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Bioslurry phase degradation of di-ethyl phthalate (DEP) contaminated soil in periodic discontinuous mode operation: Influence of bioaugmentation and substrate partition ☆

Paper ID Volume ID Publish Year Pages File Format Full-Text
36387 45131 2006 9 PDF Available
Title
Bioslurry phase degradation of di-ethyl phthalate (DEP) contaminated soil in periodic discontinuous mode operation: Influence of bioaugmentation and substrate partition ☆
Abstract

The degradation of DEP contaminated soil was studied in the soil slurry phase sequencing batch reactor (SS-SBR). Experiments were conducted for studying the degradation of DEP using four different reactors. Effect of bioaugmentation using ETP microflora on the degradation of DEP was also investigated and found an enhanced degradation. The reactors were operated with a total cycle period of 48 h, comprising one and half hours of fill 45 h of react and one and half hours of decant phases. The metabolites for the DEP degradation in slurry phase have been identified. During the operation of bioaugmented reactor, the substrate partition data showed higher desorption of DEP from soil phase to aqueous phase compared to other reactors studied. The degradation of DEP in the slurry phase confirmed to zero order kinetic equation in bioaugmented reactor. The half life period of DEP degradation in the soil phase of bioaugmented reactor was 19 days. Process performance during the investigation was monitored by determining dissolved oxygen (DO), pH, oxygen consumption rate (OCR) and substrate concentration by high performance liquid chromatography (HPLC).

Keywords
Di-ethyl phthalate (DEP); Soil slurry phase reactor; Sequencing batch reactor (SBR); Periodic discontinuous process; HPLC; Substrate partition
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Bioslurry phase degradation of di-ethyl phthalate (DEP) contaminated soil in periodic discontinuous mode operation: Influence of bioaugmentation and substrate partition ☆
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 41, Issue 3, March 2006, Pages 644–652
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