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Polychlorinated biphenyl degradation in aqueous wastes by employing continuous fixed-bed bioreactors

Paper ID Volume ID Publish Year Pages File Format Full-Text
36627 45138 2006 6 PDF Available
Title
Polychlorinated biphenyl degradation in aqueous wastes by employing continuous fixed-bed bioreactors
Abstract

Two laboratory scale biofilm bioreactors of identical configuration were set up and tested for the continuous treatment of waters artificially contaminated with simple or complex mixtures of low chlorinated biphenyls (PCBs) and chlorobenzoic acids (CBAs). Frosted glass beads and polyurethane foam cubes were employed as immobilization supports. A three-membered aerobic bacterial co-culture, that was previously shown to have a high degradation and dechlorination activity towards PCBs in fixed bed batch bioreactors, was used to inoculate both biofilm reactors. The two bioreactors developed, operating in a continuous mode, were both capable of degrading and stoichiometrically dechlorinating the PCBs and CBAs present in the influent. The PCB degradation and dechlorination efficiency of the reactors did not decrease by increasing the organic load or by changing the influent composition, thus indicating a good stability and versatility of the developed process.

Keywords
Polychlorobiphenyls; Immobilized cells; Bioreactors; Continuous process; Biodegradation; Wastewater treatment
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Polychlorinated biphenyl degradation in aqueous wastes by employing continuous fixed-bed bioreactors
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 41, Issue 4, April 2006, Pages 935–940
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