SLUDGE MINIMIZATION BY THERMAL LYSIS DURING BIOLOGICAL WASTEWATER TREATMENT - Experimental Study, Model Set Up and Calibration

Julien Laurent, Romain Guignard, Magali Casellas, Christophe Dagot

Abstract

Sludge minimization by thermal treatment within activated sludge process was investigated at pilot scale. A 90°C treatment was set up in the return activated sludge loop. When keeping apparent sludge age at 15 days, 90°C treatment decreased sludge production by 30.4%. However, effluent quality was altered. A sludge minimization ASM1 based model was set up and calibrated against experimental data, fractionation experiments allowed us to determine state variables for treated sludge. Biomass lysis explained sludge minimization whereas the decrease of heterotrophs growth rate yielded the higher effluent COD concentration. The calibrated model will then be used to optimize the process.

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Paper Citation


in Harvard Style

Laurent J., Guignard R., Casellas M. and Dagot C. (2011). SLUDGE MINIMIZATION BY THERMAL LYSIS DURING BIOLOGICAL WASTEWATER TREATMENT - Experimental Study, Model Set Up and Calibration . In Proceedings of 1st International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH, ISBN 978-989-8425-78-2, pages 360-365. DOI: 10.5220/0003601903600365


in Bibtex Style

@conference{simultech11,
author={Julien Laurent and Romain Guignard and Magali Casellas and Christophe Dagot},
title={SLUDGE MINIMIZATION BY THERMAL LYSIS DURING BIOLOGICAL WASTEWATER TREATMENT - Experimental Study, Model Set Up and Calibration},
booktitle={Proceedings of 1st International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH,},
year={2011},
pages={360-365},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003601903600365},
isbn={978-989-8425-78-2},
}


in EndNote Style

TY - CONF
JO - Proceedings of 1st International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH,
TI - SLUDGE MINIMIZATION BY THERMAL LYSIS DURING BIOLOGICAL WASTEWATER TREATMENT - Experimental Study, Model Set Up and Calibration
SN - 978-989-8425-78-2
AU - Laurent J.
AU - Guignard R.
AU - Casellas M.
AU - Dagot C.
PY - 2011
SP - 360
EP - 365
DO - 10.5220/0003601903600365