使用石墨电极作为电子捐赠体,以高效地通过微生物去除溶解的U ((VI) 以莱夫索尼亚sp为媒介
Wenfa Tan1, Han Wu2, Chuqin Huang2
1Environmental Protection and Safety Engineering, University of South China, Hengyang, 421001, China; Hengyang Key Laboratory of Soil Pollution Control and Remediation, University of South China, Hengyang, 421001, China.
Journal of environmental radioactivity
|February 12, 2024
概括
这项研究表明,使用石墨电极显著增强了本土细菌从废水中去除 (VI). 这种方法在不到一个小时内实现了90%以上的去除效率,为整治提供了更快,更有效的解决方案.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 电化学 电化学 电化学
背景情况:
- 细菌减少金属对矿废水处理有希望.
- 目前的方法效率低,处理时间长.
研究的目的:
- 用本土细菌研究电极对 (VI) 清除效率的影响.
- 为了优化处理参数,以提升的去除.
主要方法:
- 从矿废弃物堆中分离出来的土著细菌.
- 进行静态实验,测试电流强度,pH值,初始度,细菌剂量和接触时间的影响.
- 使用FTIR,SEM,EDS和XPS进行表面和化学分析.
主要成果:
- 石墨电极实现了超过90%的U(VI) 清除效率,将处理时间缩短到不到1小时.
- 最佳条件:10 mA电流,pH 5,10 mg/L U(VI) 和0.25 g/L的细菌 (Leifsonia sp. ) 的情况.
- U(VI) 主要通过化学吸收/减少进行固定,功能组和直流发挥关键作用.
结论:
- 石墨电极表现出有效的电化学特性和与Leifsonia sp.的协同作用能力.
- 这种方法为增强的去除和本土细菌的固定提供了一个新的策略.
- 这项研究为改善矿废水处理提供了一个有希望的途径.
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