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Dynamic transport and reaction model for azo dye removal in a UAFB reactor

Paper ID Volume ID Publish Year Pages File Format Full-Text
35206 45081 2010 9 PDF Available
Title
Dynamic transport and reaction model for azo dye removal in a UAFB reactor
Abstract

An Upflow Anaerobic Fixed Bed (UAFB) reactor packed with activated carbon was used to remove the azo dye Reactive red 272. The biomass grown on the activated carbon surface was composed of an adapted consortium of microorganisms. Residence time distribution test indicated that the reactor was a plug flow behavior. A dynamic mathematical model is presented for dye flux along the reactor and within the bioparticles composed of two regions: activated carbon core and biofilm. The model considers that the reaction is performed in the biofilm and in the liquid phase and includes dye transport by dispersion and diffusion. The concentration profile within the bioparticles changes with reactor height and time as the equilibrium is achieved. Changes in dye concentrations affect the concentration profile in the reactor and reduce the removal efficiency. The effectiveness factor depends on the reactor height and on the dye concentration at the inlet.

Keywords
UAFB; Bioreactor; Azo dye; Activated carbon; Residence time distribution; Dynamic model
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Dynamic transport and reaction model for azo dye removal in a UAFB reactor
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 45, Issue 1, January 2010, Pages 30–38
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us