Partial Control of a Continuous Bioreactor: Application to an Anaerobic System for Heavy Metal Removal

This work presents a control strategy for a continuous bioreactor for heavy metal removal. For this aim, regulation of the sulfate concentration, which is considered the measured and controlled state variable, allowed diminishing the cadmium concentration in the bioreactor, where the corresponding c...

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Main Authors: M. I. Neria-González, P. A. López-Pérez, R. Aguilar-López
Format: Article
Language:English
Published: Hindawi Limited 2016-01-01
Series:Journal of Engineering
Online Access:http://dx.doi.org/10.1155/2016/4358282
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spelling doaj-47ae947f39984f67bea6081afde3668a2020-11-24T20:43:30ZengHindawi LimitedJournal of Engineering2314-49042314-49122016-01-01201610.1155/2016/43582824358282Partial Control of a Continuous Bioreactor: Application to an Anaerobic System for Heavy Metal RemovalM. I. Neria-González0P. A. López-Pérez1R. Aguilar-López2Chemical & Biochemical Engineering Division, Tecnológico de Estudios Superiores de Ecatepec, Avenida Tecnologico S/N, Valle de Anahuac, 55210 Ecatepec de Morelos, MEX, MexicoEscuela Superior de Apan, Universidad Autónoma del Estado de Hidalgo, Carretera Apan-Calpulalpan, Km 8, Chimalpa Tlalayote S/N, Colonia Chamilpa, 43900 Apan, HGO, MexicoBiotechnology and Bioengineering Department, CINVESTAV-IPN, Avenida Instituto Politécnico Nacional 2508, San Pedro Zacatenco, 07360 Mexico City, MEX, MexicoThis work presents a control strategy for a continuous bioreactor for heavy metal removal. For this aim, regulation of the sulfate concentration, which is considered the measured and controlled state variable, allowed diminishing the cadmium concentration in the bioreactor, where the corresponding controller was designed via nonlinear bounded function. Furthermore, a nonlinear controllability analysis was done, which proved the closed-loop instability of the inner or uncontrolled dynamics of the bioreactor. A mathematical model, experimentally corroborated for cadmium removal, was employed as a benchmark for the proposed controller. Numerical experiments clearly illustrated the successful implementation of this methodology; therefore, cadmium removal amounted to more than 99%, when the initial cadmium concentration was up to 170 mg/L in continuous operating mode.http://dx.doi.org/10.1155/2016/4358282
collection DOAJ
language English
format Article
sources DOAJ
author M. I. Neria-González
P. A. López-Pérez
R. Aguilar-López
spellingShingle M. I. Neria-González
P. A. López-Pérez
R. Aguilar-López
Partial Control of a Continuous Bioreactor: Application to an Anaerobic System for Heavy Metal Removal
Journal of Engineering
author_facet M. I. Neria-González
P. A. López-Pérez
R. Aguilar-López
author_sort M. I. Neria-González
title Partial Control of a Continuous Bioreactor: Application to an Anaerobic System for Heavy Metal Removal
title_short Partial Control of a Continuous Bioreactor: Application to an Anaerobic System for Heavy Metal Removal
title_full Partial Control of a Continuous Bioreactor: Application to an Anaerobic System for Heavy Metal Removal
title_fullStr Partial Control of a Continuous Bioreactor: Application to an Anaerobic System for Heavy Metal Removal
title_full_unstemmed Partial Control of a Continuous Bioreactor: Application to an Anaerobic System for Heavy Metal Removal
title_sort partial control of a continuous bioreactor: application to an anaerobic system for heavy metal removal
publisher Hindawi Limited
series Journal of Engineering
issn 2314-4904
2314-4912
publishDate 2016-01-01
description This work presents a control strategy for a continuous bioreactor for heavy metal removal. For this aim, regulation of the sulfate concentration, which is considered the measured and controlled state variable, allowed diminishing the cadmium concentration in the bioreactor, where the corresponding controller was designed via nonlinear bounded function. Furthermore, a nonlinear controllability analysis was done, which proved the closed-loop instability of the inner or uncontrolled dynamics of the bioreactor. A mathematical model, experimentally corroborated for cadmium removal, was employed as a benchmark for the proposed controller. Numerical experiments clearly illustrated the successful implementation of this methodology; therefore, cadmium removal amounted to more than 99%, when the initial cadmium concentration was up to 170 mg/L in continuous operating mode.
url http://dx.doi.org/10.1155/2016/4358282
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AT palopezperez partialcontrolofacontinuousbioreactorapplicationtoananaerobicsystemforheavymetalremoval
AT raguilarlopez partialcontrolofacontinuousbioreactorapplicationtoananaerobicsystemforheavymetalremoval
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