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A review on biocatalytic decomposition of azo dyes and electrons recovery
KTH, School of Chemical Science and Engineering (CHE).
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Applied Electrochemistry.ORCID iD: 0000-0002-0452-0703
2017 (English)In: Journal of Molecular Liquids, ISSN 0167-7322, E-ISSN 1873-3166, Vol. 246, p. 275-281Article in journal (Refereed) Published
Abstract [en]

Discharge of waste water from textile industry during coloring processes contains high concentrations of biologically difficult-to-degrade dye chemicals along with antifouling agents. Azo dyes considered to be the largest class of synthetic dyes used in the textile industries and are present in significant amounts in its effluents. These are highly stable because of its complex aromatic structure and covalent azo bonds. Traditional physico-chemical methods are not considered sufficient because of their high cost, partial degradation and more sludge production. The use of biocatalysts for decolorization is a gaining momentum due to having redox-active molecules. Current review explored techniques for the decomposition of textile dyes, their merits, limitations and recommended the emerging microbial fuel cell technology followed by aerobic treatment for complete degradation of dye intermediate metabolites.

Place, publisher, year, edition, pages
Elsevier B.V. , 2017. Vol. 246, p. 275-281
Keyword [en]
Azo dye, Biocatalysis, Microbial fuel cell, Physicochemical methods, Textile industry, Agents, Azo dyes, Biocatalysts, Degradation, Dyes, Effluents, Fuel cells, Microbial fuel cells, Redox reactions, Textiles, Antifouling agents, Complex aromatic structures, Fuel cell technologies, Partial degradation, Redox active molecules, Sludge production
National Category
Water Treatment
Identifiers
URN: urn:nbn:se:kth:diva-218646DOI: 10.1016/j.molliq.2017.09.063ISI: 000415771100035Scopus ID: 2-s2.0-85029864322OAI: oai:DiVA.org:kth-218646DiVA, id: diva2:1161258
Note

QC 20171129

Available from: 2017-11-29 Created: 2017-11-29 Last updated: 2017-12-18Bibliographically approved

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Lindström, Rakel

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