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Medientyp:
E-Artikel
Titel:
Effect of the Supernatant Liquid Recirculation on H2 and CH4 Production in the Two-Phase Anaerobic Fermentation
Beteiligte:
Wang, Yuan Yuan;
Ai, Ping
Erschienen:
Trans Tech Publications, Ltd., 2013
Erschienen in:Applied Mechanics and Materials
Sprache:
Nicht zu entscheiden
DOI:
10.4028/www.scientific.net/amm.291-294.610
ISSN:
1662-7482
Entstehung:
Anmerkungen:
Beschreibung:
<jats:p>A two-phase fermentation process that combined H2 and CH4 production with supernatant liquid recirculation to adjust the pH, was suggested in this study. It was found that with the suitable recirculation, the phase separation performance was improved in the hydrogen production reactor. The highest average H2 and CH4 yield were 2.02, 7.30 L / kg TS • d, respectively, when the RRs were 45 L/2d, 30 L/3d, respectively. The main degradation pathway of organic matter was propionic acid and butyric acid mixed fermentation types. The change of RR affected the fermentation pathway and gas production rate slightly.</jats:p>