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Design and optimization of an enzymatic membrane reactor for tetracycline degradation

Paper ID Volume ID Publish Year Pages File Format Full-Text
54079 46995 2014 7 PDF Available
Title
Design and optimization of an enzymatic membrane reactor for tetracycline degradation
Abstract

•Laccase grafting onto ceramic supports for active membrane elaboration.•Impact of different parameters on laccase activity.•Tetracycline degradation by free and immobilized laccases in osmosed water.•Stability of active membranes for tetracycline degradation in an enzymatic membrane reactor.

The tetracycline, antibiotic considered as a recalcitrant pollutant, was successfully depleted from model aqueous solutions by immobilized laccase from Trametes versicolor in an enzymatic membrane reactor. The results obtained show that tetracycline is depleted from water solutions at room temperature and without adding any extra chemicals. The degradation of tetracycline in aqueous solutions at 20 mg L−1 during 24 h, with equivalent amounts of free or immobilized biocatalyst, allowed reaching a tetracycline degradation yield of 56% with an enzymatic membrane whereas it was only of 30% with free laccase. This result highlights the good reactivity and stability of the immobilized enzyme for the degradation of tetracycline. Moreover, the enzymatic membrane reactor was able to reach a constant degradation rate of 0.34 mg of tetracycline per hour during 10 days.

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Keywords
Enzymatic membrane reactor; Active membrane; Laccase; Tetracycline; Wastewater treatment; Micropollutant degradation
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Design and optimization of an enzymatic membrane reactor for tetracycline degradation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 236, Part A, 1 November 2014, Pages 146–152
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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