Determination of biodegradation kinetics through use of electrolytic respirometry

The purpose of this work was to demonstrate that it is possible to determine the kinetics of biodegradation of single organic compounds by using only measurements of oxygen consumption in batch reactors. Batch experiments were conducted using acclimated biomass growing on aniline or benzoic acid in...

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Bibliographic Details
Published in:Water science and technology 1989-01, Vol.21 (8-9), p.957-968
Main Authors: GRADY, C. P. L. JR, DANG, J. S, HARVEY, D. M, JOBBAGY, A, WANG, X.-L
Format: Article
Language:English
Subjects:
Aniline
Batch reactors
Benzoic acid
Bioconversions. Hemisynthesis
Biodegradation
Biological and medical sciences
bioreactors
Biotechnology
Cell growth
Curve fitting
Data
Dissolved organic carbon
Fundamental and applied biological sciences. Psychology
Kinetics
mathematical models
Methods. Procedures. Technologies
Organic compounds
Oxygen
Oxygen consumption
Parameter estimation
Reaction kinetics
Removal
Respirometry
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Summary:The purpose of this work was to demonstrate that it is possible to determine the kinetics of biodegradation of single organic compounds by using only measurements of oxygen consumption in batch reactors. Batch experiments were conducted using acclimated biomass growing on aniline or benzoic acid in which simultaneous determinations over time were made of oxygen consumption, substrate removal (by SCOD, DOC and 14C) and cell growth. Kinetic parameters were estimated by applying nonlinear curve-fitting techniques to each of the data sets. There were no important differences between the parameter estimates determined from oxygen consumption data and any of the measurements of substrate removal. In general, parameter estimates made with cell growth data were the least reliable.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.1989.0298