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工业废水重金属的生物修复使用单独和联盟Enterobacter sppp

Mahmoud Saber Kelany¹, Mohamed AbdElAziz El-Sawy², Ahmed Rabie El-Gendy²

¹National Institute of Oceanography and Fisheries (NIOF), Cairo, Egypt. ms.aal@niof.sci.eg.

Environmental monitoring and assessment

|October 23, 2023

概括

三种细菌分离物,被确定为Enterobacter kobei,Enterobacter cloacae和Enterobacter hormaechei,显示出工业废水中各种重金属的显著抵抗力和去除能力. 肠杆菌cloacae在去除重金属方面表现出最高的效率,即使在较高度下也是如此.

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.
废水处理废水处理

背景情况:

重金属是工业废水中普遍存在的污染物,对环境和健康构成重大风险.
细菌分离物对重金属具有不同程度的耐药性,这使得它们成为生物修复的潜在候选者.
识别和描述耐金属细菌对于开发有效的废水处理策略至关重要.

研究的目的:

从工业废水中分离和识别具有对多种重金属高耐药性的细菌菌株.
评估选择的细菌分离物的重金属去除效率,无论是单独的还是联合的.
用这些细菌菌株来确定重金属去除的最佳条件.

主要方法:

从工业废水中分离和选细菌菌株以检测重金属的耐药性.
对有前途的分离物 (Enterobacter kobei,Enterobacter cloacae,Enterobacter hormaechei) 的生物化学和DNA同质鉴定.
确定各种重金属的最小抑制度 (MIC).
评估不同工业废水度 (100%,200%,300%) 的重金属清除效率.

主要成果:

三种细菌分离物,E. kobei,E. cloacae和E. hormaechei,对Zn+2,Fe+2,Pb+2,Co+2,Mn+2,Ni+2和Cd+2具有很高的抗性.
这三种菌株都在100%的废水度下显示了超过90%的测试重金属的去除.
E.cloacae在200% (高达Zn+2的70.75%),300% (大多数金属的45%以上) 的度中表现出最高的去除效率.

结论:

肠杆菌kobei,肠杆菌cloacae和肠杆菌hormaechei是重金属生物修复的有效剂.
杆菌cloacae在从工业废水中去除重金属方面表现出卓越的表现,特别是在高度下.
这些发现支持E.cloacae的应用,用于开发先进的废水处理技术,以打击重金属污染.

关键词:

生物修复是一种生物修复.肠道细菌 spp. 进入细菌 spp.这是一种重金属,重金属.工业废物工业废物工业废物苏伊士湾是苏伊士湾的一个.

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