深海微生物驱动的V5+和Cd2+从化废水中去除:细菌查,性能和机制
Ruiyu Ma1, Yali Feng2, Haoran Li3
1School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing, 100083, China; State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
Environmental pollution (Barking, Essex : 1987)
|July 25, 2024
概括
深海微生物有效地从工业废水中去除和等重金属. 这些微生物利用生物还原,生物吸收和生物矿物化来有效控制污染.
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.
- 海洋生物技术 海洋生物技术
背景情况:
- 由于重金属污染,工业废水排放带来了重大环境风险.
- 现有的生物处理方法面临着微生物耐药性,适应性和活性方面的局限性.
- 深海的热水喷口是拥有独特的微生物,具有很高的重金属耐受性.
研究的目的:
- 为了隔离和描述深海微生物群落的重金属修复.
- 研究这些微生物去除和的机制.
- 为了优化条件,有效的重金属废水处理.
主要方法:
- 从深海的热水风口沉积物中分离微生物群落,使用震动瓶实验.
- 使用SEM-EDS,XRD,XPS和FT-IR.重金属去除机制 (生物还原,生物吸收,生物矿物化) 的分析.
- 优化处理参数,包括温度,pH值,盐度和基质度.
- 对,和化学氧气需求 (COD) 的去除效率的评估.
主要成果:
- 确定了一个由Burkholderia-Caballeronia-Paraburkholderia主导的微生物群落.
- 通过生物还原和生物矿物化实现了同时去除 (V(V) 到V(IV)) 和 (Cd(II)).
- 微生物细胞表面功能组积极参与重金属生物吸收.
- 最佳条件产生了高的去除效率:V5+的86.32%,Cd2+的59.13%,COD的61.63%.
结论:
- 深海微生物群落为处理重金属污染的工业废水提供了一个有希望的解决方案.
- 了解微生物耐药机制对于开发有效的生物修复策略至关重要.
- 这项研究为利用极端动物在工业废水处理中提供了基础.
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