Simultaneous partial nitrification and 2-fluorophenol biodegradation with aerobic granular biomass: Reactor performance and microbial communities

Carlos Ramos, Catarina L. Amorim, Daniela P. Mesquita, Eugénio C. Ferreira, Julián Carrera, Paula M.L. Castro

Research output: Contribution to journalArticleResearchpeer-review

11 Citations (Scopus)

Abstract

© 2017 Elsevier Ltd An aerobic granular bioreactor was operated for over 4 months, treating a synthetic wastewater with a high ammonium content (100 mg N L −1 ). The inoculum was collected from a bioreactor performing simultaneous partial nitrification and aromatic compounds biodegradation. From day-56 onwards, 2-fluorophenol (2-FP) (12.4 mg L −1 ) was added to the feeding wastewater and the system was bioaugmented with a 2-FP degrading bacteria (Rhodococcus sp. FP1). By the end of operation, complete 2-FP biodegradation and partial nitrification were simultaneously achieved. Aerobic granules remained stable over time. During the 2-FP loading, a shift in the community structure occurred, coinciding with the improvement of 2-FP degradation. DGGE analysis did not allow to infer on the bioaugmented strain presence but pyrosequencing analysis detected Rhodococcus genus by the end of operation. Together with other potential phenolic-degraders within granules, these microorganisms were probably responsible for 2-FP degradation.
Original languageEnglish
Pages (from-to)232-240
JournalBioresource Technology
Volume238
DOIs
Publication statusPublished - 1 Jan 2017

Keywords

  • Bioaugmentation
  • Granulation
  • Molecular biology
  • Nitritation
  • Phenolic compound

Fingerprint Dive into the research topics of 'Simultaneous partial nitrification and 2-fluorophenol biodegradation with aerobic granular biomass: Reactor performance and microbial communities'. Together they form a unique fingerprint.

Cite this