Up to now, within the design/retrofit of wastewater treatment plants (WWTPs), deterministic models were used to evaluate different scenarios on their merits in terms of effluent compliance. This paper describes an approach in which a Monte Carlo engine is coupled to a deterministic treatment plant model, followed by risk interpretation in the form of concentration - duration - frequency (cdf) curves of norm exceedance. The combination of probabilistic modelling techniques with the currently available deterministic models allows to determine the probability of exceeding the effluent limits of a WWTP. This percentage of exceedance is accompanied by confidence intervals resulting from the inherent uncertainty of influent characteristics and model parameters. The approach is illustrated for a hypothetical case study, consisting of a denitrifying plant model inspired by the benchmark model described by Spanjers et al.
Skip Nav Destination
Article navigation
Research Article|
April 01 2001
Development of a risk assessment based technique for design/retrofitting of WWTPs
D. Rousseau;
D. Rousseau
1BIOMATH Department, Ghent University, Coupure Links 653, B-9000 Gent, Belgium
Search for other works by this author on:
F. Verdonck;
F. Verdonck
1BIOMATH Department, Ghent University, Coupure Links 653, B-9000 Gent, Belgium
Search for other works by this author on:
O. Moerman;
O. Moerman
1BIOMATH Department, Ghent University, Coupure Links 653, B-9000 Gent, Belgium
Search for other works by this author on:
R. Carrette;
R. Carrette
2Aquafin nv, Technology Department, Dijkstraat 8, B-2630 Aartselaar, Belgium
Search for other works by this author on:
C. Thoeye;
C. Thoeye
2Aquafin nv, Technology Department, Dijkstraat 8, B-2630 Aartselaar, Belgium
Search for other works by this author on:
J. Meirlaen;
J. Meirlaen
1BIOMATH Department, Ghent University, Coupure Links 653, B-9000 Gent, Belgium
Search for other works by this author on:
P. A. Vanrolleghem
P. A. Vanrolleghem
1BIOMATH Department, Ghent University, Coupure Links 653, B-9000 Gent, Belgium
Search for other works by this author on:
Water Sci Technol (2001) 43 (7): 287–294.
Citation
D. Rousseau, F. Verdonck, O. Moerman, R. Carrette, C. Thoeye, J. Meirlaen, P. A. Vanrolleghem; Development of a risk assessment based technique for design/retrofitting of WWTPs. Water Sci Technol 1 April 2001; 43 (7): 287–294. doi: https://doi.org/10.2166/wst.2001.0437
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Impact Factor 1.915
CiteScore 3.3 • Q2
13 days submission to first
decision
1,439,880 downloads in 2021