Modelling hydrogen partial pressure change as a result of competition between the butyric and propionic groups of acidogenic bacteria

A simulation model of organic-matter anaerobic degradation suggested earlier was used to describe the acidogenesis phase of glucose anaerobic conversion. It was calibrated on the experimental data of Zoetemeyer et al. (1982), where a continuous-flow, stirred-tank reactor inoculated with activated sl...

Full description

Saved in:
Bibliographic Details
Published in:Bioresource technology 1995, Vol.54 (2), p.171-177
Main Authors: Vavilin, V.A., Rytow, S.V., Lokshina, L.Ya
Format: Article
Language:English
Subjects:
acidogenesis
competition for substrate
fermentation pathway
glucose anaerobic conversion
hydrogen
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A simulation model of organic-matter anaerobic degradation suggested earlier was used to describe the acidogenesis phase of glucose anaerobic conversion. It was calibrated on the experimental data of Zoetemeyer et al. (1982), where a continuous-flow, stirred-tank reactor inoculated with activated sludge was studied at different feed flow rates with the pH values controlled by automatic titration. The model considered the different fermentation pathways using two groups of acidogens. It was shown that competition between hydrogen-producing and hydrogen-utilising acidogenic bacteria for glucose causes a hydrogen partial pressure decrease at a decrease of feed flow rate.
ISSN:0960-8524
1873-2976
DOI:10.1016/0960-8524(95)00127-1