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

Volume

2

fYear

2003

fDate

5-8 Oct. 2003

Firstpage

1792

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Systems, Man and Cybernetics, 2003. IEEE International Conference on

ISSN

1062-922X

Print_ISBN

0-7803-7952-7

Type

conf

DOI

10.1109/ICSMC.2003.1244671

Filename

1244671