Natural wastewater treatment systems (WWTSs) for urban areas in developing countries are subjected to large fluctuations in their inflow. This situation can result in a decreased treatment performance. The main aims of this paper are to introduce resilience as a performance indicator for natural WWTSs and to propose a methodology for the identification and generation of realistic disturbances of WWTSs. Firstly, a definition of resilience is formulated for natural WWTSs together with a short discussion of its most relevant properties. An important aspect during the evaluation process of resilience is the selection of appropriate disturbances. Disturbances of the WWTS are caused by fluctuations in water quantity and quality characteristics of the inflow. An approach to defining appropriate disturbances is presented by means of water quantity and quality data collected for the urban wastewater system of Coronel Oviedo (Paraguay). The main problem under consideration is the potential negative impact of stormwater inflow and infiltration in the sanitary sewer system on the treatment performance of anaerobic waste stabilisation ponds.
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Research Article|
April 01 2012
Definition of realistic disturbances as a crucial step during the assessment of resilience of natural wastewater treatment systems Available to Purchase
A. Cuppens;
1Division of soil and water management, Katholieke Universiteit Leuven, Celestijnenlaan 200e, BE-3001 Leuven, Belgium
E-mail: [email protected]
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I. Smets;
I. Smets
2Division of chemical and biochemical process technology and control, Katholieke Universiteit Leuven, Willem de Croylaan 46, BE-3001 Leuven, Belgium
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G. Wyseure
G. Wyseure
1Division of soil and water management, Katholieke Universiteit Leuven, Celestijnenlaan 200e, BE-3001 Leuven, Belgium
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Water Sci Technol (2012) 65 (8): 1506–1513.
Article history
Received:
July 15 2011
Accepted:
December 12 2011
Citation
A. Cuppens, I. Smets, G. Wyseure; Definition of realistic disturbances as a crucial step during the assessment of resilience of natural wastewater treatment systems. Water Sci Technol 1 April 2012; 65 (8): 1506–1513. doi: https://doi.org/10.2166/wst.2012.040
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