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  • Title: Kinetics of methanogenic degradation of phenol by activated-carbon-supported and granular biomass.
    Author: Craik SA, Fedorak PM, Hrudey SE, Gray MR.
    Journal: Biotechnol Bioeng; 1992 Oct 05; 40(7):777-86. PubMed ID: 18601181.
    Abstract:
    A continuous-feed recycle bioreactor was used to study the kinetics of methanogenic degradation of phenol at 35 degrees C by bacteria supported on a bed of granular activated carbon (GAC). At dilution rates well above the growth rate of the culture, the cells not only populated the GAC, but also formed a layer of granular biomass. This layer was stabilized by the presence of the GAC, and accounted for over half of the phenol-degrading activity in the bioreactor. The specific phenol degradation rates for GAC-attached biomass, suspended biomass, and granular biomass were all in the range 0.15 to 0.22 mg phenol/mg volatile solids per day as measured under pseudo-steady-state conditions.
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