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Biodegradation and detoxification potential of rotating biological contactor (RBC) with Irpex lacteus for remediation of dye-containing wastewater
K. Malachova, Z. Rybkova, H. Sezimova, J. Cerven, C. Novotny,
Language English Country England, Great Britain
Document type Journal Article, Research Support, Non-U.S. Gov't
- MeSH
- Aliivibrio fischeri drug effects MeSH
- Araceae drug effects MeSH
- Color MeSH
- Coloring Agents metabolism MeSH
- Biodegradation, Environmental MeSH
- Bioreactors MeSH
- Water Pollutants, Chemical metabolism MeSH
- Magnoliopsida drug effects MeSH
- Methylene Blue metabolism MeSH
- Waste Disposal, Fluid instrumentation methods MeSH
- Wastewater * toxicity MeSH
- Polyporales metabolism MeSH
- Toxicity Tests MeSH
- Textile Industry MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
Use of fungal organisms in rotating biological contactors (RBC) for bioremediation of liquid industrial wastes has so far been limited in spite of their significant biodegradation potential. The purpose was to investigate the power of RBC using Irpex lacteus for decolorization and detoxification of industrial dyes and dyeing textile liquors. Recalcitrant dye Methylene Blue (150 mg L(-1)) was decolorized within 70 days, its mutagenicity removed, and the biological toxicity decreased more than 10-fold. I. lacteus biofilm in the RBC completely decolorized within 26 and 47 days dyeing liquors containing disperse or reactive dyes adjusted to pH4.5 and 5-fold diluted with the growth medium, respectively. Their respective biological toxicity values were reduced 10- to 10(4)-fold in dependence of the test used. A battery of toxicity tests comprising Vibrio fisheri, Lemna minor and Sinapis alba was efficient to monitor the toxicity of textile dyes and wastewaters. Strong decolorization and detoxification power of RBC using I. lacteus biofilms was demonstrated.
References provided by Crossref.org
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