Correlation Engine 2.0
Clear Search sequence regions


  • 2 cresol (1)
  • 2 cresol (7)
  • aerobiosis (1)
  • ammonia (1)
  • ammonium (3)
  • biomass (3)
  • bioreactors (1)
  • cresols (2)
  • kind (1)
  • p nitrophenol (1)
  • Sizes of these terms reflect their relevance to your search.

    Several chemical industries produce wastewaters containing both, ammonium and phenolic compounds. As an alternative to treat this kind of complex industrial wastewaters, this study presents the simultaneous partial nitritation and o-cresol biodegradation in a continuous airlift reactor using aerobic granular biomass. An aerobic granular sludge was developed in the airlift reactor for treating a high-strength ammonium wastewater containing 950 ± 25 mg N-NH4(+) L(-1). Then, the airlift reactor was bioaugmented with a p-nitrophenol-degrading activated sludge and o-cresol was added progressively to the ammonium feed to achieve 100 mg L(-1). The results showed that stable partial nitritation and full biodegradation of o-cresol were simultaneously maintained obtaining a suitable effluent for a subsequent anammox reactor. Moreover, two o-cresol shock-load events with concentrations of 300 and 1000 mg L(-1) were applied to assess the capabilities of the system. Despite these shock load events, the partial nitritation process was kept stable and o-cresol was totally biodegraded. Fluorescence in situ hybridization technique was used to identify the heterotrophic bacteria related to o-cresol biodegradation and the ammonia oxidising bacteria along the granules. Copyright © 2013 Elsevier Ltd. All rights reserved.

    Citation

    Zulkifly Jemaat, María Eugenia Suárez-Ojeda, Julio Pérez, Julián Carrera. Partial nitritation and o-cresol removal with aerobic granular biomass in a continuous airlift reactor. Water research. 2014 Jan 1;48:354-62

    Expand section icon Mesh Tags

    Expand section icon Substances


    PMID: 24140352

    View Full Text