Repositorio UFRO · Omeka S

Actuators monitoring system for real-time control of nitrification-denitrification via nitrite on long term operation

Primer Autor	Antileo, Christian
Co-autores	Medina, Hardy Bornhardt, Cristian Munoz, Carlos Jaramillo, Francisco Proal, Jose
Título	Actuators monitoring system for real-time control of nitrification-denitrification via nitrite on long term operation
Editorial	ELSEVIER SCIENCE SA
Revista	CHEMICAL ENGINEERING JOURNAL
Lenguaje	en
Resumen	A real-time control strategy for SBR was designed in order to control the length of the reaction phases for an integrated nitrification-denitrification process via nitrite, by using an actuators monitoring system instead of monitoring pH or oxygen signals. The real-time control strategy was validated during 220 days at a low dissolved oxygen concentration (1-2.0 mg/L), C/N ratio of 1-2 g COD/g N, and at initial ammonia nitrogen concentrations in a range of 50-600 mg NIL The aerobic reaction was conducted under control of pH and dissolved oxygen concentration and their manipulated variables: air valve opening and inorganic carbon consumption were used to detect bending points and the end of nitrification, whereas ORP and pH curves were used to detect the end of denitrification. This strategy led to a removal of total nitrogen over 94%, with a nitrite accumulation of 80% and a simultaneous nitrification denitrification of up to 60%. Additionally, a dosage strategy of adding external carbon during denitrification was developed by evaluating the pH derivative, and it was found that the anoxic time was able to reach values as low as 8% of the total reaction time. (C) 2013 Elsevier B.V. All rights reserved.
Tipo de Recurso	Artículo original
Description	The financial support by research grant FONDECYT Nr. 1070574, DI12-0088 (Universidad de La Frontera) is gratefully acknowledged. Se agradece el apoyo financiero recibido a través de la beca de investigación FONDECYT Nr. 1070574, DI12-0088 (Universidad de La Frontera).
doi	10.1016/j.cej.2013.02.079
Formato Recurso	pdf
Palabras Claves	Nitrification-denitrification Real-time control Bending points Oxygen control Actuators SBR BIOLOGICAL NITROGEN REMOVAL SEQUENCING BATCH REACTORS DOMESTIC WASTE-WATER CONTROL STRATEGY DISSOLVED-OXYGEN SBR ORP ACCUMULATION MANAGEMENT PROFILES Nitrificación-desnitrificación Control en tiempo real Puntos de inflexión Control de oxígeno Actuadores SBR ELIMINACIÓN BIOLÓGICA DE NITRÓGENO REACTORES SECUENCIALES POR LOTES AGUAS RESIDUALES DOMÉSTICAS ESTRATEGIA DE CONTROL OXÍGENO DISUELTO SBR ORP ACUMULACIÓN GESTIÓN PERFILES
Ubicación del archivo	http://dx.doi.org/10.1016/j.cej.2013.02.079
Materias	Nitrification-denitrification Real-time control Bending points Oxygen control Actuators SBR BIOLOGICAL NITROGEN REMOVAL SEQUENCING BATCH REACTORS DOMESTIC WASTE-WATER CONTROL STRATEGY DISSOLVED-OXYGEN SBR ORP ACCUMULATION MANAGEMENT PROFILES Nitrificación-desnitrificación Control en tiempo real Puntos de inflexión Control de oxígeno Actuadores SBR ELIMINACIÓN BIOLÓGICA DE NITRÓGENO REACTORES SECUENCIALES POR LOTES AGUAS RESIDUALES DOMÉSTICAS ESTRATEGIA DE CONTROL OXÍGENO DISUELTO SBR ORP ACUMULACIÓN GESTIÓN PERFILES
Disciplinas de la OCDE	Biotecnología Ambiental Biorremediación Ingeniería Ambiental y Geológica
Título de la cita (Recomendado-único)	Actuators monitoring system for real-time control of nitrification-denitrification via nitrite on long term operation
Revista/Libro	CHEMICAL ENGINEERING JOURNAL
Tipo de ruta	hibrida verde
Access Rights	metadata
Derechos de acceso	metadata
Idioma	en
Identificador del recurso (Mandatado-único)	Artículo original
Versión del recurso (Recomendado-único)	versión publicada
Entidad financiadora	ANID CONICYT FONDECYT 1070574#UFRO DI12-0088
Referencia del Financiador (Mandatado si es aplicable-repetible)	ANID CONICYT FONDECYT 1070574 UFRO DI12-0088
Editorial	ELSEVIER SCIENCE SA
ISSN	1385-8947
Página de inicio (Recomendado-único)	467
Página final (Recomendado-único)	478
Categoría WOS	Ingeniería ambiental Ingeniería química Engineering, Environmental Engineering, Chemical
Formato	pdf
Id de Web of Science	WOS:000320631200053