Integration of mixing, heat transfer, and biochemical reaction kinetics in anaerobic methane fermentation

Biotechnology and Bioengineering
Binxin Wu

Abstract

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.

References

Jan 1, 1990·Applied and Environmental Microbiology·R I Mackie, M P Bryant
Sep 14, 2001·Bioresource Technology·A KeshtkarB Meyssami
Mar 29, 2002·Environmental Science & Technology·Hansruedi SiegristWilli Gujer
Mar 8, 2003·Progress in Cardiovascular Nursing·Debra Gerardi
Feb 3, 2005·Biotechnology and Bioengineering·Mehul S Vesvikar, Muthanna Al-Dahhan
Jun 7, 2005·Bioresource Technology·C Chávez PE M Escamilla-Silva
Jul 30, 2005·Bioresource Technology·Wayne J Parker
Aug 23, 2005·Water Research·Khursheed KarimM H Al-Dahhan
Jun 16, 2007·Water Research·Khursheed KarimMuthanna H Al-Dahhan
Mar 9, 1984·Science·D L Klass
Jan 1, 1982·Biotechnology and Bioengineering·A G Hashimoto
Dec 17, 2008·Bioresource Technology·Mitsuharu TerashimaTatsuya Noike
Jan 13, 2009·Water Research·Robert N Meroney, P E Colorado
Nov 17, 2009·Water Research·Binxin Wu

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Citations

Dec 19, 2013·Applied Biochemistry and Biotechnology·Keith A Schimel
Jan 15, 2014·Applied Microbiology and Biotechnology·Guan WangSiliang Zhang
Sep 18, 2015·Water Research·Davide DapeloJohn Bridgeman
Apr 3, 2020·Journal of Industrial Microbiology & Biotechnology·Adi KusmayadiHong-Wei Yen
Jul 10, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Yohannis Mitiku ToboIngmar Nopens
May 18, 2020·The Science of the Total Environment·S MiryahyaeiN Eshtiaghi

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