title: Kinetic modelling of anaerobic hydrolysis of solid wastes, including disintegration processes.
abstract: A methodology to estimate disintegration and hydrolysis kinetic parameters of solid wastes and validate an ADM1-based anaerobic co-digestion model is presented. Kinetic parameters of the model were calibrated from batch reactor experiments treating individually fruit and vegetable wastes (among other residues) following a new protocol for batch tests. In addition, decoupled disintegration kinetics for readily and slowly biodegradable fractions of solid wastes was considered. Calibrated parameters from batch assays of individual substrates were used to validate the model for a semi-continuous co-digestion operation treating simultaneously 5 fruit and vegetable wastes. The semi-continuous experiment was carried out in a lab-scale CSTR reactor for 15 weeks at organic loading rate ranging between 2.0 and 4.7 gVS/Ld. The model (built in Matlab/Simulink) fit to a large extent the experimental results in both batch and semi-continuous mode and served as a powerful tool to simulate the digestion or co-digestion of solid wastes.
authors.affiliation: Department of Chemical Engineering, Institute of Technology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
authors.forename: Santiago
authors.initials: S
authors.lastname: García-Gen
authors.affiliation: INRA, UR50, Laboratoire de Biotechnologie de l'Environnement, Avenue des Etangs, Narbonne F-11100, France.
authors.forename: Philippe
authors.initials: P
authors.lastname: Sousbie
authors.affiliation: INRA, UR50, Laboratoire de Biotechnologie de l'Environnement, Avenue des Etangs, Narbonne F-11100, France.
authors.forename: Ganesh
authors.initials: G
authors.lastname: Rangaraj
authors.affiliation: Department of Chemical Engineering, Institute of Technology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
authors.forename: Juan M
authors.initials: JM
authors.lastname: Lema
authors.affiliation: Department of Chemical Engineering, Institute of Technology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain; Institute Centre for Water and Environment (iWater), Masdar Institute of Science and Technology, PO Box 54224 Abu Dhabi, United Arab Emirates. Electronic address: jrodriguez@masdar.ac.ae.
authors.forename: Jorge
authors.initials: J
authors.lastname: Rodríguez
authors.affiliation: INRA, UR50, Laboratoire de Biotechnologie de l'Environnement, Avenue des Etangs, Narbonne F-11100, France.
authors.forename: Jean-Philippe
authors.initials: JP
authors.lastname: Steyer
authors.affiliation: INRA, UR50, Laboratoire de Biotechnologie de l'Environnement, Avenue des Etangs, Narbonne F-11100, France.
authors.forename: Michel
authors.initials: M
authors.lastname: Torrijos
mesh_terms: D000693:Anaerobiosis; D001673:Biodegradation, Environmental; D019149:Bioreactors; D002138:Calibration; D003198:Computer Simulation; D006868:Hydrolysis; D007700:Kinetics; D008962:Models, Theoretical; D012037:Refuse Disposal / Q000295:instrumentation / Q000379:methods*; D015203:Reproducibility of Results; D062611:Solid Waste; D014675:Vegetables
chemical_list: D062611:Solid Waste
keywords: ADM1; Anaerobic co-digestion; Fractionation; Kinetics; Modelling; Solid wastes