Modelling sugarcane vinasse processing in an acidogenic reactor to produce hydrogen with an ADM1-based model
| Autor: | Ingmar Nopens, Rogers Ribeiro, Pâmela Couto, Marcelo Zaiat, Felipe Eng, Wouter Naessens |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Acidogenesis
Hydrogen Renewable Energy Sustainability and the Environment Chemistry Batch reactor Vinasse Analytical chemistry Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Dark fermentation 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences HIDROGÊNIO chemistry.chemical_compound Fuel Technology Bioreactor Glycerol Biohydrogen 0210 nano-technology |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 0360-3199 |
| Popis: | 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: A c e t a t e + L a c t a t e → B u t y r a t e + H y d r o g e n and G l y c e r o l → B u t y r a t e + H y d r o g e n . 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 30 k g C O D m − 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 15 k g C O D m − 3 and 20 k g C O D m − 3 . |
| Databáze: | OpenAIRE |
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