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dc.date.accessioned 2022-08-31T14:45:07Z
dc.date.available 2022-08-31T14:45:07Z
dc.date.issued 2017-07-20
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/141356
dc.description.abstract The aim of this study was to analyze the mechanisms, stoichiometry, and stability of 4-chlorophenol (4CP) biodegradation kinetics by phenol-acclimated activated sludge using open respirometry. While the removal of 4CP was higher than 98%, the removal of chemical oxygen demand (COD) ranged between 69 and 79% due to the accumulation of an intermediate metabolite. The value obtained from respirometric profiles for the stoichiometric ratio of O2 to 4CP (YO2/4CP) was 1.95 ± 0.04 mol of oxygen consumed per mol of 4CP removed. This YO2/4CP value reflected the action of the oxygenases responsible for the first steps of the aerobic oxidation of 4CP. The 4CP degradation activity decreased noticeably when successive pulses of 4CP were added to the respirometer. A mathematical model was developed to represent the aerobic biodegradation of 4CP. The fitted model adequately predicted the oxygen consumption rate, total phenols, and soluble COD concentrations as a function of time. The results presented could help to predict the dynamic of biodegradation of chlorophenols in a biological wastewater treatment system. en
dc.format.extent 21272-21285 es
dc.language en es
dc.subject Acclimated activated sludge es
dc.subject 4-Chlorophenol es
dc.subject Respirometry es
dc.subject Biodegradation es
dc.subject Oxidation coefficient es
dc.subject Mathematical model es
dc.subject Kinetics es
dc.title Monitoring and modeling 4-chlorophenol biodegradation kinetics by phenol-acclimated activated sludge by using open respirometry en
dc.type Articulo es
sedici.identifier.other doi:10.1007/s11356-017-9735-5 es
sedici.identifier.other pmid:28726229 es
sedici.identifier.issn 1614-7499 es
sedici.identifier.issn 0944-1344 es
sedici.creator.person Lobo, Cintia Cecilia es
sedici.creator.person Bértola, Nora Cristina es
sedici.creator.person Contreras, Edgardo Martín es
sedici.creator.person Zaritzky, Noemí Elisabet es
sedici.subject.materias Ciencias Exactas es
sedici.description.fulltext true es
mods.originInfo.place Centro de Investigación y Desarrollo en Criotecnología de Alimentos es
mods.originInfo.place Facultad de Ingeniería es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution 4.0 International (CC BY 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Environmental Science and Pollution Research International es
sedici.relation.journalVolumeAndIssue vol. 25, no. 22 es


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Creative Commons Attribution 4.0 International (CC BY 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution 4.0 International (CC BY 4.0)