fulltext.study @t Gmail

Isolation and characterization of phenol degrading bacteria immobilized onto cyclodextrin-hydrogel particles within a draft tube spouted bed bioreactor

Paper ID Volume ID Publish Year Pages File Format Full-Text
3617 178 2012 7 PDF Available
Title
Isolation and characterization of phenol degrading bacteria immobilized onto cyclodextrin-hydrogel particles within a draft tube spouted bed bioreactor
Abstract

A draft-tube spouted bed bioreactor was developed to investigate the microbial degradation of aqueous phenol using a cyclodextrin-based support material. Bacteria from activated sludge were acclimated to phenol in a continuous stirred tank bioreactor, and then immobilized onto the hydrogel particles within the spouted bed bioreactor. Microorganisms obtained under different operating conditions in both bioreactors were isolated and characterized. Batch phenol degradation assays performed on isolated dominant strains showed that Acinetobacter baumannii was the most resistant to phenol. Microbial population distribution in bioreactors was not only affected by phenol concentration, but also by oxygen availability, the system configuration and the presence of intermediates formed during phenol metabolization. A maximum elimination capacity of 2.79 kg-phenol/m3 d was achieved in the spouted bed bioreactor, with Comamonas acidovorans being the dominant strain during high degradation periods.

► A draft tube spouted bed bioreactor with an hydrogel support for phenol removal. ► Comamonas acidovorans was dominant during high performance of spouted bed reactor. ► Maximum elimination capacity of 2.79 kg-phenol/m3 d in the spouted bed reactor. ► Phenol, system design, oxygen and intermediates as bacterial selection factors.

Keywords
Phenol degradation; Airlift Bioreactors; Bubble Columns; Aerobic Processes; Immobilized Cells; Hydrogel Support
First Page Preview
Isolation and characterization of phenol degrading bacteria immobilized onto cyclodextrin-hydrogel particles within a draft tube spouted bed bioreactor
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
Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 64, 15 May 2012, Pages 69–75
Authors
, , ,
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