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Probabilistic WWTP Design and Upgrade in a Water Quality Based Regulation Context

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Process choice and dimensioning of WWTPs is a particularly sensitive step to cost-efficiently comply with regulatory standards. This step accounts only for a small fraction of the upfront costs, but it can lead to substantial savings.

This paper illustrates the results of a systematic methodology to evaluate system design/upgrade options with regard to both effluent quality and receiving water quality. In contrast to conventional practice, the presented approach allows choosing the most appropriate trade-off between cost of measures and effluent quality, and to assess the reliability of a process layout by means of uncertainty analysis. It is therefore a flexible instrument to cope with the flexibility and complexity of integrated water management regulations.

Keywords: Activated sludge; Integrated modelling; Probabilistic design; Uncertainty assessment

Document Type: Research Article


Publication date: January 1, 2009

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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