Journal
BIORESOURCE TECHNOLOGY
Volume 102, Issue 19, Pages 9300-9303Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.07.003
Keywords
Rotating biological contactor (RBC); 2-Fluorophenol (2-FP); Bioaugmentation; Biodegradation
Funding
- Fundacao para a Ciencia e Tecnologia (FCT), Portugal [SFRH/BD/30771/2006, SFRH/BPD/44670/2008]
- Fundo Social Europeu (III Quadro Comunitario de Apoio)
- [PTDC/BIO/67306/2006]
- Fundação para a Ciência e a Tecnologia [PTDC/BIO/67306/2006, SFRH/BD/30771/2006, SFRH/BPD/44670/2008] Funding Source: FCT
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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. 1 month 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. (C) 2011 Elsevier Ltd. All rights reserved.
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