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Kinetic modeling of carbon and nutrients removal in an integrated rotating biological contactor-activated sludge system

In this study, kinetics of biological carbon, nitrogen, and phosphorous removal from a synthetic wastewater in an integrated rotating biological contactor-activated sludge system was investigated. The experimental data obtained from varying four significant independent factors viz., hydraulic re...

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Main Authors:	Akhbari, A., Zinatizadeh, A.A.L., Mohammadi, P., Mansouri, Y., Irandoust, M., Isa, M.H.
Format:	Citation Index Journal
Published:	2012
Subjects:	TD Environmental technology. Sanitary engineering
Online Access:	http://eprints.utp.edu.my/10766/1/Kinetic%20modeling%20of%20carbon%20and%20nutrients%20removal%20rate%20in%20an%20integrated%20rotating%20biological%20contactor%20activated%20sludge%20system.pdf http://eprints.utp.edu.my/10766/
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spelling	my.utp.eprints.107662013-12-16T23:48:31Z Kinetic modeling of carbon and nutrients removal in an integrated rotating biological contactor-activated sludge system Akhbari, A. Zinatizadeh, A.A.L. Mohammadi, P. Mansouri, Y. Irandoust, M. Isa, M.H. TD Environmental technology. Sanitary engineering In this study, kinetics of biological carbon, nitrogen, and phosphorous removal from a synthetic wastewater in an integrated rotating biological contactor-activated sludge system was investigated. The experimental data obtained from varying four significant independent factors viz., hydraulic retention time, chemical oxygen demand for nitrogen to phosphorus ratio, internal recirculation from aerobic to anoxic zone and disks rotating speed were used for the process kinetic modeling. In order to obtain the bioprocess kinetic coefficients, Monod, first order and Stover–Kincannon models were employed. As a result, Monod and Stover–Kincannon models were found to be the appropriate models to describe the bioprocess in the rotating biological contactor-activated sludge system as the determination coefficient for the first-order model obtained less than 0.79. According to the Monod model, growth yield, microbial decay rate, maximum specific biomass growth rate, and half-velocity constant coefficients were found to be 0.712 g VSS/g COD, 0.008/d, 5.54/d and 55 mg COD/L, respectively. From Stover–Kincannon model, the maximum total substrate removal rate constant and half-velocity constant were determined as 15.2, 10.98, 12.05 g/L d and 14.78, 7.11, 6.97 mg/L for chemical oxygen demand, nitrogen and phosphorus removal, respectively. The kinetic parameters determined in this study can be used to improve the design and operation of the biological contactor-activated sludge system in full scale. 2012-04 Citation Index Journal PeerReviewed application/pdf http://eprints.utp.edu.my/10766/1/Kinetic%20modeling%20of%20carbon%20and%20nutrients%20removal%20rate%20in%20an%20integrated%20rotating%20biological%20contactor%20activated%20sludge%20system.pdf Akhbari, A. and Zinatizadeh, A.A.L. and Mohammadi, P. and Mansouri, Y. and Irandoust, M. and Isa, M.H. (2012) Kinetic modeling of carbon and nutrients removal in an integrated rotating biological contactor-activated sludge system. [Citation Index Journal] http://eprints.utp.edu.my/10766/
institution	Universiti Teknologi Petronas
building	UTP Resource Centre
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Petronas
content_source	UTP Institutional Repository
url_provider	http://eprints.utp.edu.my/
topic	TD Environmental technology. Sanitary engineering
spellingShingle	TD Environmental technology. Sanitary engineering Akhbari, A. Zinatizadeh, A.A.L. Mohammadi, P. Mansouri, Y. Irandoust, M. Isa, M.H. Kinetic modeling of carbon and nutrients removal in an integrated rotating biological contactor-activated sludge system
description	In this study, kinetics of biological carbon, nitrogen, and phosphorous removal from a synthetic wastewater in an integrated rotating biological contactor-activated sludge system was investigated. The experimental data obtained from varying four significant independent factors viz., hydraulic retention time, chemical oxygen demand for nitrogen to phosphorus ratio, internal recirculation from aerobic to anoxic zone and disks rotating speed were used for the process kinetic modeling. In order to obtain the bioprocess kinetic coefficients, Monod, first order and Stover–Kincannon models were employed. As a result, Monod and Stover–Kincannon models were found to be the appropriate models to describe the bioprocess in the rotating biological contactor-activated sludge system as the determination coefficient for the first-order model obtained less than 0.79. According to the Monod model, growth yield, microbial decay rate, maximum specific biomass growth rate, and half-velocity constant coefficients were found to be 0.712 g VSS/g COD, 0.008/d, 5.54/d and 55 mg COD/L, respectively. From Stover–Kincannon model, the maximum total substrate removal rate constant and half-velocity constant were determined as 15.2, 10.98, 12.05 g/L d and 14.78, 7.11, 6.97 mg/L for chemical oxygen demand, nitrogen and phosphorus removal, respectively. The kinetic parameters determined in this study can be used to improve the design and operation of the biological contactor-activated sludge system in full scale.
format	Citation Index Journal
author	Akhbari, A. Zinatizadeh, A.A.L. Mohammadi, P. Mansouri, Y. Irandoust, M. Isa, M.H.
author_facet	Akhbari, A. Zinatizadeh, A.A.L. Mohammadi, P. Mansouri, Y. Irandoust, M. Isa, M.H.
author_sort	Akhbari, A.
title	Kinetic modeling of carbon and nutrients removal in an integrated rotating biological contactor-activated sludge system
title_short	Kinetic modeling of carbon and nutrients removal in an integrated rotating biological contactor-activated sludge system
title_full	Kinetic modeling of carbon and nutrients removal in an integrated rotating biological contactor-activated sludge system
title_fullStr	Kinetic modeling of carbon and nutrients removal in an integrated rotating biological contactor-activated sludge system
title_full_unstemmed	Kinetic modeling of carbon and nutrients removal in an integrated rotating biological contactor-activated sludge system
title_sort	kinetic modeling of carbon and nutrients removal in an integrated rotating biological contactor-activated sludge system
publishDate	2012
url	http://eprints.utp.edu.my/10766/1/Kinetic%20modeling%20of%20carbon%20and%20nutrients%20removal%20rate%20in%20an%20integrated%20rotating%20biological%20contactor%20activated%20sludge%20system.pdf http://eprints.utp.edu.my/10766/
_version_	1738655894331195392
score	13.211869

Kinetic modeling of carbon and nutrients removal in an integrated rotating biological contactor-activated sludge system

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