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Pàgina inicial > Articles > Articles publicats > Efficient and automated start-up of a pilot reactor for nitritation of reject water : |
Data: | 2013 |
Resum: | An automated sequencing batch reactor operation based on online measurement of the ammonium concentration was investigated as a tool for improving the start-up of a nitrifying granular airlift reactor. The effectiveness of this start-up procedure was verified with the characteristics of the developed granular sludge but also the improvement of the start-up was confirmed when comparing with the results achieved with two continuous-mode start-up strategies. Once a stable granular biomass was obtained, the reactor started to operate in continuous mode during more than 100 days, maintaining the characteristics of the granular biomass and achieving a nitrogen loading rate of 1. 75 g N L⁻¹ d⁻¹. The intermittent recirculation of small flocs of nitrifying biomass was explored as an alternative to increase the biomass concentration in the reactor and consequently, to increase the treated loading rate. |
Ajuts: | Ministerio de Economía y Competitividad CTQ2011-24745/PPQ Agència de Gestió d'Ajuts Universitaris i de Recerca 2010/VALOR0096 |
Drets: | Tots els drets reservats. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió acceptada per publicar |
Matèria: | Airlift reactor ; Biofilm ; Granular sludge ; Online TAN measurement ; Partial nitrification |
Publicat a: | Chemical engineering journal, Vol. 226 (June 2013) , p. 319-325, ISSN 1873-3212 |
Post-print 25 p, 1.9 MB |