Kinetics of methanogenic degradation of phenol by activated-carbon-supported and granular biomass |
| |
Authors: | Craik S A Fedorak P M Hrudey S E Gray M R |
| |
Institution: | Departments of Chemical Engineering, University of Alberta, Edmonton, AB T6G 2G3. |
| |
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. (c) 1992 John Wiley & Sons, Inc. |
| |
Keywords: | phenol degradation methanogensesis activated carbon |
本文献已被 PubMed 等数据库收录! |
|