Calibration of sorption and biodegradation of micropollutants in a biokinetic model: nex experimental protocol and first results
Calage de la sorption et de la biodégradation de micropolluants dans un modèle biocinétique : nouveau protocole expérimental et premiers résultats
Résumé
An innovative experimental strategy is proposed to calibrate sorption and biodegradation modelling parameters. The protocol was based on batch experiments simulating the different conditions occurring in a full-scale activated sludge reactor. The studied conditions were the redox condition (aerobic, anoxic) and the substrate condition (no other substrate, carbon and nitrogne substrate, only nitrogen substrate). Thanks to the monitoring of dissolved and sorbed concentrations of micropollutant, robust mass balances could be performed. We succeeded in determining easily modelling parameter values associated to each condition. An application of the strategy is presented for a beta blocker (atenolol). We will apply this procedure to the other studied substances (other pharmaceuticals, alkylphenols, polycyclic aromatic hydrocarbons and pesticides).