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BENCHMARKING WWTP CONTROL STRATEGIES WITH ROBUSTNESS AND ECONOMIC MEASURES AS PERFORMANCE CRITERIA

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Carefully conducted model-based simulation studies have become an important part of studies evaluating control strategies for wastewater treatments plants. During the past four years a consortium of researchers and practitioners developed a standard test methodology called the Benchmark, a simulation procedure defined around a simulation model, a plant layout, realistic influent loads and a test protocol that provides an objective measure ofperformance. It is this measure of performance that is the focus of this paper. First, a total cost index, TCI, is developed that makes a weighted sum of the different performance evaluation criteria (energy consumption, sludge production, effluent quality, …). In addition a robustness index is proposed that aims to evaluate the sensitivity of the performance to the WWTP characteristics. It requires some well-designed additional simulations that evaluate the performance under process conditions that differ slightly from the ones defined in the benchmark protocol.
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Document Type: Research Article

Publication date: 2001-01-01

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