| Texto completo | |
| Autor(es): |
Chaves, Gustavo T.
;
Teles, Felipe
;
Balbo, Antonio R.
;
dos Reis, Celia A.
;
Florentino, Helenice de Oliveira
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | RENEWABLE ENERGY; v. 226, p. 8-pg., 2024-04-10. |
| Resumo | |
Biodigesters are vessels in which a microbiological consortium converts an organic residue into biogas and biofertilizer. This bioprocess, anaerobic biodigestion, plays an important environmental role since the residue at the end of the reaction has a reduced organic load, in addition to lower toxicity, and can therefore be disposed of with less impact on the environment. Moreover, biodigestion produces biogas, which is of great interest in view of the current shortage of fossil fuels. In this sense, this work proposes a nonlinear mathematical model based on the mass flux balance of an Indian biodigester and it also analyses its properties, in particular the Lyapunov stability of its equilibrium solutions, and verifies the non -negativity of its solutions to be consistent with the biology of the issue. The proposed model represents an important tool to describe anaerobic biodigestion in an Indian biodigester, providing information for further planning, scenario prediction and control of the bioprocess. Simulations of the model in different scenarios showed that lower initial bacteria/substrate concentration ratios ( approximate to 0.14) can promote better biogas production performance. (AU) | |
| Processo FAPESP: | 14/01604-0 - Metodologia multiobjetivo para otimização de processos em energias renováveis |
| Beneficiário: | Helenice de Oliveira Florentino Silva |
| Modalidade de apoio: | Bolsas no Exterior - Pesquisa |
| Processo FAPESP: | 13/07375-0 - CeMEAI - Centro de Ciências Matemáticas Aplicadas à Indústria |
| Beneficiário: | Francisco Louzada Neto |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |
| Processo FAPESP: | 14/20853-0 - Métodos híbridos de pontos interiores/exteriores e de suavização de funções em problemas multiobjetivo de despacho econômico/ambiental |
| Beneficiário: | Antonio Roberto Balbo |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |