Simultaneous biodegradation of bisphenol A and a biogenic substrate in semi-continuous activated sludge reactors

In this work, the simultaneous degradation of BPA and cheese whey (CW) in semi-continuous activated sludge reactors was studied. The acclimation process and microbial growth on BPA, CW and BPA + CW were analyzed. In addition, the effect of increasing CW concentration on the BPA degradation by acclim...

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Autores principales: Ferro Orozco, Ana Micaela, Contreras, Edgardo Martín, Zaritzky, Noemí Elisabet
Formato: Articulo
Lenguaje:Inglés
Publicado: 2015
Materias:
Ciencias Exactas
Bisphenol A
Activated sludge
Acclimation
Growth yield
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/131457
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-131457
record_format dspace
spelling I19-R120-10915-1314572024-08-30T17:28:37Z http://sedici.unlp.edu.ar/handle/10915/131457 Simultaneous biodegradation of bisphenol A and a biogenic substrate in semi-continuous activated sludge reactors Ferro Orozco, Ana Micaela Contreras, Edgardo Martín Zaritzky, Noemí Elisabet 2015-06 2022-02-22T15:14:57Z en Ciencias Exactas Bisphenol A Activated sludge Acclimation Growth yield In this work, the simultaneous degradation of BPA and cheese whey (CW) in semi-continuous activated sludge reactors was studied. The acclimation process and microbial growth on BPA, CW and BPA + CW were analyzed. In addition, the effect of increasing CW concentration on the BPA degradation by acclimated activated sludge was also studied. In order to reduce the factors involved in the analysis of the simultaneous degradation of BPA and CW, the effect of bisphenol A (BPA) on activated sludge not previously exposed to BPA (native activated sludge) was studied. Results demonstrate that BPA concentrations lower than 40 mg l⁻¹ had a negligible effect on the growth of native activated sludge. In the semi-continuous reactors, the presence of CW increased the acclimation time to 40 mg l⁻¹ of BPA. Once the capability of degrading BPA was acquired, the removal of BPA was not affected by the presence of CW. Increasing the CW concentration did not affect the removal of BPA by the acclimated activated sludge. Additionally, the CW consumption was not modified by the presence of BPA. Kinetic and stoichiometric coefficients reported in the present work can be useful in developing mathematical models to describe the simultaneous aerobic biodegradation of a biogenic substrate, such as CW, and BPA by activated sludge. Facultad de Ciencias Exactas Centro de Investigación y Desarrollo en Criotecnología de Alimentos Facultad de Ingeniería Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 183-195
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Bisphenol A
Activated sludge
Acclimation
Growth yield
spellingShingle Ciencias Exactas
Bisphenol A
Activated sludge
Acclimation
Growth yield
Ferro Orozco, Ana Micaela
Contreras, Edgardo Martín
Zaritzky, Noemí Elisabet
Simultaneous biodegradation of bisphenol A and a biogenic substrate in semi-continuous activated sludge reactors
topic_facet Ciencias Exactas
Bisphenol A
Activated sludge
Acclimation
Growth yield
description In this work, the simultaneous degradation of BPA and cheese whey (CW) in semi-continuous activated sludge reactors was studied. The acclimation process and microbial growth on BPA, CW and BPA + CW were analyzed. In addition, the effect of increasing CW concentration on the BPA degradation by acclimated activated sludge was also studied. In order to reduce the factors involved in the analysis of the simultaneous degradation of BPA and CW, the effect of bisphenol A (BPA) on activated sludge not previously exposed to BPA (native activated sludge) was studied. Results demonstrate that BPA concentrations lower than 40 mg l⁻¹ had a negligible effect on the growth of native activated sludge. In the semi-continuous reactors, the presence of CW increased the acclimation time to 40 mg l⁻¹ of BPA. Once the capability of degrading BPA was acquired, the removal of BPA was not affected by the presence of CW. Increasing the CW concentration did not affect the removal of BPA by the acclimated activated sludge. Additionally, the CW consumption was not modified by the presence of BPA. Kinetic and stoichiometric coefficients reported in the present work can be useful in developing mathematical models to describe the simultaneous aerobic biodegradation of a biogenic substrate, such as CW, and BPA by activated sludge.
format Articulo
Articulo
author Ferro Orozco, Ana Micaela
Contreras, Edgardo Martín
Zaritzky, Noemí Elisabet
author_facet Ferro Orozco, Ana Micaela
Contreras, Edgardo Martín
Zaritzky, Noemí Elisabet
author_sort Ferro Orozco, Ana Micaela
title Simultaneous biodegradation of bisphenol A and a biogenic substrate in semi-continuous activated sludge reactors
title_short Simultaneous biodegradation of bisphenol A and a biogenic substrate in semi-continuous activated sludge reactors
title_full Simultaneous biodegradation of bisphenol A and a biogenic substrate in semi-continuous activated sludge reactors
title_fullStr Simultaneous biodegradation of bisphenol A and a biogenic substrate in semi-continuous activated sludge reactors
title_full_unstemmed Simultaneous biodegradation of bisphenol A and a biogenic substrate in semi-continuous activated sludge reactors
title_sort simultaneous biodegradation of bisphenol a and a biogenic substrate in semi-continuous activated sludge reactors
publishDate 2015
url http://sedici.unlp.edu.ar/handle/10915/131457
work_keys_str_mv AT ferroorozcoanamicaela simultaneousbiodegradationofbisphenolaandabiogenicsubstrateinsemicontinuousactivatedsludgereactors
AT contrerasedgardomartin simultaneousbiodegradationofbisphenolaandabiogenicsubstrateinsemicontinuousactivatedsludgereactors
AT zaritzkynoemielisabet simultaneousbiodegradationofbisphenolaandabiogenicsubstrateinsemicontinuousactivatedsludgereactors
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