Biodegradation Modeling of Nitrophenolic Pollutant in a Slurry Bubble Reactor
Biodegradation kinetics of 4-nitrophenol (PNP) in aqueous solution by a gram negative soil bacterium, Ralstoniaeutropha was firstly studied in a small scale batch reactor. The degradation of PNP was evaluated at initial PNP concentrations ranging from 3 mg/L to 14 mg/L. The rate of PNP consumption b...
Main Authors: | , , |
---|---|
Format: | Article |
Language: | English |
Published: |
University of Tehran
2014-12-01
|
Series: | Journal of Chemical and Petroleum Engineering |
Subjects: | |
Online Access: | https://jchpe.ut.ac.ir/article_7562.html |
id |
doaj-891931aed4da4064b381ecf293d4d289 |
---|---|
record_format |
Article |
spelling |
doaj-891931aed4da4064b381ecf293d4d2892020-11-24T21:49:13ZengUniversity of TehranJournal of Chemical and Petroleum Engineering2423-673X2423-67212014-12-0148211712410.22059/JCHPE.2014.7562Biodegradation Modeling of Nitrophenolic Pollutant in a Slurry Bubble ReactorZeinab Salehi0Shohreh Fatemi1Farzaneh Vahabzadeh2School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, IranSchool of Chemical Engineering, College of Engineering, University of Tehran, Tehran, IranChemical Engineering Department, Amirkabir University of Technology, Tehran, IranBiodegradation kinetics of 4-nitrophenol (PNP) in aqueous solution by a gram negative soil bacterium, Ralstoniaeutropha was firstly studied in a small scale batch reactor. The degradation of PNP was evaluated at initial PNP concentrations ranging from 3 mg/L to 14 mg/L. The rate of PNP consumption by the bacterium culture was modeled using Monod and Contois kinetics in batch condition. PNP degradation by adapted R. eutropha was well fitted to the Monod equation for the pollutant with initial concentration of 3-8 mg/L, whereas for PNP with initial concentration of 14 mg/L the experimental data were better fitted to the Contois kinetic model. The process of degradation of PNP was scaled up in a slurry bubble reactor with 250 ml working volume in presence of 0.75 L/min air flow rate. The derived kinetic model was validated by comparison the outlet time dependent experimental data of PNP concentration with the model in the slurry bioreactor and the results showed good agreement between experiments and the model.https://jchpe.ut.ac.ir/article_7562.htmlbiodegradationp-nitrophenolRalstoniaeutrophaKinetic modelingSlurry bubble reactor |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zeinab Salehi Shohreh Fatemi Farzaneh Vahabzadeh |
spellingShingle |
Zeinab Salehi Shohreh Fatemi Farzaneh Vahabzadeh Biodegradation Modeling of Nitrophenolic Pollutant in a Slurry Bubble Reactor Journal of Chemical and Petroleum Engineering biodegradation p-nitrophenol Ralstoniaeutropha Kinetic modeling Slurry bubble reactor |
author_facet |
Zeinab Salehi Shohreh Fatemi Farzaneh Vahabzadeh |
author_sort |
Zeinab Salehi |
title |
Biodegradation Modeling of Nitrophenolic Pollutant in a Slurry Bubble Reactor |
title_short |
Biodegradation Modeling of Nitrophenolic Pollutant in a Slurry Bubble Reactor |
title_full |
Biodegradation Modeling of Nitrophenolic Pollutant in a Slurry Bubble Reactor |
title_fullStr |
Biodegradation Modeling of Nitrophenolic Pollutant in a Slurry Bubble Reactor |
title_full_unstemmed |
Biodegradation Modeling of Nitrophenolic Pollutant in a Slurry Bubble Reactor |
title_sort |
biodegradation modeling of nitrophenolic pollutant in a slurry bubble reactor |
publisher |
University of Tehran |
series |
Journal of Chemical and Petroleum Engineering |
issn |
2423-673X 2423-6721 |
publishDate |
2014-12-01 |
description |
Biodegradation kinetics of 4-nitrophenol (PNP) in aqueous solution by a gram negative soil bacterium, Ralstoniaeutropha was firstly studied in a small scale batch reactor. The degradation of PNP was evaluated at initial PNP concentrations ranging from 3 mg/L to 14 mg/L. The rate of PNP consumption by the bacterium culture was modeled using Monod and Contois kinetics in batch condition. PNP degradation by adapted R. eutropha was well fitted to the Monod equation for the pollutant with initial concentration of 3-8 mg/L, whereas for PNP with initial concentration of 14 mg/L the experimental data were better fitted to the Contois kinetic model. The process of degradation of PNP was scaled up in a slurry bubble reactor with 250 ml working volume in presence of 0.75 L/min air flow rate. The derived kinetic model was validated by comparison the outlet time dependent experimental data of PNP concentration with the model in the slurry bioreactor and the results showed good agreement between experiments and the model. |
topic |
biodegradation p-nitrophenol Ralstoniaeutropha Kinetic modeling Slurry bubble reactor |
url |
https://jchpe.ut.ac.ir/article_7562.html |
work_keys_str_mv |
AT zeinabsalehi biodegradationmodelingofnitrophenolicpollutantinaslurrybubblereactor AT shohrehfatemi biodegradationmodelingofnitrophenolicpollutantinaslurrybubblereactor AT farzanehvahabzadeh biodegradationmodelingofnitrophenolicpollutantinaslurrybubblereactor |
_version_ |
1725888741380194304 |