Subsequently, spelling errors were discovered which affected the nature of the paper, and a correction was published on 11 June 2012.
Integration of mixing, heat transfer, and biochemical reaction kinetics in anaerobic methane fermentation†
Article first published online: 27 MAY 2012
Copyright © 2012 Wiley Periodicals, Inc.
Biotechnology and Bioengineering
Volume 109, Issue 11, pages 2864–2874, November 2012
How to Cite
Wu, B. (2012), Integration of mixing, heat transfer, and biochemical reaction kinetics in anaerobic methane fermentation. Biotechnol. Bioeng., 109: 2864–2874. doi: 10.1002/bit.24551
- Issue published online: 24 SEP 2012
- Article first published online: 27 MAY 2012
- Accepted manuscript online: 7 MAY 2012 07:21AM EST
- Manuscript Accepted: 23 APR 2012
- Manuscript Revised: 18 APR 2012
- Manuscript Received: 22 MAR 2012
- computational fluid dynamics;
- physical process;
- biological process
An extensive investigation of anaerobic methane fermentation requires identifying the relationship between the physical environment and biological process. In this study, a computational fluid dynamics (CFD) technique was used to characterize bacterial fermentation mechanisms intertwined with mixing and heat transfer in anaerobic digesters. The results demonstrate that the methane yield remains almost unchanged while the energy efficiency decreases with increasing mixing power in a complete-mix digester, and that the energy output increases nonlinearly with the increase in heating energy in a plug-flow digester. The CFD method can be applied to other bioreactors to gain valuable insights into their behavior as well. Integrating flow and temperature with kinetic behavior for anaerobic digestion not only solves the controversy about how mixing influences the digestive process, but also assists in optimizing the digester design and increasing the efficiency of energy conversion, and additionally, provides a reference for improving the mixing guidelines recommended by the U.S. Environmental Protection Agency. Biotechnol. Bioeng. 2012; 109: 2864–2874. © 2012 Wiley Periodicals, Inc.