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Hydrogen‐dependent control of the continuous thermophilic anaerobic digestion process using membrane inlet mass spectrometry
Author(s) -
Lloyd D.,
Whitmore T. N.
Publication year - 1988
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1988.tb01202.x
Subject(s) - methanogenesis , anaerobic digestion , thermophile , chemistry , mass spectrometry , methane , anaerobic exercise , membrane , hydrogen , steady state (chemistry) , inlet , chromatography , digestion (alchemy) , analytical chemistry (journal) , biochemistry , biology , organic chemistry , physiology , enzyme , mechanical engineering , engineering
The control of a thermophilic continuous anaerobic digestion system when subjected to potential inhibitory shock loadings was achieved through the regulation of dissolved H 2 , monitored using membrane inlet mass spectrometry, by the controlled addition of carbon source. At a feed pump switching threshold equivalent to 1 μmol/1 H 2 a steady state rate of methanogenesis of approximately 40 μmol/1/min was obtained. Higher H 2 thresholds resulted in an inhibition of methanogenesis, but precise control of H 2 concentration was demonstrated with an oscillatory response of period 2·5–5·0 min.