Modelling the simultaneous processes occurring during the BOD5 test using synthetic waters as a pattern |
| |
Authors: | María J Martín Francisco J Burguillo William G Bardsley |
| |
Institution: | Departamento de Química Física, Facultad de Farmacia, Universidad de Salamanca, Espa?a, Spain. |
| |
Abstract: | Synthetic waters imitating BOD5 test conditions have been studied to model the progress curves of cell growth, organic matter consumption and oxygen demand.
Glucose and glutamic acid were used as organic matter and Bacillus subtilis, Escherichia coli and Pseudomonas putida as microorganisms. The concentrations of all the products were measured simultaneously over time and were fitted to the Logistic
and Monod models. Following this, the goodness of fit was analysed. Discrimination between models allowed us to conclude that
the Logistic model has acceptable accuracy to describe the kinetic behaviour inside a BOD5 bottle, while the extra parameter in the Monod model would not be statistically justified. Thus, the logistic parameters
were determined under different conditions by non-linear regression and their biological meaning was interpreted. |
| |
Keywords: | Biochemical oxygen demand (BOD) BOD5 test Kinetics Modelling Logistic model Monod model |
本文献已被 PubMed SpringerLink 等数据库收录! |
|