Inhibition kinetics during the oxidation of binary mixtures of phenol with catechol, resorcinol and hydroquinone by phenol acclimated activated sludge

In this work the aerobic degradation of phenol (PH), catechol (CA), resorcinol (RE), hydroquinone (HY) and of the binary mixtures PH+CA, PH+RE, PH+HY by phenol-acclimated activated sludge was studied. Single substrate experiments show a Haldane-type dependence of the respiration rate on PH, RE and H...

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Autores principales: Lobo, Cintia Cecilia, Bértola, Nora Cristina, Contreras, E. M.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Química
Activated sludge
Biodegradation
Mathematical model
Phenolic compounds
Respirometry
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86079
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-86079
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Activated sludge
Biodegradation
Mathematical model
Phenolic compounds
Respirometry
spellingShingle Química
Activated sludge
Biodegradation
Mathematical model
Phenolic compounds
Respirometry
Lobo, Cintia Cecilia
Bértola, Nora Cristina
Contreras, E. M.
Inhibition kinetics during the oxidation of binary mixtures of phenol with catechol, resorcinol and hydroquinone by phenol acclimated activated sludge
topic_facet Química
Activated sludge
Biodegradation
Mathematical model
Phenolic compounds
Respirometry
description In this work the aerobic degradation of phenol (PH), catechol (CA), resorcinol (RE), hydroquinone (HY) and of the binary mixtures PH+CA, PH+RE, PH+HY by phenol-acclimated activated sludge was studied. Single substrate experiments show a Haldane-type dependence of the respiration rate on PH, RE and HY, while CA corresponded to the Monod model. Binary substrate experiments demonstrated that the presence of a second substrate only affected the kinetics, but not the stoichiometry of the oxidation of the compounds tested. While CA inhibited the oxidation of PH, PH inhibited the oxidation of RE and HY. A mathematical model was developed to represent the aerobic biodegradation of the phenolic compounds tested. The agreement between the proposed model and the experimental data indicates that the proposed model can be useful for predicting substrate and dissolved oxygen concentrations in bioreactors treating phenolic wastewaters.
format Articulo
Articulo
author Lobo, Cintia Cecilia
Bértola, Nora Cristina
Contreras, E. M.
author_facet Lobo, Cintia Cecilia
Bértola, Nora Cristina
Contreras, E. M.
author_sort Lobo, Cintia Cecilia
title Inhibition kinetics during the oxidation of binary mixtures of phenol with catechol, resorcinol and hydroquinone by phenol acclimated activated sludge
title_short Inhibition kinetics during the oxidation of binary mixtures of phenol with catechol, resorcinol and hydroquinone by phenol acclimated activated sludge
title_full Inhibition kinetics during the oxidation of binary mixtures of phenol with catechol, resorcinol and hydroquinone by phenol acclimated activated sludge
title_fullStr Inhibition kinetics during the oxidation of binary mixtures of phenol with catechol, resorcinol and hydroquinone by phenol acclimated activated sludge
title_full_unstemmed Inhibition kinetics during the oxidation of binary mixtures of phenol with catechol, resorcinol and hydroquinone by phenol acclimated activated sludge
title_sort inhibition kinetics during the oxidation of binary mixtures of phenol with catechol, resorcinol and hydroquinone by phenol acclimated activated sludge
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/86079
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