Metabolic Fingerprinting of Food Wastewater Treatment System

식품폐수 처리 단계별 미생물 대사지문

  • Yoo, Ki-Hwan (Department of Bioscience and Biotechnology, Silla University) ;
  • Lee, Sang-Hyeon (Department of Bioscience and Biotechnology, Silla University) ;
  • Lee, Dong-Geun (Department of Bioscience and Biotechnology, Silla University)
  • Published : 2008.08.30


To determine structure and activities of microbial communities in a food wastewater treatment system, biofilm of RABC (rotating activated Bacillus contactor) and samples of aeration tanks were analyzed. Heterotrophic bacterial concentrations were similar between biofilm and stage 1 aeration tank and decreased 2-log at stage 3 aeration tank as dissolved oxygen decreased, however portions of Bacillus groups were increased at stage 3 aeration tank. It was revealed by quantitative and qualitative analysis of metabolic fingerprinting patterns of Biolog GN2 plate that RABC represented much higher activities and a different microbial community structure compared to aeration tanks. Metabolic fingerprinting showed the carbon sources that isolated Bacillus groups could or could not use, were used similarly meaning that not only Bacillus groups but also other microbial groups would contribute to the treatment of wastewater.


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