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Pàgina inicial > Articles > Articles publicats > Long-term performance and stability of a continuous granular airlift reactor treating a high-strength wastewater containing a mixture of aromatic compounds |
Data: | 2016 |
Resum: | Continuous feeding operation of an airlift reactor and its inoculation with mature aerobic granules allowed the successful treatment of a mixture of aromatic compounds (p-nitrophenol, o-cresol and phenol). Complete biodegradation of p-nitrophenol, o-cresol, phenol and their metabolic intermediates was achieved at an organic loading rate of 0. 61 g COD L⁻¹ d⁻¹. Stable granulation was obtained throughout the long-term operation (400 days) achieving an average granule size of 2. 0±1 mm and a sludge volumetric index of 26±1 mL g⁻¹ TSS. The identified genera in the aerobic granular biomass were heterotrophic bacteria able to consume aromatic compounds. Therefore, the continuous feeding regimen and the exposure of aerobic granules to a mixture of aromatic compounds make possible to obtain good granulation and high removal efficiency. |
Ajuts: | Ministerio de Educación y Ciencia CTQ2011-24745/PPQ Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-1255 |
Drets: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió acceptada per publicar |
Matèria: | Aerobic granules ; Airlift reactor ; Phenolic compounds ; Industrial wastewaters |
Publicat a: | Journal of hazardous materials, Vol. 303 (Feb. 2016) , p. 154-161, ISSN 0304-3894 |
Post-print 26 p, 1.5 MB |