Title :
A new approach to assess risk in water treatment using the belief function framework
Author :
Démotier, Sabrina ; Schön, Walter ; Denoeux, Thierry ; Odeh, Khaled
Author_Institution :
Suez Environ., Le Pecq, France
Abstract :
A methodology is proposed for assessing the risk to produce non-compliant potable water, taking into account the quality of the raw water, as well as characteristics of the treatment unit and different failure modes. Belief functions are used to describe expert knowledge of treatment process efficiency, failure rates, latency times and raw water quality. Evidential reasoning provides mechanisms to combine this information and assess the plausibility of non-compliant water production. This approach may be used by treatment plant designers to choose the optimal architecture, given a user-defined level of residual risk.
Keywords :
belief networks; case-based reasoning; expert systems; failure analysis; risk management; water treatment; belief function framework; evidential reasoning; expert knowledge; failure rates; latency times; noncompliant potable water; raw water; raw water quality; risk assessment; treatment plant designers; treatment process; water treatment; Degradation; Delay; Fault detection; Fault diagnosis; Fault trees; Production; Quality management; Risk management; Transfer functions; Water resources;
Conference_Titel :
Systems, Man and Cybernetics, 2003. IEEE International Conference on
Print_ISBN :
0-7803-7952-7
DOI :
10.1109/ICSMC.2003.1244671
