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Bioprocess and Biosystems Engineering

, Volume 40, Issue 4, pp 499–510 | Cite as

Dynamic modelling of solids in a full-scale activated sludge plant preceded by CEPT as a preliminary step for micropollutant removal modelling

  • Zeina Baalbaki
  • Elena Torfs
  • Thomas Maere
  • Viviane Yargeau
  • Peter A. Vanrolleghem
Research Paper

Abstract

The presence of micropollutants in the environment has triggered research on quantifying and predicting their fate in wastewater treatment plants (WWTPs). Since the removal of micropollutants is highly related to conventional pollutant removal and affected by hydraulics, aeration, biomass composition and solids concentration, the fate of these conventional pollutants and characteristics must be well predicted before tackling models to predict the fate of micropollutants. In light of this, the current paper presents the dynamic modelling of conventional pollutants undergoing activated sludge treatment using a limited set of additional daily composite data besides the routine data collected at a WWTP over one year. Results showed that as a basis for modelling, the removal of micropollutants, the Bürger–Diehl settler model was found to capture the actual effluent total suspended solids (TSS) concentrations more efficiently than the Takács model by explicitly modelling the overflow boundary. Results also demonstrated that particular attention must be given to characterizing incoming TSS to obtain a representative solids balance in the presence of a chemically enhanced primary treatment, which is key to predict the fate of micropollutants.

Keywords

Activated sludge modelling Conventional pollutants Contaminants of emerging concern Influent characterization Solids balance 

Notes

Acknowledgements

The authors thank the staff at the Guelph WWTP for their help in providing the data. We gratefully acknowledge the McGill Engineering Doctoral Award for supporting Zeina Baalbaki. Funding for this study was provided by a research Grant to Viviane Yargeau (PI) and colleagues (Chris Metcalfe and Peter Vanrolleghem) from the Natural Sciences and Engineering Research Council (NSERC) of Canada through the Strategic Grants Program (430646-2012). Peter Vanrolleghem holds the Canada Research Chair on Water Quality Modelling.

Supplementary material

449_2016_1715_MOESM1_ESM.docx (240 kb)
Supplementary material 1 (DOCX 240 kb)

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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Zeina Baalbaki
    • 1
  • Elena Torfs
    • 2
  • Thomas Maere
    • 2
  • Viviane Yargeau
    • 1
  • Peter A. Vanrolleghem
    • 2
  1. 1.Department of Chemical EngineeringMcGill UniversityMontrealCanada
  2. 2.modelEAU, Département de génie civil et de génie des eauxUniversité LavalQuebecCanada

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