Per citar aquest document: http://ddd.uab.cat/record/163770
Effect of cerium dioxide, titanium dioxide, silver, and gold nanoparticles on the activity of microbial communities intended in wastewater treatment
García, Ana (Universitat Autònoma de Barcelona. Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)
Delgado Ramisa, Lucía (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)
Torà Suárez, Josep Anton (Universitat Autònoma de Barcelona. Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)
Casals Mercadal, Eudald (Institut Català de Nanotecnologia)
González, Edgar (Institut Català de Nanotecnologia)
Puntes, Víctor (Institut Català de Nanotecnologia)
Font i Segura, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)
Sánchez Ferrer, Antoni (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)
Carrera, Julián (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química)

Data: 2012
Resum: Growth in production and use of nanoparticles (NPs) will result increased concentrations of these in industrial and urban wastewaters and, consequently, in wastewater-treatment facilities. The effect of this increase on the performance of the wastewater-treatment process has not been studied systematically and including all the microbial communities involved in wastewater treatment. The present work investigates, by using respiration tests and biogas-production analysis, the inhibitory effect of four different commonly used metal oxide (CeO₂ and TiO₂) and zero-valent metal (Ag and Au) nanoparticles on the activity of the most important microbial communities present in a modern wastewater-treatment plant. Specifically, the actions of ordinary heterotrophic organisms, ammonia oxidizing bacteria, and thermophilic and mesophilic anaerobic bacteria were tested in the presence and absence of the nanoparticles. In general, CeO₂ nanoparticles caused the greatest inhibition in biogas production (nearly 100%) and a strong inhibitory action of other biomasses; Ag nanoparticles caused an intermediate inhibition in biogas production (within 33–50%) and a slight inhibition in the action of other biomasses, and Au and TiO₂ nanoparticles caused only slight or no inhibition for all tested biomasses.
Nota: Financial support was provided by the Spanish Ministerio de Medio Ambiente y Medio Rural y Marino (Project Exp. 007/RN08/03.1).
Nota: Número d'acord de subvenció MAPAMA/007/RN08/03.1
Drets: Tots els drets reservats
Llengua: Anglès
Document: article ; recerca ; submittedVersion
Matèria: Inorganic nanoparticles ; Inhibition ; Respirometry ; Anaerobic biomass ; Ammonia oxidizing bacteria ; Ordinary heterotrophic organisms
Publicat a: Journal of hazardous materials, Vol. 199–200 (Jan. 2012) , p. 64–72, ISSN 0304-3894

DOI: 10.1016/j.jhazmat.2011.10.057


Pre-print
36 p, 6.1 MB

El registre apareix a les col·leccions:
Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Enginyeries > Grup de Recerca en Compostatge (GICOM)
Articles > Articles de recerca
Articles > Articles publicats

 Registre creat el 2016-09-12, darrera modificació el 2016-11-29



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