Environmental Engineering Research

  • 제10권4호
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  • Pages.191-198
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  • 2005
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  • 1226-1025(pISSN)
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  • 2005-968X(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
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MATHEMATICAL MODEL OF SULFUR UTILIZING AUTOTROPHIC DENITRIFICATION IN AN UP-FLOW PACKED-BED REACTOR BASED ON BIOMASS DISTRIBUTION

  • Park, Woo-Shin (Bio-Environmental Engineering Laboratory, Dept. of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST)) ;
  • Ahn, Yoeng-Hee (Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST)) ;
  • Jung, Kyung-Ja (Bio-Environmental Engineering Laboratory, Dept. of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST)) ;
  • Tatavarty, Rameshwar (Bio-Environmental Engineering Laboratory, Dept. of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST)) ;
  • Kim, In-S. (Bio-Environmental Engineering Laboratory, Dept. of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST))
  • 발행 : 2005.08.31
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초록

A novel technology for the removal of nitrogen from wastewater, an autotrophic denitrification process with sulfur particles, has been developed. A respirometer was employed to monitor the nitrogen gas produced in the reactor, while 4',6-diamidino-2-phenylindole staining was employed to investigate the biomass distribution in terms of cell number according to the reactor height. From the respirometric monitoring, the denitrification reaction was defined as a first order reaction. The reactor was divided into 7 sections and biomass was analyzed in each section where cell number was ranged from $4.8\;{\times}\;10^6\;to\;8.7\;{\times}\;10^7$ cells/g dry weight of sulfur. Cells placed mostly in the lower layer ( < 10 cm of height). A function for biomass distribution was obtained with non-linear regression. Then a mathematical model has been developed by combining a plug-flow model with the biomass distribution function. The model could make a vertical profile of the up-flow packed-bed reactor resulting in a reasonable comparison with measured nitrate concentration with 5% of error range.

키워드

참고문헌

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피인용 문헌

  1. Distribution of the Microbial Community Structure in Sulfur-Based Autotrophic Denitrification Columns vol.136, pp.5, 2010, https://doi.org/10.1061/(ASCE)EE.1943-7870.0000181