Operation of an Anammox SBR in the presence of two broad-spectrum antibiotics

I. Fernández, A. Mosquera-Corral, J. L. Campos, R. Méndez

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

89 Citas (Scopus)

Resumen

The feasibility of the anaerobic ammonium oxidation (Anammox) process to treat wastewaters containing antibiotics was studied in this work. Concentrations ranging from 100 to 1000 mg L-1 for tetracycline hydrochloride and from 250 to 1000 mg L-1 for chloramphenicol were tested in batch assays. A strong inhibitory effect was observed for both antibiotics. A concentration of 20 mg L-1 of chloramphenicol was continuously added to an Anammox Sequential Batch Reactor (SBR) system, causing a decrease of the nitrogen removal efficiency of 25%. The Specific Anammox Activity (SAA) of the biomass also decreased from 0.25 to 0.05 g N (g VSS d)-1. Similar effects were observed when 50 mg L-1 of tetracycline hydrochloride were continuously fed. Both antibiotics did not cause any changes in the physical properties of the biomass. A previous degradation step could be necessary in order to treat wastewaters containing inhibitory concentrations of antibiotics by the Anammox process.

Idioma originalInglés
Páginas (desde-hasta)494-498
Número de páginas5
PublicaciónProcess Biochemistry
Volumen44
N.º4
DOI
EstadoPublicada - abr. 2009
Publicado de forma externa

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