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Theoretical Estimation of Stoichiometry for Biodegradation of Hazardous Organic Compounds  

우승한 (포항공과대학교 환경공학부)
박종문 (포항공과대학교 환경공학부)
Publication Information
Journal of Soil and Groundwater Environment / v.8, no.2, 2003 , pp. 70-77 More about this Journal
Abstract
Theoretical estimation of overall stoichiometry for the microbial degradation of hazardous organic compounds is described. Half-reaction method based on microbial energetics was used in the theoretical estimation. In addition to the half-reaction method, other theoretical methods such as intermediate formation, oxygenation reaction, and estimation of the standard free energy of formation by group contribution theory were also applied. As a case study, the application of these methods was demonstrated for the estimation of microbial kinetics in the biodegradation of phenanthrene which was chosen as a model hazardous organic compound along with glucose and hexadecane. The cell yield, oxygen requirement, nitrogen requirement, and mineralization ratio could be estimated from the overall stoichiometry. It is believed that these theoretical estimation methods are useful tools for practical design and assessment of bioremediation of soil and groundwater contaminated with hazardous organic compounds.
Keywords
biodegradation; hazardous organic compounds; model; stoichiometry;
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