Bioaugmentation of a rotating biological contactor for degradation of 2-fluorophenol.

Abstract

The performance of a laboratory scale rotating biological contactor (RBC) towards shock loadings of 2-fluorophenol (2-FP) was investigated. During a period of ca. 2 months organic shock loadings of 25 mg L⁻¹ of 2-FP were applied to the RBC. As no biodegradation of 2-FP was observed, bioaugmentation of the RBC with a 2-FP degrading strain was carried out and, along ca. 6 months, organic shock loadings within a range of 25-200 mg L⁻¹ of 2-FP were applied. Complete biodegradation of 50 mg L⁻¹ of 2-FP was observed during operation of the reactor. The RBC showed to be robust towards starvation periods, as after ca. 1month of non-supply of the target compound, the reactor resumed 2-FP degradation. The inoculated strain was retained within the biofilm in the disks, as the 2-FP degrading strain was recovered from the biofilm by the end of the experiment, thus bioaugmentation was successfully achieved.

• Authors: Anouk F Duque, Vânia S Bessa, Maria F Carvalho, Paula M L Castro
• Journal: Bioresource technology (Bioresour Technol) Vol. 102 Issue 19 Pg. 9300-3 (Oct 2011) ISSN: 1873-2976 [Electronic] England
• PMID: 21803579 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2011 Elsevier Ltd. All rights reserved.

Chemical References

• Phenols
• RNA, Ribosomal, 16S
• 2-fluorophenol

Topics

• Bacteria (genetics, metabolism)
• Biodegradation, Environmental
• Biofilms (growth & development)
• Bioreactors (microbiology)
• Computational Biology
• Phenols (metabolism)
• Phylogeny
• RNA, Ribosomal, 16S (genetics)
• Sequence Analysis, DNA
• Time Factors