环境细菌作为偶氮染料降解系统潜在方法的应用

IF 3.1 Q2 ENVIRONMENTAL SCIENCES
G. Paba, R. B. Ávila, D. B. Baldiris
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引用次数: 13

摘要

背景和目的:本研究的目的是介绍偶氮染料的主要特性和用于从水中去除它们的不同处理方法。特别强调与生物处理有关的好处,主要是与细菌的使用有关的好处,这与它在染料降解过程中比其他微生物具有竞争优势有关。方法:首先通过与研究小组的研讨会确定要讨论的主题。文献综述是根据几个纳入/排除标准进行的:出版年份,因为选择仅限于2010年至2020年之间发表的研究,调查的重点,这必须与修复被偶氮染料污染的生态系统的不同技术的效率有关,最后,研究还讨论了环境细菌在染料降解过程中的使用。结果:细菌对偶氮染料的降解效率为63 ~ 100%,其中效率最高的是:海洋杆菌、鞘杆菌、粪肠球菌、casseliflavus。据报道,同时去除染料金属复合物效率更高的细菌是环状芽孢杆菌和朱尼不动杆菌。结论:传统的处理偶氮染料废水的策略仅限于物理和化学处理,这具有较高的能源和经济成本。由于这些原因,目前的挑战集中在利用能够将染料转化为毒性较低的化合物的环境细菌上。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Application of environmental bacteria as potential methods of azo dye degradation systems
BACKGROUND AND OBJECTIVES: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. METHODS: 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. FINDING: The efficiency of bacteria to degrade azo dyes ranges from 63-100%, the most efficient being: Marinobacter sp, Sphingobacterium sp, Enterococcus faecalis, Enterococcus casseliflavus. The bacteria that, reportedly, have greater efficiency for simultaneously removing the dye-metal complex are Bacillus circulans and Acinetobacter junii. CONCLUSION: 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.
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来源期刊
CiteScore
7.90
自引率
2.90%
发文量
11
审稿时长
8 weeks
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