A kinetic approach to anaerobic hydrogen-producing process

Mu, Yang, Yu, Han-Qing and Wang, Gang (2007) A kinetic approach to anaerobic hydrogen-producing process. Water Research, 41 5: 1152-1160. doi:10.1016/j.watres.2006.11.047

Author Mu, Yang
Yu, Han-Qing
Wang, Gang
Title A kinetic approach to anaerobic hydrogen-producing process
Journal name Water Research   Check publisher's open access policy
ISSN 0043-1354
Publication date 2007-03
Year available 2007
Sub-type Article (original research)
DOI 10.1016/j.watres.2006.11.047
Volume 41
Issue 5
Start page 1152
End page 1160
Total pages 9
Place of publication Oxford
Publisher Pergamon Press
Collection year 2007
Language eng
Subject 090703 Environmental Technologies
090608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)
Abstract Kinetics of hydrogen production from sucrose by mixed anaerobic cultures was investigated, and the Gompertz model was modified to describe the growth of hydrogen-producing microorganisms, consumption of substrate and formation of product in this work. A modified Gompertz model could adequately fit the experimental results. The effects of pH, temperature and the ratio of the initial substrate concentration to initial biomass concentration (S0/X0) on the maximum specific microbial growth rate (μm) were evaluated using a response-surface methodology. Experimental results show that pH, temperature and S0/X0 all had an influence on μm. The effect of pH and the second-order effect of pH and temperature were significant. A maximum μm of 0.078 h−1 was estimated under the optimum conditions of pH 5.5, temperature 34.6 °C and S0/X0 of 4.3 g/g-VSS. Modeling of microbial growth, substrate consumption and product formation was useful for optimizing the anaerobic hydrogen-producing process.
Keyword Gompertz equation
Maximum specific growth rate
Response-surface methodology (RSM)
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Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
Advanced Water Management Centre Publications
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