Application of environmental bacteria as potential methods of azo dye degradation systems
<strong>BACKGROUND AND OBJECTIVES:</strong>The objective of this study isto present a description of the main characteristics of azo dyes and the different treatment methods used to remove them from water. There is a special emphasis given to the benefits associated with biological treat...
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2021-01-01
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| Series: | Global Journal of Environmental Science and Management |
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| author | G. Manjarrez Paba R. Baldiris Ávila D. Baena Baldiris |
| author_facet | G. Manjarrez Paba R. Baldiris Ávila D. Baena Baldiris |
| author_sort | G. Manjarrez Paba |
| collection | DOAJ |
| description | <strong>BACKGROUND AND OBJECTIVES:</strong>The objective of this study isto present a description of the main characteristics of azo dyes and the different treatment methods used to remove them from water. There is a special emphasis given to the benefits associated with biological treatment, predominantly those related to the use of bacteria, which has to do with its competitive advantages over other microorganisms in the dye degradation processes.<br /> <strong>METHODS:</strong> The topic to be addressed was first defined through workshops with the research group. The literature review was carried out following several inclusion/exclusion criteria: the year of publication, as the selection was limited to studies published between 2010 and 2020, the focus of the investigation, which had to be related to the efficiency of different techniques for the remediation of ecosystems contaminated with azo dyes and, lastly, that the studies also discussed the use of environmental bacteria in dye degradation processes.<br /> <strong>FINDING</strong>: The efficiency of bacteria to degrade azo dyes ranges from 63-100%, the most efficient being: <em>Marinobacter</em> sp, <em>Sphingobacterium</em> sp, <em>Enterococcus faecalis</em>, <em>Enterococcus casseliflavus</em>. The bacteria that, reportedly, have greater efficiency for simultaneously removing the dye-metal complex are <em>Bacillus circulans</em> and <em>Acinetobacter junii</em>.<br /> <strong>CONCLUSION:</strong> Traditional strategies for the treatment of effluents contaminated with azo dyes are limited to physical and chemical processes that have a high energy and economic cost. For these reasons, current challenges are focused on the use of environmental bacteria capable of transforming dyes into less toxic compounds. |
| format | Article |
| id | doaj-art-1cf79d3b216a4adfb541fb687ff3c1d4 |
| institution | Kabale University |
| issn | 2383-3572 2383-3866 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | GJESM Publisher |
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| series | Global Journal of Environmental Science and Management |
| spelling | doaj-art-1cf79d3b216a4adfb541fb687ff3c1d42025-02-02T17:33:27ZengGJESM PublisherGlobal Journal of Environmental Science and Management2383-35722383-38662021-01-017113115410.22034/gjesm.2021.01.1043276Application of environmental bacteria as potential methods of azo dye degradation systemsG. Manjarrez Paba0R. Baldiris Ávila1D. Baena Baldiris2Clinical and Environmental Microbiology Group. University of Cartagena, Faculty of Natural and Exact Sciences, Cartagena, ColombiaClinical and Environmental Microbiology Group. University of Cartagena, Faculty of Natural and Exact Sciences, Cartagena, ColombiaClinical and Environmental Microbiology Group. University of Cartagena, Faculty of Natural and Exact Sciences, Cartagena, Colombia<strong>BACKGROUND AND OBJECTIVES:</strong>The objective of this study isto present a description of the main characteristics of azo dyes and the different treatment methods used to remove them from water. There is a special emphasis given to the benefits associated with biological treatment, predominantly those related to the use of bacteria, which has to do with its competitive advantages over other microorganisms in the dye degradation processes.<br /> <strong>METHODS:</strong> The topic to be addressed was first defined through workshops with the research group. The literature review was carried out following several inclusion/exclusion criteria: the year of publication, as the selection was limited to studies published between 2010 and 2020, the focus of the investigation, which had to be related to the efficiency of different techniques for the remediation of ecosystems contaminated with azo dyes and, lastly, that the studies also discussed the use of environmental bacteria in dye degradation processes.<br /> <strong>FINDING</strong>: The efficiency of bacteria to degrade azo dyes ranges from 63-100%, the most efficient being: <em>Marinobacter</em> sp, <em>Sphingobacterium</em> sp, <em>Enterococcus faecalis</em>, <em>Enterococcus casseliflavus</em>. The bacteria that, reportedly, have greater efficiency for simultaneously removing the dye-metal complex are <em>Bacillus circulans</em> and <em>Acinetobacter junii</em>.<br /> <strong>CONCLUSION:</strong> Traditional strategies for the treatment of effluents contaminated with azo dyes are limited to physical and chemical processes that have a high energy and economic cost. For these reasons, current challenges are focused on the use of environmental bacteria capable of transforming dyes into less toxic compounds.https://www.gjesm.net/article_43276_032761576f995a74e71e70fff2728219.pdfacinetobacterazo dyeseffluentsenterococcusmarine bacteriawater treatment |
| spellingShingle | G. Manjarrez Paba R. Baldiris Ávila D. Baena Baldiris Application of environmental bacteria as potential methods of azo dye degradation systems Global Journal of Environmental Science and Management acinetobacter azo dyes effluents enterococcus marine bacteria water treatment |
| title | Application of environmental bacteria as potential methods of azo dye degradation systems |
| title_full | Application of environmental bacteria as potential methods of azo dye degradation systems |
| title_fullStr | Application of environmental bacteria as potential methods of azo dye degradation systems |
| title_full_unstemmed | Application of environmental bacteria as potential methods of azo dye degradation systems |
| title_short | Application of environmental bacteria as potential methods of azo dye degradation systems |
| title_sort | application of environmental bacteria as potential methods of azo dye degradation systems |
| topic | acinetobacter azo dyes effluents enterococcus marine bacteria water treatment |
| url | https://www.gjesm.net/article_43276_032761576f995a74e71e70fff2728219.pdf |
| work_keys_str_mv | AT gmanjarrezpaba applicationofenvironmentalbacteriaaspotentialmethodsofazodyedegradationsystems AT rbaldirisavila applicationofenvironmentalbacteriaaspotentialmethodsofazodyedegradationsystems AT dbaenabaldiris applicationofenvironmentalbacteriaaspotentialmethodsofazodyedegradationsystems |