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Use of the Methane Yield to Indicate the Metabolic Behaviour of Methanogenic Biofilms by S. Michaud; N. Bernet; P. Buffière; J.P. Delgenès is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Use of the Methane Yield to Indicate the Metabolic Behaviour of Methanogenic Biofilms about?

Methane yield (Y CH 4 ) is the result of the balance between the flows of organic carbon to catabolism and anabolism in methanogenic ecosystems. In anaerobic biofilm processes, it can be easily obtained to be used to characterize the behaviour of the biofilm in important transient phases. Thus, at the beginning of the start-up period, Y CH 4 is very low, indicating an important anabolic activity of the microorganisms to build the biofilm. Then, its value increases upto a stable level corresponding to the end of the biofilm formation. The time course of Y CH 4 describes the three phases of biofilm formation with the induction, the growth and the steady state. Therefore, it is possible to compare different start-up strategies and define the best operating conditions to grow the methanogenic biofilm. In steady state operations, Y CH 4 expresses the balance of the dynamic system between the net growth of the fixed cells and the biomass detachment, depending on the shear stress and on the capacity of the solid support to retain biomass. It also reflects the detachment rate evolution in anaerobic fixed film processes.

Who reads Use of the Methane Yield to Indicate the Metabolic Behaviour of Methanogenic Biofilms?

Author

S. Michaud; N. Bernet; P. Buffière; J.P. Delgenès

Publisher

Elsevier Science; Elsevier ; Elsevier Applied Science; Elsevier BV (ISSN 1873-3298)

Published

2005

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)