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Decolorization of 1-amino-4-bromoanthraquinone-2-sulfonic acid in bioaugmented membrane bioreactor

Paper ID Volume ID Publish Year Pages File Format Full-Text
35477 45092 2009 5 PDF Available
Title
Decolorization of 1-amino-4-bromoanthraquinone-2-sulfonic acid in bioaugmented membrane bioreactor
Abstract

Decolorization of 1-amino-4-bromoanthraquinone-2-sulfonic acid (ABAS) in a Sphingomonas xenophaga-augmented membrane bioreactor was investigated. The results showed that sequencing bioaugmented membrane bioreactor (SMBR) could run stably for 60 days. During the process, over 99% ABAS (570 mg/L) was decolorized and 60% COD was removed. Moreover, the yellow intermediate produced in continuous operation mode was not detected in SMBR. It was probably a dimer resulting from the autoxidation of 2-amino-3-hydroxy-5-bromobenzenesulfonic acid. Ribosomal intergenic sequence analysis (RISA) of the sludge in SMBR suggested that bioaugmentation resulted in large decrease or increase of certain population and Strain QYY can persist in SMBR. The biomass of membrane surface in SMBR could be further divided into a cake layer and a dense layer. The former is mainly composed of coccus, bacillus and filamentous bacteria, which is different from suspended sludge flocs with predominant bacillus.

Keywords
1-Amino-4-bromoanthraquinone-2-sulfonic acid; Decolorization; Bioaugmentation; Membrane bioreactor; Sphingomonas xenophaga; Ribosomal intergenic sequence analysis
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Decolorization of 1-amino-4-bromoanthraquinone-2-sulfonic acid in bioaugmented membrane bioreactor
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 44, Issue 8, August 2009, Pages 812–816
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
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Full-text PDF Download
Online Support
Any Questions? feel free to contact us