Summary
Membrane inlet mass spectrometry was used to monitor liquid phase hydrogen and methane concentrations in samples from laboratory mesophilic (37°C) and thermophilic (55°C) anaerobic digesters supplied with a glucose based medium. The Ks obtained for H2 utilisation for the mesophilic system was 5.5 μM compared with 90 μM for the thermophilic system. Under overload situations of fatty acids or glucose, hydrogen became more apparent in the mesophilic system in contrast to the thermophilic system in which even gross overload gave only transient detectable hydrogen production.
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Whitmore, T.N., Lazzari, M. & Lloyd, D. Comparative studies of methanogenesis in thermophilic and mesophilic anaerobic digesters using membrane inlet mass spectrometry. Biotechnol Lett 7, 283–288 (1985). https://doi.org/10.1007/BF01042379
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DOI: https://doi.org/10.1007/BF01042379