volume 46, issue 4, P257-266 2007
DOI: 10.1002/jctb.280460402
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Abstract: A B S T R A C TThe specific activity of ucetotrophic methanogens and the physical behaviour of grunulur sludge in laboratory-scale upjlow unuerobic sludge bed ( U A S B ) reactors subjected to shock loads of lauric acid in the absence and presence of' calcium were studied. I n the absence of calcium, lauric acid completely inhibited acetotrophic methunogens above a threshold level of 100 my C,2,0 dm-', whereas no inhibition occurred below this threshold concentration. Addition of an equivalent amount of calci…

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