Removal of Triphenylmethane Dyes by Bacterial Consortium
A new consortium of four bacterial isolates (Agrobacterium radiobacter; Bacillus spp.; Sphingomonas paucimobilis, and Aeromonas hydrophila)-(CM-4) was used to degrade and to decolorize triphenylmethane dyes. All bacteria were isolated from activated sludge extracted from a wastewater treatment stati...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1100/2012/512454 |
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| author | Jihane Cheriaa Monia Khaireddine Mahmoud Rouabhia Amina Bakhrouf |
| author_facet | Jihane Cheriaa Monia Khaireddine Mahmoud Rouabhia Amina Bakhrouf |
| author_sort | Jihane Cheriaa |
| collection | DOAJ |
| description | A new consortium of four bacterial isolates (Agrobacterium radiobacter; Bacillus spp.; Sphingomonas paucimobilis, and Aeromonas hydrophila)-(CM-4) was used to degrade and to decolorize triphenylmethane dyes. All bacteria were isolated from activated sludge extracted from a wastewater treatment station of a dyeing industry plant. Individual bacterial isolates exhibited a remarkable color-removal capability against crystal violet (50 mg/L) and malachite green (50 mg/L) dyes within 24 h. Interestingly, the microbial consortium CM-4 shows a high decolorizing percentage for crystal violet and malachite green, respectively, 91% and 99% within 2 h. The rate of chemical oxygen demand (COD) removal increases after 24 h, reaching 61.5% and 84.2% for crystal violet and malachite green, respectively. UV-Visible absorption spectra, FTIR analysis and the inspection of bacterial cells growth indicated that color removal by the CM-4 was due to biodegradation. Evaluation of mutagenicity by using Salmonella typhimurium test strains, TA98 and TA100 studies revealed that the degradation of crystal violet and malachite green by CM-4 did not lead to mutagenic products. Altogether, these results demonstrated the usefulness of the bacterial consortium in the treatment of the textile dyes. |
| format | Article |
| id | doaj-art-3f8d9c36774940d58b4d7989d6ece866 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-3f8d9c36774940d58b4d7989d6ece8662025-02-03T01:32:44ZengWileyThe Scientific World Journal1537-744X2012-01-01201210.1100/2012/512454512454Removal of Triphenylmethane Dyes by Bacterial ConsortiumJihane Cheriaa0Monia Khaireddine1Mahmoud Rouabhia2Amina Bakhrouf3Laboratory of Analysis, Treatment, Valorisation and Environmental Pollution and Products “LR01ES16”, Faculty of Pharmacy, University of Monastir, Monastir Avicenne Street, Monastir 5000, TunisiaLaboratory of Analysis, Treatment, Valorisation and Environmental Pollution and Products “LR01ES16”, Faculty of Pharmacy, University of Monastir, Monastir Avicenne Street, Monastir 5000, TunisiaGroupe de Recherche en Ecologie Buccale, Faculté de Médecine Dentaire, Université Laval 2420 rue de la Terrasse, QC, G1V 0A6, CanadaLaboratory of Analysis, Treatment, Valorisation and Environmental Pollution and Products “LR01ES16”, Faculty of Pharmacy, University of Monastir, Monastir Avicenne Street, Monastir 5000, TunisiaA new consortium of four bacterial isolates (Agrobacterium radiobacter; Bacillus spp.; Sphingomonas paucimobilis, and Aeromonas hydrophila)-(CM-4) was used to degrade and to decolorize triphenylmethane dyes. All bacteria were isolated from activated sludge extracted from a wastewater treatment station of a dyeing industry plant. Individual bacterial isolates exhibited a remarkable color-removal capability against crystal violet (50 mg/L) and malachite green (50 mg/L) dyes within 24 h. Interestingly, the microbial consortium CM-4 shows a high decolorizing percentage for crystal violet and malachite green, respectively, 91% and 99% within 2 h. The rate of chemical oxygen demand (COD) removal increases after 24 h, reaching 61.5% and 84.2% for crystal violet and malachite green, respectively. UV-Visible absorption spectra, FTIR analysis and the inspection of bacterial cells growth indicated that color removal by the CM-4 was due to biodegradation. Evaluation of mutagenicity by using Salmonella typhimurium test strains, TA98 and TA100 studies revealed that the degradation of crystal violet and malachite green by CM-4 did not lead to mutagenic products. Altogether, these results demonstrated the usefulness of the bacterial consortium in the treatment of the textile dyes.http://dx.doi.org/10.1100/2012/512454 |
| spellingShingle | Jihane Cheriaa Monia Khaireddine Mahmoud Rouabhia Amina Bakhrouf Removal of Triphenylmethane Dyes by Bacterial Consortium The Scientific World Journal |
| title | Removal of Triphenylmethane Dyes by Bacterial Consortium |
| title_full | Removal of Triphenylmethane Dyes by Bacterial Consortium |
| title_fullStr | Removal of Triphenylmethane Dyes by Bacterial Consortium |
| title_full_unstemmed | Removal of Triphenylmethane Dyes by Bacterial Consortium |
| title_short | Removal of Triphenylmethane Dyes by Bacterial Consortium |
| title_sort | removal of triphenylmethane dyes by bacterial consortium |
| url | http://dx.doi.org/10.1100/2012/512454 |
| work_keys_str_mv | AT jihanecheriaa removaloftriphenylmethanedyesbybacterialconsortium AT moniakhaireddine removaloftriphenylmethanedyesbybacterialconsortium AT mahmoudrouabhia removaloftriphenylmethanedyesbybacterialconsortium AT aminabakhrouf removaloftriphenylmethanedyesbybacterialconsortium |