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dessablEAU
(2015)Characterizing and modelling the influent and the effluent of grit chambers
A grit
chamber is a preliminary treatment unit that can be found in most wastewater
treatment plants to protect the equipment and processes downstream. This unit
is designed to remove inorganic particles, generally sand, that can harm pumps
and accumulate in the biological reactors, reducing their efficiency. However, despite
its importance, extensive research on grit chambers is lacking and their efficiency
is increasingly questioned.
This
project aims to meet the expectations of municipalities and industry by
producing a reliable and standardized characterization protocol of the water
quality at the inlet and the outlet of a grit chamber, including a sampling
procedure and a methodology to analyze the collected samples. Particles
attention is given to the measured of the particle settling velocity
distribution (PSVD) using the ViCAs protocol. PSVD-based dynamic models of two
different types of grit chambers (aerated and vortex grit chambers) will be
developed to describe the water quality at the outlet. Doing so, the modelling
of the entire wastewater treatment plant will be significantly improved.
Finally, optimization scenarios for the design and operation of grit chambers
will be proposed and tested on a pilot vortex provided by the industrial
partner Veolia.
Publications :
- Plana, Q., Carpentier, J., Tardif, F., Pauleat, A., Gadbois, A., Lessard, P. and Vanrolleghem, P. A. (2018) Grit particle characterization: Influence of sample pretreatment and sieving method. Wat. Sci. Tech., 78, 1400-1406.
- Plana, Q., Carpentier, J., Tardif, F., Pauleat, A., Gadbois, A., Lessard, P. and Vanrolleghem, P. A. (2018) Grit particle characterization: Study of the settleability. In: Proceedings 91st Annual WEF Technical Exhibition and Conference (WEFTEC2018) . New Orleans, LA, USA, September 29 - October 3 2018.
- Plana, Q., Lessard, P. and Vanrolleghem, P. A. (2019) Dynamic grit chamber modelling: Dealing with particle settling velocity distributions. In: Proceedings 10th International IWA Symposium on Systems Analysis and Integrated Assessment (WATERMATEX2019). Copenhagen, Denmark, September 1-4 2019.
- Plana, Q., Carpentier, J., Tardif, F., Pauleat, A., Gadbois, A., Lessard, P. and Vanrolleghem, P. A. (2017) Influence of sample pretreatment on grit characteristics. In: Proceedings 31e Congrès de l'Est du Canada de Recherche sur la Qualité de l'Eau (ACQE). Québec, Québec, Canada, May 19 2017.
- Carpentier, J., Plana, Q., Tardif, F., Pauleat, A., Gadbois, A., Lessard, P. and Vanrolleghem, P. A. (2016) Caractérisation des particules retenues par les unités de dessablage. In: Proceedings 39e Symposium sur la gestion de l'eau. Laval, Québec, Canada, November 9 2016. (in French).
- Plana, Q., Carpentier, J., Tardif, F., Pauleat, A., Gadbois, A., Lessard, P. and Vanrolleghem, P. A. (2017) Influence of sample pretreatment and weather conditions on grit characteristics. In: > i>Proceedings 90th Annual WEF Technical Exhibition and Conference (WEFTEC2017) . Chicago, IL, USA, September 30 - October 4 2017.
- Plana, Q., Carpentier, J., Gagnon, L., Pauleat, A., Gadbois, A., Lessard, P. and Vanrolleghem, P. A. (2018) Study of the settleability of grit particles. In: Proceedings 32e Congrès de l'Est du Canada de Recherche sur la Qualité de l'Eau (ACQE) . Sherbrooke, Québec, Canada, May 4 2018.
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Peter Vanrolleghem - Department of civil engineering and water engineering - Pavillon Adrien-Pouliot - 1065, Médecine avenue, Office 2974
Québec (Québec) - Canada - G1V 0A6 - Telephone : +1-418-656-5085 Email : peter.vanrolleghem@gci.ulaval.ca
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