A critical review of clarifier modelling: State-of-the-art and engineering practices

Publication: Research - peer-reviewPaper – Annual report year: 2012


  • Author: Plósz, Benedek

    Urban Water Engineering, Department of Environmental Engineering, Technical University of Denmark, Denmark

  • Author: Nopens, Ingmar

    BIOMATH, Belgium

  • Author: Rieger, Leiv

    EnviroSim Associates Ltd., Canada

  • Author: Griborio, Alonso

    Hazen and Sawyer, United States

  • Author: Clercq, Jeriffa De

    University College Ghent, Belgium

  • Author: Vanrolleghem, Peter A.

    Universite Laval, Canada

  • Author: Daigger, Glen T.

    CH2M Hill, United States

  • Author: Takacs, Imre

    Dynamita, France

  • Author: Wicks, Jim

    The Fluid Group, United Kingdom

  • Author: Ekama, George A.

    University of Cape Town, South Africa

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This outline paper aims to provide a critical review of secondary settling tank (SST) modelling approaches used in current wastewater engineering and develop tools not yet applied in practice. We address the development of different tier models and experimental techniques in the field with a particular emphasis on works published since the reference work by Ekama et al. (1997). We give insight into the current engineering practice, identify how recent developments can be transferred to engineering practice and pinpoint limitations and potential pathways for further development of models and measurement techniques. As a follow-up to the present work, we believe there is a need for the development of a protocol for systematic clarifier modelling depending on the modelling objective and in line with good modelling practice.
Original languageEnglish
Publication date2012
Number of pages6
StatePublished - 2012
Event3rd IWA/WEF Wastewater Treatment Modelling Seminar - Mont-Sainte-Anne QC, Canada


Conference3rd IWA/WEF Wastewater Treatment Modelling Seminar
CityMont-Sainte-Anne QC
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