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Redox mediator evaluation in the azo dye biodegradation
Linnaeus University, Faculty of Technology, Department of Built Environment and Energy Technology. Univ. Estadual Paulista, Brazil.
Linnaeus University, Faculty of Technology, Department of Built Environment and Energy Technology. (Bioresource technology)ORCID iD: 0000-0001-8179-1446
Linnaeus University, Faculty of Technology, Department of Built Environment and Energy Technology.ORCID iD: 0000-0003-0841-7065
Univ. Estadual Paulista, Brazil.
2015 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Azo dye degradation occurs by means of the oxidation–reduction reactions which have the azo dye acting as final electron acceptor. Some carbon sources can act as electron donors because the products of their metabolism act as redox mediators. In order to enhance the dye biodegradation process, the present study aims to evaluate the decolorization of an artificial wastewater, containing the azo dye Direct Red 75 (DR75), led by a microbial consortium from rice husks, testing the effect in the process of glucose and yeast extract as carbon sources. Samples with and without 0.1 M Sodium phosphate buffer were also analysed. The decolorization was measured by means UV-VIS spectrophotometry. The percentage of decolorization of the samples over the time indicates that the sample with yeast extract, rinse water of rice husks and without buffer presented the best decolorization rate, about 80%. Therefore, the results presented in this study may also suggest that yeast extract is a better carbon source for dye biodegradation than glucose.

Place, publisher, year, edition, pages
Boca Raton, USA: BrownWalker Press, 2015. , 4 p.
Keyword [en]
Textile dye, azoreductase, biodegradation, Azo dye, direct red 75, waste water treatment
National Category
Construction Management
Research subject
Environmental Science, Environmental technology; Technology (byts ev till Engineering), Sustainable Built Environment; Technology (byts ev till Engineering), Environmental Biotechnology; Natural Science, Environmental Science; Chemistry, Biotechnology; Ecology, Microbiology
Identifiers
URN: urn:nbn:se:lnu:diva-51791OAI: oai:DiVA.org:lnu-51791DiVA: diva2:916146
Conference
BioMicroWorld 2015
Available from: 2016-04-01 Created: 2016-03-31 Last updated: 2017-01-13Bibliographically approved

Open Access in DiVA

No full text

Other links

http://www.biomicroworld2015.org/

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf