微生物多样性,转化和毒性使用热-性微生物联盟的色剂生物降解
Samson Tizazu1, Getaneh Tesfaye1, Aijie Wang2
1Biotechnology Stream, Biology Department, Natural and Computational Sciences' College, Arba Minch University, Arba Minch 21, Ethiopia.
Heliyon
|June 14, 2023
概括
这项研究研究了反应性红色141和239染料的生物降解,使用无氧-有氧条件和热-性微生物联盟. 经过处理的废水被证明是农业用途的安全,对植物,鱼类和微生物的毒性降低.
科学领域:
- 环境微生物学环境微生物学
- 生物修复是一种生物修复.
- 污水处理 污水处理 污水处理
背景情况:
- 像Reactive Red 141和239这样的色剂对环境构成风险.
- 有效的脱色和排毒方法对于含有染料的废水至关重要.
- 微生物联盟为染料降解提供了一种可持续的方法.
研究的目的:
- 为了研究反应性红色141和239.的无氧-有氧生物降解.
- 分析与染料降解有关的微生物群落.
- 评估染料在处理前和处理后对各种生物的毒性.
主要方法:
- 使用一种耐和热性细菌联盟来进行染料脱色.
- 采用了厌氧-有氧处理系统.
- 对植物,鱼类和微生物进行了毒性评估.
- 进行了元基因组分析和HPLC/MS,FT-IR用于转化识别.
主要成果:
- 在7小时内实现了RR 141的>98%脱色和RR 239的>96%.
- 确定了主要的细菌类 (Bacteroidota,Proteobacteria,Chloroflexi) 和类 (Bacteroidia,Gammaproteobacteria,Anaerolineae) 的细菌.
- 建议将染料转化为氨基化合物.
- 经过处理的废水对农业生物体的毒性有所降低.
结论:
- 在厌氧-有氧条件下,热性微生物联盟有效地去色色素染料.
- 生物降解过程显著降低了染料毒性.
- 经过处理的废水对于农业应用,包括灌,是安全的.
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