Modeling of Mass Transfer Coefficient in Rotating Biological Contactor with Perforated Discs (RPBC)

Abstract In order to make an improvement associated with rotating biological contactor (RBC), a new design of biofilm reactor called as Rotating perforated disc biological contactor (RPBC) was developed in which the rotating discs are perforated. The transfer of oxygen from air to wastewater wa...

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Autor principal:	Alaa Kareem Mohammed
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2015
Materias:	Rotating biological contactor, Mass transfer coefficient, Wastewater treatment. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/8d9613401adf427da194e4436a43a440
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spelling	oai:doaj.org-article:8d9613401adf427da194e4436a43a4402021-12-02T04:42:06ZModeling of Mass Transfer Coefficient in Rotating Biological Contactor with Perforated Discs (RPBC)1818-11712312-0789https://doaj.org/article/8d9613401adf427da194e4436a43a4402015-12-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/271https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 Abstract In order to make an improvement associated with rotating biological contactor (RBC), a new design of biofilm reactor called as Rotating perforated disc biological contactor (RPBC) was developed in which the rotating discs are perforated. The transfer of oxygen from air to wastewater was investigated. Mass-transfer coefficient (KLa) in the liquid phase was determined by measuring the rate transfer of oxygen. A laboratory scale of (RPBC) consisted of a semicircular trough was used with a working capacity of 40 liters capacity of liquid. Synthetic wastewater was used as a liquid phase, while air was used as a gas phase. The effects of many parameters on the liquid phase mass transfer coefficient (KLa) were investigated. These parameters are; the disc rotational speed (N), the pore diameter (d) and clearance between the discs(C). It was found that the value of KLa was increased as the rotation speed (N) increased, and as the diameter of the pores in the disc (d) increased. While the values of (KLa) was decreased continuously with increasing the clearance(C). Suitable correlation was developed for estimating mass transfer coefficient (KLa) in this type of bioreactor. Keywords: Rotating biological contactor, Mass transfer coefficient, Wastewater treatment. Alaa Kareem MohammedAl-Khwarizmi College of Engineering – University of BaghdadarticleRotating biological contactor, Mass transfer coefficient, Wastewater treatment.Chemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 11, Iss 4 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	Rotating biological contactor, Mass transfer coefficient, Wastewater treatment. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Rotating biological contactor, Mass transfer coefficient, Wastewater treatment. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Alaa Kareem Mohammed Modeling of Mass Transfer Coefficient in Rotating Biological Contactor with Perforated Discs (RPBC)
description	Abstract In order to make an improvement associated with rotating biological contactor (RBC), a new design of biofilm reactor called as Rotating perforated disc biological contactor (RPBC) was developed in which the rotating discs are perforated. The transfer of oxygen from air to wastewater was investigated. Mass-transfer coefficient (KLa) in the liquid phase was determined by measuring the rate transfer of oxygen. A laboratory scale of (RPBC) consisted of a semicircular trough was used with a working capacity of 40 liters capacity of liquid. Synthetic wastewater was used as a liquid phase, while air was used as a gas phase. The effects of many parameters on the liquid phase mass transfer coefficient (KLa) were investigated. These parameters are; the disc rotational speed (N), the pore diameter (d) and clearance between the discs(C). It was found that the value of KLa was increased as the rotation speed (N) increased, and as the diameter of the pores in the disc (d) increased. While the values of (KLa) was decreased continuously with increasing the clearance(C). Suitable correlation was developed for estimating mass transfer coefficient (KLa) in this type of bioreactor. Keywords: Rotating biological contactor, Mass transfer coefficient, Wastewater treatment.
format	article
author	Alaa Kareem Mohammed
author_facet	Alaa Kareem Mohammed
author_sort	Alaa Kareem Mohammed
title	Modeling of Mass Transfer Coefficient in Rotating Biological Contactor with Perforated Discs (RPBC)
title_short	Modeling of Mass Transfer Coefficient in Rotating Biological Contactor with Perforated Discs (RPBC)
title_full	Modeling of Mass Transfer Coefficient in Rotating Biological Contactor with Perforated Discs (RPBC)
title_fullStr	Modeling of Mass Transfer Coefficient in Rotating Biological Contactor with Perforated Discs (RPBC)
title_full_unstemmed	Modeling of Mass Transfer Coefficient in Rotating Biological Contactor with Perforated Discs (RPBC)
title_sort	modeling of mass transfer coefficient in rotating biological contactor with perforated discs (rpbc)
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2015
url	https://doaj.org/article/8d9613401adf427da194e4436a43a440
work_keys_str_mv	AT alaakareemmohammed modelingofmasstransfercoefficientinrotatingbiologicalcontactorwithperforateddiscsrpbc
_version_	1718401134833434624

Modeling of Mass Transfer Coefficient in Rotating Biological Contactor with Perforated Discs (RPBC)

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