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MATHEMATICAL MODEL OF SULFUR UTILIZING AUTOTROPHIC DENITRIFICATION IN AN UP-FLOW PACKED-BED REACTOR BASED ON BIOMASS DISTRIBUTION
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  • Journal title : Environmental Engineering Research
  • Volume 10, Issue 4,  2005, pp.191-198
  • Publisher : Korean Society of Environmental Engineering
  • DOI : 10.4491/eer.2005.10.4.191
 Title & Authors
MATHEMATICAL MODEL OF SULFUR UTILIZING AUTOTROPHIC DENITRIFICATION IN AN UP-FLOW PACKED-BED REACTOR BASED ON BIOMASS DISTRIBUTION
Park, Woo-Shin; Ahn, Yoeng-Hee; Jung, Kyung-Ja; Tatavarty, Rameshwar; Kim, In-S.;
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 Abstract
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 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.
 Keywords
Sulfur;denitrification;packed-bed;up-flow;biomass distribution;mathematical model;
 Language
English
 Cited by
1.
Simultaneous biological removal of nitrogen–sulfur–carbon: Recent advances and challenges, Biotechnology Advances, 2013, 31, 4, 409  crossref(new windwow)
2.
Distribution of the Microbial Community Structure in Sulfur-Based Autotrophic Denitrification Columns, Journal of Environmental Engineering, 2010, 136, 5, 481  crossref(new windwow)
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