细菌对不同形式的固稳定性的影响
Wen-Fa Tan1, Zhi-Wen Deng1, Jun-Wen Lv1
1Environmental Protection and Safety Engineering, University of South China, Hengyang, People's Republic of China.
Environmental technology
|July 4, 2024
概括
细菌和协同增强了 (VI) 的去除,将其固定到稳定的形式. 长期稳定性需要注意,特别是在矿区.
科学领域:
- 环境科学 环境科学
- 地质化学 地质化学
- 微生物学 微生物学
背景情况:
- (VI) 污染对环境构成风险.
- 酸沉显示出对修复的前景.
- 在稳定中的作用需要调查.
研究的目的:
- 为了研究细菌和对 (VI) 封存的影响.
- 为了评估固定的稳定性随着时间的推移.
- 了解水生系统中的固定机制.
主要方法:
- 在水生系统中添加酸盐和细菌处理.
- 用于相位识别的X射线衍射 (XRD).
- 用于表面分析的SEM-EDS和XPS.
- 顺序提取 (BCR) 用于移动性评估.
主要成果:
- 酸增强 (VI) 的去除率为99.84%.
- 观察到细菌和之间的协同效应,用于固定.
- 在样本表面上U (VI) 和U (IV) 的共存.
- 固定从可转移到稳定的阶段转移.
结论:
- 细菌和对有效的 (VI) 生物固定具有协同作用.
- 固定的长期稳定性需要进一步研究,特别是在矿环境中.
- 环境条件可能会影响固定的长期稳定性.
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