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Modelo dinamico del proceso secundario de depuración de aguas residuales urbanas

Authors: Gil Rodríguez, Manuel;

Modelo dinamico del proceso secundario de depuración de aguas residuales urbanas

Abstract

En este trabajo se presenta la metodología de la obtención de las ecuaciones que describen el tratamiento secundario de plantas depuradoras de aguas residuales urbanas. Se muestra la cinética de la reacción de biodegradación en la que se propone la introducción de la edad de lodos en la tasa máxima de crecimiento, para generalización desde el proceso clásico de lodos activos hasta la aireación extendida. En este trabajo se muestra la aplicación de balances de materia e hipótesis de trabajo para la obtención de las ecuaciones que describen el comportamiento der reactor aerobio y del sedimentador secundario, introduciendo las hipótesis del mecanismo de separación y de los lodos y la determinación de los volúmenes de las zonas de clarificación y sedimentación del clarificador final. Se muestra gráficamente el resultado de una simulación del proceso con el modelo matemático aquí presentado.

This paper presents the methodology for obtaining equations which describe the secondary treatment of urban wastewater treatment plants. The kinetics of the biodegradation reaction are shown, and a proposal is made to include the sludge age in the maximum specific growth rate, in order to generalize from the classic process of activated sludge to that of extended aeration. The application of a mass balance to the aerobic reactor is shown, in order to obtain equations which describe its behavior.We will introduce a working hypothesis of the sludge settling mechanism to determine volumes of clarification and sedimentation zones of the final clarifier, in order to obtain equations describing it. A graphic demonstration is provided with the results of activated sludge process simulation using the mathematical model presented here.

Peer Reviewed

Country
Spain
Keywords

Numerical Methods, :Matemàtiques i estadística::Anàlisi numèrica::Mètodes numèrics [Àrees temàtiques de la UPC], Dinàmica, Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes numèrics

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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