Aerobic biodegradation of a mixture of monosubstituted phenols in a sequencing batch reactor

Web of Science: 23 cites, Scopus: 22 cites, Google Scholar: cites

(Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Suárez Ojeda, María Eugenia

(Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Pérez Cañestro, Julio

(Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Carrera, Julian

(Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)

Data:	2013
Resum:	A sequencing batch reactor (SBR) was inoculated with p-nitrophenol-degrading activated sludge to biodegrade a mixture of monosubstituted phenols: p-nitrophenol (PNP), PNP and o-cresol; and PNP, o-cresol and o-chlorophenol. Settling times were progressively decreased to promote biomass granulation. PNP was completely biodegraded. The PNP and o-cresol mixture was also biodegraded although some transitory accumulation of intermediates occurred (mainly hydroquinone and catechol). o-Chlorophenol was not biodegraded and resulted in inhibition of o-cresol and PNP biodegradation and complete failure of the SBR within a few days. The biomass had very good settling properties when a settling time of 1 min was applied: sludge volume index (SVI₅) below 50 mL g⁻¹, SVI₅/SVI₃₀ ratio of 1 and average particle size of 200 μm.
Ajuts:	Ministerio de Economía y Competitividad CTQ2011-24745/PPQ Agència de Gestió d'Ajuts Universitaris i de Recerca 2009/SGR-815
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Matèria:	Aerobic biodegradation ; P-nitrophenol ; O-chlorophenol ; O-cresol ; Sequencing batch reactor
Publicat a:	Journal of hazardous materials, Vol. 260 (Sep. 2013) , p. 563-568, ISSN 1873-3336

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Registre creat el 2016-11-21, darrera modificació el 2024-04-28