Sequentially alternating pollutant scenarios of phenolic compounds in a continuous aerobic granular sludge reactor performing simultaneous partial nitritation and o-cresol biodegradation
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)
| Fecha: |
2014 |
| Resumen: |
Industrial wastewater treatment plants must operate properly during the transient-state conditions often found in the industrial production. This study presents the performance of simultaneous partial nitritation and o-cresol biodegradation in a continuous aerobic granular reactor under sequentially alternating pollutant (SAP) scenarios. Three SAP scenarios were imposed during the operation of the granular reactor. In each one, a secondary recalcitrant compound (either p-nitrophenol (PNP), phenol or 2-chlorophenol (2CP)) were added for a short period of time to the regular influent containing only ammonium and o-cresol. Partial nitritation and o-cresol biodegradation were not inhibited by the presence of PNP or phenol and both compounds were fully biodegraded. On the contrary, the presence of 2CP strongly inhibited both processes within 2 days. However, the reactor was recovered in a few days. These findings demonstrate that treatment of complex industrial wastewaters with variable influent composition is feasible in a continuous aerobic granular reactor. |
| Ayudas: |
Ministerio de Economía y Competitividad CTQ2011-24745/PPQ
|
| Derechos: |
Tots els drets reservats.  |
| Lengua: |
Anglès |
| Documento: |
Article ; recerca ; Versió acceptada per publicar |
| Materia: |
Partial nitrification ;
Aerobic granules ;
P-nitrophenol ;
Phenol ;
2-Chlorophenol |
| Publicado en: |
Bioresource technology, Vol. 161 (June 2014) , p. 354-361, ISSN 0960-8524 |
DOI: 10.1016/j.biortech.2014.03.071
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