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微生物从受污染的环境中去除重金属,使用耐金属本土菌株

Cristina Firincă^1,2, Lucian-Gabriel Zamfir¹, Mariana Constantin^1,3

¹Biotechnology and Bioanalysis Departments, National Institute of Research and Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independenței, 060021 Bucharest, Romania.

Journal of xenobiotics

|January 22, 2024

概括

微生物生物修复有效地从污染的土壤中去除重金属. 马里斯弗拉维菌在 (Pb) 清除方面表现出色,而Trichoderma longibrachiatum在 (Cr) 和 (Zn) 补救方面具有强大作用.

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.
沉重金属污染沉重金属污染

背景情况:

土壤重金属污染对农业,环境和人类健康构成全球风险.
来自受污染地点的微生物菌株对 (Cr), (Pb) 和 (Zn) 等重金属有耐受性.
马里斯弗拉维杆菌和长杆菌表现出对这些金属的显著耐受性.

研究的目的:

评估Bacillus marisflavi和Trichoderma longibrachiatum对Cr,Pb和Zn的生物修复潜力.
量化这些微生物菌株对特定重金属的去除效率.
探索这些微生物在环境清洁战略中的应用.

主要方法:

从工业污染土壤中分离和选微生物菌株.
生物修复实验,以评估重金属的去除.
使用电化学丝印电极 (SPE) 量化重金属.
形态结构分析 (SEM/EDX) 和功能组识别 (FTIR) 来确认金属吸收机制.

主要成果:

特里科德尔玛长除了87%的Cr和67%的Zn.
马里斯弗拉维杆菌去除了86%的Pb,表现优于T. longibrachiatum (48%).
SEM/EDX证实了微生物细胞表面上的金属离子存在.
FTIR分析表明通过基,基和氨基基团进行生物吸收.

结论:

特里科德尔玛长是Cr和Zn生物修复的有希望的候选者.
马里斯弗拉维杆菌显示了Pb生物修复应用的潜力.
这些微生物菌株为重金属污染控制提供了可行的生物解决方案.

关键词:

重金属重金属的使用.微生物是一种微生物.纳米材料的使用方法土壤生物修复土壤生物修复

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