Modeling of the denitrification/anaerobic digestion process of salmon fishery wastewater in a biofilm tubular reactor

César Huiliñir*, Estrella Aspé, Marlene Roeckel

*Autor correspondiente de este trabajo

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

23 Citas (Scopus)

Resumen

The literature has paid scarce attention to the modeling of the denitrification-anaerobic digestion process in packed bed biofilm tubular reactors used to treat wastewater. The present study obtained a steady-state model for industrial salmon fishery wastewater treatment in a biofilm tubular reactor, including pH as a variable and the effect of biomass on hydrolysis. The axial profile of the reactor components and process efficiency were predicted with deviations below 6%. The optimal operating zone for the process was found at hydraulic retention time (HRT)>1.5d and inlet protein concentration (Sprot,0)<3000mgTOCL-1. Based on our results, we concluded that the removal of organic matter and nitrogen compounds depended mainly on HRT. The effluent pH was mainly affected by the C/N ratio, where a decrease increases pH. Organic matter removal was related with the anaerobic digestion process, while denitrification influenced mostly nitrate and nitrite removal.

Idioma originalInglés
Páginas (desde-hasta)1591-1608
Número de páginas18
PublicaciónJournal of Environmental Management
Volumen92
N.º6
DOI
EstadoPublicada - jun. 2011
Publicado de forma externa

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