Journal
BIOPROCESS AND BIOSYSTEMS ENGINEERING
Volume 34, Issue 6, Pages 659-670Publisher
SPRINGER
DOI: 10.1007/s00449-011-0515-1
Keywords
Activated sludge; Calibration; Model parameters; Sensitivity analysis; Wastewater
Funding
- Ministry of Science and Higher Education (Republic of Poland) [N N209 102 637]
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In this study, the results of the calibration of the complex activated sludge model implemented in BioWin software for the full-scale wastewater treatment plant are presented. Within the calibration of the model, sensitivity analysis of its parameters and the fractions of carbonaceous substrate were performed. In the steady-state and dynamic calibrations, a successful agreement between the measured and simulated values of the output variables was achieved. Sensitivity analysis revealed that upon the calculations of normalized sensitivity coefficient (S (i,j) ) 17 (steady-state) or 19 (dynamic conditions) kinetic and stoichiometric parameters are sensitive. Most of them are associated with growth and decay of ordinary heterotrophic organisms and phosphorus accumulating organisms. The rankings of ten most sensitive parameters established on the basis of the calculations of the mean square sensitivity measure (delta (j) (msqr) ) indicate that irrespective of the fact, whether the steady-state or dynamic calibration was performed, there is an agreement in the sensitivity of parameters.
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