Removal of ammonia by immobilized Nitrosomonas europaea in a biotrickling filter packed with polyurethane foam

Martín Ramírez, José Manuel Gómez, Germán Aroca, Domingo Cantero

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

34 Citas (Scopus)

Resumen

A biotrickling filter with Nitrosomonas europaea immobilized on polyurethane foam is proposed for treating ammonia contaminated air. The effect of the surface velocity of the recirculation medium, nitrite concentration, pH, empty bed residence time (EBRT) and ammonia inlet load on the NH3 removal process was investigated. The total amount of biomass immobilized on the carrier was 3.29 ± 0.52 × 1010 cells g-1 dry carrier. The maximum elimination capacity of the biotrickling filter was 270 g N m-3 h-1 at pH 7.5, an EBRT of 11 s, and nitrite concentrations below 100 mM. These results show that system studied can be considered as a viable alternative for the treatment of gaseous emissions containing high concentrations of ammonia.

Idioma originalInglés
Páginas (desde-hasta)1385-1390
Número de páginas6
PublicaciónChemosphere
Volumen74
N.º10
DOI
EstadoPublicada - mar. 2009
Publicado de forma externa

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