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Evaluation of a membrane bioreactor system as post-treatment in waste water treatment for better removal of micropollutants
SONIA LORENA ARRIAGA GARCIA
Nadieh de Jonge
Marc Lund Nielsen
Henrik Rasmus Andersen
Vibeke R Borregaard
Kevin Jewel
Thomas A Ternes
Jeppe Lund Nielsen
Acceso Abierto
Atribución-NoComercial-SinDerivadas
https://doi.org/10.1016/j.watres.2016.10.046
Membrane reactor
Polishing step
Emerging organic
Micropollutants
"Organic micropollutants (OMPs) such as pharmaceuticals are persistent pollutants that are only partially degraded in waste water treatment plants (WWTPs). In this study, a membrane bioreactor (MBR) system was used as a polishing step on a full-scale WWTP, and its ability to remove micropollutants was examined together with the development and stability of the microbial community. Two stages of operation were studied during a period of 9 months, one with (S1) and one without (S2) the addition of exogenous OMPs. Ibuprofen and naproxen had the highest degradation rates with values of 248 ?g/gVSS·h and 71 ?g/gVSS·h, whereas diclofenac was a more persistent OMP (7.28 ?g/gVSS·h). Mineralization of 14C-labeled OMPs in batch kinetic experiments indicates that higher removal rates (?0.8 ng/mgTSS·h) with a short lag phase can be obtained when artificial addition of organic micropollutants was performed. Similar microbial populations dominated S1 and S2, despite the independent operations. Hydrogenophaga, Nitrospira, p55-a5, the actinobacterial Tetrasphaera, Propionicimonas, Fodinicola, and Candidatus Microthrix were the most abundant groups in the polishing MBR. Finally, potential microbial candidates for ibuprofen and naproxen degradation are proposed."
Elsevier
2016
Artículo
Sonia Arriaga, Nadieh de Jonge, Marc Lund Nielsen, Henrik Rasmus Andersen, Vibeke Borregaard, Kevin Jewel, Thomas A. Ternes, Jeppe Lund Nielsen, Evaluation of a membrane bioreactor system as post-treatment in waste water treatment for better removal of micropollutants, Water Research, Volume 107, 2016, Pages 37-46.
INGENIERÍA Y TECNOLOGÍA
Versión aceptada
acceptedVersion - Versión aceptada
Aparece en las colecciones: Publicaciones Científicas Ciencias Ambientales

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