Enhancing biohydrogen production from xylose at low temperature (20⯰C) using natural FeS2 Ore: Thermodynamic analysis and mechanistic insights.
Bioresour Technol
; : 131030, 2024 Jun 23.
Article
em En
| MEDLINE
| ID: mdl-38917911
ABSTRACT
This study investigates the efficacy of pyrite in enhancing biohydrogen production from xylose at low temperature (20⯰C). Higher hydrogen yield rates (Rm) and reduced lag time (λ) were achieved across initial xylose concentrations ranging from 2-10â¯g/L. At an optimal xylose concentration of 5â¯g/L, pyrite reduced λ by 2.5â¯h and increased Rm from 1.3 to 2.7â¯mL h-1. These improvements are attributed to pyrite's ability to enhance the secretion of extracellular polymeric substance and flavins, facilitate NADH and NAD+ generation and transition, and favor biohydrogen production. Thermodynamic analyses and Gibbs free energy calculations further elucidated pyrite's role in the full reaction process and rate-limiting steps at low temperature. This study offers valuable insights into improving the efficiency of biohydrogen production at low temperature, with significant implications for energy conservation.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article