Interdependence between the aerobic degradation of BPA and readily biodegradable substrates by activated sludge in semi-continuous reactors

The objective of the present work was to analyze the interrelationship between the aerobic degradation of BPA and readily biodegradable substrates by activated sludge (AS) in semi-continuous reactors (SCRs). AS were obtained from three SCRs fed with glucose, acetate or peptone. AS from these reactor...

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Detalles Bibliográficos
Autores principales: Ferro Orozco, Ana Micaela, Contreras, Edgardo Martín, Zaritzky, Noemí Elisabet
Formato: Articulo
Lenguaje:Inglés
Publicado: 2018
Materias:
Ciencias Exactas
Ingeniería
Bisphenol A
Activated sludge
Biogenic substrate
Acclimation
Degradation
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/131887
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-131887
record_format dspace
spelling I19-R120-10915-1318872024-08-30T17:22:17Z http://sedici.unlp.edu.ar/handle/10915/131887 Interdependence between the aerobic degradation of BPA and readily biodegradable substrates by activated sludge in semi-continuous reactors Ferro Orozco, Ana Micaela Contreras, Edgardo Martín Zaritzky, Noemí Elisabet 2018-12 2022-03-03T15:28:30Z en Ciencias Exactas Ingeniería Bisphenol A Activated sludge Biogenic substrate Acclimation Degradation The objective of the present work was to analyze the interrelationship between the aerobic degradation of BPA and readily biodegradable substrates by activated sludge (AS) in semi-continuous reactors (SCRs). AS were obtained from three SCRs fed with glucose, acetate or peptone. AS from these reactors were used as inocula for three SCRs that were fed with each biogenic substrate, and for three SCRs that were fed with the biogenic substrate and BPA. In all cases, dissolved organic carbon (DOC), BPA, total suspended solids (TSS) and respirometric measurements were performed. Although BPA could be removed in the presence of all the tested substrates, AS grown on acetate exhibited the longest acclimation to BPA. Reactors fed with peptone attained the lowest TSS concentration; however, these AS had the highest specific BPA degradation rate. Specific DOC removal rates and respirometric measurements demonstrated that the presence of BPA had a negligible effect on the removal of the tested substrates. A mathematical model was developed to represent the evolution of TSS and DOC in the SCRs as a function of the operation cycle. Results suggest that the main effect of BPA on AS was to increase the generation of microbial soluble products. This work helps to understand the relationship between the biodegradation of BPA and readily biodegradable substrates. 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 579-592
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Ingeniería
Bisphenol A
Activated sludge
Biogenic substrate
Acclimation
Degradation
spellingShingle Ciencias Exactas
Ingeniería
Bisphenol A
Activated sludge
Biogenic substrate
Acclimation
Degradation
Ferro Orozco, Ana Micaela
Contreras, Edgardo Martín
Zaritzky, Noemí Elisabet
Interdependence between the aerobic degradation of BPA and readily biodegradable substrates by activated sludge in semi-continuous reactors
topic_facet Ciencias Exactas
Ingeniería
Bisphenol A
Activated sludge
Biogenic substrate
Acclimation
Degradation
description The objective of the present work was to analyze the interrelationship between the aerobic degradation of BPA and readily biodegradable substrates by activated sludge (AS) in semi-continuous reactors (SCRs). AS were obtained from three SCRs fed with glucose, acetate or peptone. AS from these reactors were used as inocula for three SCRs that were fed with each biogenic substrate, and for three SCRs that were fed with the biogenic substrate and BPA. In all cases, dissolved organic carbon (DOC), BPA, total suspended solids (TSS) and respirometric measurements were performed. Although BPA could be removed in the presence of all the tested substrates, AS grown on acetate exhibited the longest acclimation to BPA. Reactors fed with peptone attained the lowest TSS concentration; however, these AS had the highest specific BPA degradation rate. Specific DOC removal rates and respirometric measurements demonstrated that the presence of BPA had a negligible effect on the removal of the tested substrates. A mathematical model was developed to represent the evolution of TSS and DOC in the SCRs as a function of the operation cycle. Results suggest that the main effect of BPA on AS was to increase the generation of microbial soluble products. This work helps to understand the relationship between the biodegradation of BPA and readily biodegradable substrates.
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 Interdependence between the aerobic degradation of BPA and readily biodegradable substrates by activated sludge in semi-continuous reactors
title_short Interdependence between the aerobic degradation of BPA and readily biodegradable substrates by activated sludge in semi-continuous reactors
title_full Interdependence between the aerobic degradation of BPA and readily biodegradable substrates by activated sludge in semi-continuous reactors
title_fullStr Interdependence between the aerobic degradation of BPA and readily biodegradable substrates by activated sludge in semi-continuous reactors
title_full_unstemmed Interdependence between the aerobic degradation of BPA and readily biodegradable substrates by activated sludge in semi-continuous reactors
title_sort interdependence between the aerobic degradation of bpa and readily biodegradable substrates by activated sludge in semi-continuous reactors
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/131887
work_keys_str_mv AT ferroorozcoanamicaela interdependencebetweentheaerobicdegradationofbpaandreadilybiodegradablesubstratesbyactivatedsludgeinsemicontinuousreactors
AT contrerasedgardomartin interdependencebetweentheaerobicdegradationofbpaandreadilybiodegradablesubstratesbyactivatedsludgeinsemicontinuousreactors
AT zaritzkynoemielisabet interdependencebetweentheaerobicdegradationofbpaandreadilybiodegradablesubstratesbyactivatedsludgeinsemicontinuousreactors
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