The degradation of 2,4,6,-trichlorophenol (2,4,6-TCP), 2,3,4,6-tetra-chlorophenol (2,3,4,6-TeCP) and pentachlorophenol (PCP) was evaluated in oxic fluidized-bed reactors. The pseudo-steady-state reactor operation at a hydraulic retention time of 5 hours and feed concentrations of 54 mg/l of 2,4,6-TCP and 64 mg/l of 2,3,4,6-TeCP resulted in stable and effective removal performances on these compounds. GC/MS results indicated over 99 % removal of both 2,4,6-TCP and 2,3,4,6-TeCP. However, PCP degradation at 74 mg/l feed concentration was neglible under these conditions. Further, a denitrifying biofilm was developed which was able to use 4-chlorophenol (4-CP) as the sole electron donor in denitrification reactions. No anoxie biofilm able to degrade 2,4-dichlorophenol (2,4-DCP) or PCP degradation in the presence of potassium nitrate could be developed.
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Research Article|
January 01 1992
Chlorophenol Degradation under Oxic and Anoxic Conditions Available to Purchase
Jaakko A. Puhakka;
Jaakko A. Puhakka
*Institute of Water and Environmental Engineering, Tampere University of Technology, P.O. Box 527, SF-33101 Tampere, Finland
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Wen K. Shieh;
Wen K. Shieh
**Department of Systems, University of Pennsylvania, Philadelphia, PA 19104-6315, USA
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Kimmo Järvinen;
Kimmo Järvinen
*Institute of Water and Environmental Engineering, Tampere University of Technology, P.O. Box 527, SF-33101 Tampere, Finland
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Esa Melin
Esa Melin
*Institute of Water and Environmental Engineering, Tampere University of Technology, P.O. Box 527, SF-33101 Tampere, Finland
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Water Sci Technol (1992) 25 (1): 147–152.
Citation
Jaakko A. Puhakka, Wen K. Shieh, Kimmo Järvinen, Esa Melin; Chlorophenol Degradation under Oxic and Anoxic Conditions. Water Sci Technol 1 January 1992; 25 (1): 147–152. doi: https://doi.org/10.2166/wst.1992.0022
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