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A laboratory study of the biodegradation of MTBE solubilised in water by a microbial consortium entrapped in a water-in-oil-in-water double emulsion

Paper ID Volume ID Publish Year Pages File Format Full-Text
35314 45086 2008 5 PDF Available
Title
A laboratory study of the biodegradation of MTBE solubilised in water by a microbial consortium entrapped in a water-in-oil-in-water double emulsion
Abstract

A stable water-in-oil-in-water (W1/O/W2) double emulsion containing in its inner aqueous phase a microbial consortium (60 mgprotein Ldouble emulsion−1) known to degrade methyl tert-butyl ether (MTBE) was prepared. The primary emulsion (W1/O) had a volume disperse phase (ϕ1) of 0.3 and was stabilized with 8% Span 80. The double emulsion had a volume disperse phase (ϕ2) of 0.3 and was stabilized with 0.2% polyacrylic acid (PAA). A maximum degradation rate of 12.4 mgMTBE gprotein−1 h−1 was achieved in a microcosm that contained an initial concentration of 146 mgMTBE Ldouble emulsion−1. This degradation rate was significantly lower (P < 0.05) than that exhibited by the free cells (48.7 mgMTBE gprotein−1 h−1), probably because the encapsulated cells metabolized an ingredient of the double emulsion as carbon source besides MTBE. Nevertheless, our results show that this biodegradation technique has great applicability potential.

Keywords
MTBE; Degradation; W1/O/W2 double emulsion; Microbial consortium; Microcosm; Facilitated transport
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A laboratory study of the biodegradation of MTBE solubilised in water by a microbial consortium entrapped in a water-in-oil-in-water double emulsion
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 43, Issue 11, November 2008, Pages 1239–1243
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