 出版者：Springer New York
• ISSN：1975-7220

文摘

An acidogenic reactor with a 0.5-L working volume and a methanogenic digester with a 5-L of working volume were operated for 150 days on a continuous mode to investigate the structure of a microbial community during food wastewater treatment. During the steady state of anaerobic digestion, volatile solids (VS) removal efficiency in the pilot plant was approximately 65%. The bacterial population was higher than any other methanogens detected during the entire anaerobic process and treatment of raw food wastewater. Methanomicrobiales (MMB), Methanosarcinales (MSL), and Methanobacteriales (MBT) were detected during digestion. The methanogenic population present in the acidogenic reactor was directly affected by the archaeal community in raw food wastewater. However, the shift of microbial community in the methanogenic digester was relatively gradual. The performance of methanogenic digester might be more related to the change of microbial metabolism affected by the physicochemical properties of the input substrate.