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Mesocosm-Scale Constructed Wetland Design for Wastewater Treatment

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Model-based knowledge acquisition in environmental decision support system for wastewater integrated management.

Pau Prat¹, Lorenzo Benedetti, Lluís Corominas

¹LEQUIA, University of Girona, Campus Montilivi, Girona, 17071, Spain. paut@lequia.udg.cat

Water Science and Technology : a Journal of the International Association on Water Pollution Research

|March 2, 2012

Summary

Integrated modeling of urban wastewater systems (UWS) optimizes performance for better river quality and reduced overflows. This study provides optimal operating points for managing perturbations in wastewater systems.

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Area of Science:

Environmental Engineering
Water Resource Management
Urban Planning

Background:

The Water Framework Directive mandates achieving good water body status.
Integrated river basin management is crucial for water quality goals.
Urban wastewater system (UWS) management requires advanced decision support systems.

Purpose of the Study:

To apply integrated modeling to the 'Congost' UWS in Spain.
To simulate and analyze UWS behavior under various perturbations.
To optimize UWS performance for environmental objectives.

Main Methods:

Integrated modeling of the urban wastewater system.
Monte Carlo simulations for analyzing system behavior.
Global sensitivity analysis to identify optimal operating parameters.

Main Results:

Identified optimal operating set-points for different perturbation scenarios.
Demonstrated improvements in river water quality.
Achieved minimization of combined sewer overflows and optimized stormwater tank function.

Conclusions:

Integrated modeling provides effective tools for UWS management.
Optimal set-points enhance environmental decision support systems.
The approach contributes to meeting Water Framework Directive objectives.