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Polyhydroxyalkanoate (PHB) as a slow-release electron donor for advanced in situ bioremediation of chlorinated solvent-contaminated aquifers

Paper ID Volume ID Publish Year Pages File Format Full-Text
33324 44969 2014 6 PDF Available
Title
Polyhydroxyalkanoate (PHB) as a slow-release electron donor for advanced in situ bioremediation of chlorinated solvent-contaminated aquifers
Abstract

During the last two decades permeable reactive barriers (PRBs) established as robust alternatives to traditional pump & treat approaches for groundwater remediation. Zero-valent iron (ZVI) is currently the most frequently employed reactive media, especially for treating plumes polluted by chlorinated hydrocarbons. However PRB-ZVI technology is affected by some problems such as the long-term performance decrease, loss of porosity and no applicability to some important compounds, such as 1,2-dichloroetane (1,2-DCA). In this study we wanted to investigate whether the coupling of ZVI with a long-lasting slow-release substrate (i.e. poly-hydroxybutyrate, PHB) could be a strategy to enhance the degradation performance of ZVI barriers towards chlorinated ethanes especially stimulating biological reductive dechlorination downgradient the PRB. Results here presented clearly demonstrate the feasibility of the proposed approach and the possibility that a biodegradable polymer, usually produced for different commercial sectors, could be advantageously used in the groundwater remediation market.

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Polyhydroxyalkanoate (PHB) as a slow-release electron donor for advanced in situ bioremediation of chlorinated solvent-contaminated aquifers
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Publisher
Database: Elsevier - ScienceDirect
Journal: New Biotechnology - Volume 31, Issue 4, 25 June 2014, Pages 377–382
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