Publications by authors named "O Petrimaux"
Article Synopsis
- The integrated fixed-film activated sludge (IFAS) process is designed to improve nitrogen removal in wastewater treatment by using a combination of traditional activated sludge systems and biofilm carriers.
- This study focuses on creating and evaluating a numerical model for a new IFAS configuration, which includes an anoxic reactor, an aerobic reactor, and an IFAS reactor with a specific filling ratio.
- The model successfully predicts key performance indicators like sludge mass variations, nitrification rates, and nitrogen concentrations in effluent over different time frames, proposing calibrated parameters to enhance prediction accuracy.
This work presents a one-dimensional model of a moving bed bioreactor (MBBR) process designed for the removal of nitrogen from raw wastewaters. A comprehensive experimental strategy was deployed at a semi-industrial pilot-scale plant fed with a municipal wastewater operated at 10-12 °C, and surface loading rates of 1-2 g filtered COD/m d and 0.4-0.
View Article and Find Full Text PDFThe objective of this study is to improve knowledge on the integrated fixed-film-activated sludge (IFAS) system designed for nitrogen removal. Biofilm growth and its contribution to nitrification were monitored under various operating conditions in a semi-industrial pilot-scale plant. Nitrification rates were observed in biofilms developed on free-floating media and in activated sludge operated under a low sludge retention time (4 days) and at an ammonia loading rate of 45-70 gNH4-N/kgMLVSS/d.
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