Modelling sugarcane vinasse processing in an acidogenic reactor to produce hydrogen with an ADM1-based model

Author(s)

Couto, P. T. ^{[1, 2]} ; Eng, F. ^[1] ; Naessens, W. ^[2] ; Nopens, I ^[2] ; Zaiat, M. ^[1] ; Ribeiro, R. ^[3]

Affiliation

^[1] Univ Sao Paulo, Sao Carlos Sch Engn, Biol Proc Lab, 1100 Joao Dagnone Ave, BR-13563120 Sao Carlos, SP - Brazil

^[2] Univ Ghent, Dept Data Anal & Math Modeling, BIOMATH, Ghent - Belgium

^[3] Univ Sao Paulo, Fac Anim Sci & Food Engn, Environm Biotechnol Lab, 225 Duque de Caxias Norte Ave, BR-13635900 Pirassununga, SP - Brazil

• Document type: Journal article
• Source: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY; v. 45, n. 11, p. 6217-6230, FEB 28 2020.
• Web of Science Citations: 0

Abstract

Biohydrogen can be produced by dark fermentation of sugarcane vinasse, wastewater from the sugar-alcohol industry, in acidogenic anaerobic bioreactors. In this work, a model based on ADM1 was constructed to model anaerobic processing of sugarcane vinasse in an acidogenic batch reactor. Based on experimental data, hypotheses were put forward. Two new pathways were assumed: Acetate + Lactate -> Butyrate + Hydrogen and Glycerol -> Butyrate + Hydrogen. A sensitivity analysis was carried out to reduce the number of free parameters, after which the model was calibrated with the experimental data. The proposed model was able to adequately describe sugar and glycerol consumption, acetate and lactate production and consumption and hydrogen and butyrate production over the operational time at an initial concentration of vinasse of 30kgCODm(-3). Nevertheless more improvements can be carried out to make the model more realistic and to cover intermediate metabolic pathways under conditions of lower vinasse concentration, such as 15kgCODm(-3) and 20kgCODm(-3). (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 18/12748-3 - Molecular analysis of microorganisms involved in the fatty acid volatiles and hydrogen production in the treatment of vinasse from sugarcane by anaerobic digestion
• Grantee: Felipe Eng Sánchez
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• FAPESP's process: 16/21529-8 - Study of the use of ADM1 model as platform of modeling for different configurations of reactors used in the anaerobic treatment of vinasse
• Grantee: Pamela Talita do Couto
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 17/25778-5 - Study of the Anaerobic Digestion Model Number 1 as a modeling platform for different configurations of reactors used in anaerobic treatment of sugarcane vinasse with sensitivity analysis and statistical validation of the model
• Grantee: Pamela Talita do Couto
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• FAPESP's process: 15/06246-7 - Biorefinery concept applied to biological wastewater treatment plants: environmental pollution control coupled with material and energy recovery
• Grantee: Marcelo Zaiat
• Support Opportunities: Research Projects - Thematic Grants