A computational framework for informing decision in relation to environmental impact of wastewater discharges
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Abstract
Multi-objective optimization combined with numerical simulation are useful
tools for environmental sciences. Using these methods, the treatment and discharge of
wastewater in large waterbodies (estuaries, rivers, lakes. . . ) - one of the essential problems
in environmental management - can be analyzed in order to avoid the usual controversy between
economic and ecological interests. In this article we present a decision support
software system referred to as Simulating Optimal Solutions (SOS). Software SOS is a
Matlab toolbox (interfaced with Fortran codes for mathematical computation of hydro-
dynamics and contaminant dispersion) to assess in decision making related to treatment intensity in
different purifying plants. The program allows a flexible analysis both from a cooperative
viewpoint (Pareto optimality) and a non-cooperative one (Nash equilibria). A realistic
example posed in Arousa estuary (NW Spain) helps us to show its capabilities.