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Model for oxygen transfer in rotating biological contactor

DSpace at IIT Bombay

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Field Value
 
Title Model for oxygen transfer in rotating biological contactor
 
Creator KUBSAD, VIJAY
CHAUDHARI, SANJEEV
GUPTA, SK
 
Subject calibration
wastewater treatment
integration
rotating disks
 
Description Rotating biological contactor is being widely used for wastewater treatment but there is an apparent lack of knowledge about the rate at which oxygen transfer occurs, in physical and biological system. In this study the transfer of oxygen from air to water by a rotating disc air–liquid contactor in physical system is investigated. The oxygen transfer model suggested by Kim and Molof, Water Sci. Technol. 14 (1982) 569, was modified and the developed model is termed as modified Kim and Molof model. The model was calibrated by using available data in literature and validated by experiments conducted in this study. The effect of significant physical parameters was integrated into a single term and is termed as volume renewal number. The modified Kim and Molof model was compared with the other available models. The coefficient of determination (R2) for the modified Kim and Molof model obtained is 0.95 which is much higher than in the other available models. Thereby the model is expected to estimate oxygen transfer more accurately. Further, a simplified linear model between KLa and the volume renewal number is proposed. Both modified Kim and Molof and linear model estimate the overall oxygen transfer coefficient (KLa) accurately.
 
Publisher Elsevier
 
Date 2009-06-05T07:00:31Z
2011-12-08T07:46:39Z
2011-12-26T13:02:25Z
2011-12-27T05:48:40Z
2009-06-05T07:00:31Z
2011-12-08T07:46:39Z
2011-12-26T13:02:25Z
2011-12-27T05:48:40Z
2004
 
Type Article
 
Identifier Water Research 38(20), 4297-4304
0043-1354
10.1016/j.watres.2004.08.016
http://hdl.handle.net/10054/1436
http://dspace.library.iitb.ac.in/xmlui/handle/10054/1436
 
Language en