Evaluation of different formulations to optimally locate sensors in sewer systems

Journal article (2017)

Authors

B. K. Banik Shahjalal Univ. of Science and Technology
Leonardo Alfonso IHE Delft Institute for Water Education
C. Di Cristo University of Cassino and Southern Lazio
A. Leopardi University of Cassino and Southern Lazio
A.E. Mynett Environmental Fluid Mechanics - CEG , Hydraulic Engineering , IHE Delft Institute for Water Education
Research Group
Environmental Fluid Mechanics (CEG) (TU Delft)
Optimization Sensors Sewers Information theory Illicit intrusion
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Published Date

01-07-2017

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Hydraulic Engineering

Research Group

Environmental Fluid Mechanics

Abstract

Efficient management of a sewer system includes the control of the conveyed wastewater quality to adequately operate treatment plants and protect the receiving water bodies. Moreover, these systems are vulnerable to either accidental spills or intentional unauthorized discharges. To properly manage them, a limited number of sensors could be placed at different locations to monitor the water quality. In this paper, multiobjective and single-objective optimization procedures to optimally locate sensors in sewer systems are proposed, tested, and compared. The multiobjective procedures include objective functions related to information theory (IT procedure), detection time and reliability (DR procedure), and a combination of them (IT_DR procedure). The single-objective procedures include a greedy-based objective function (GR procedure) and a merged objective function (DR_IT_GR procedure). The procedures show a similar performance when applied on a small network, whereas in a real system, the results show that (1) the IT-based method can be effectively used as a filtering technique(2) the DR_IT_GR procedure outperforms the other multiobjective onesand (3) the GR procedure is very efficient in finding the Pareto extreme solutions.