从使用过的离子电池中出金属的性能差异的比较,使用不同的代谢功能细菌
Qiaowei Gan1, Xiaojian Liao2, Zihang Liu3
1Guangdong Education Department Key Laboratory of Resources Comprehensive Utilization and Cleaner Production, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China; Foshan Gaoming Yanghe Huisheng Environmental Protection Co., Ltd, Foshan, 528513, China.
Journal of environmental management
|November 6, 2025
概括
硫氧化细菌,特别是Acidithiobacillus thiooxidans,可以有效地从已耗尽的离子电池 (LIB) 中回收金属. 这种绿色生物冲洗方法通过产生关键的减少剂,在一天内实现了100%的金属回收.
科学领域:
- 微生物生物技术 微生物生物技术
- 水电金术是指用水电金术进行金术.
- 环境科学环境科学
背景情况:
- 来自使用过的离子电池 (LIB) 的金属的生物化为传统方法提供了一种可持续的替代方案.
- 微生物的选择对于优化生物溶解效率至关重要.
研究的目的:
- 系统地比较三种细菌菌株的生物溶解效率,用于耗尽的LIBs.
- 阐明有效的金属回收背后的机制.
主要方法:
- 培养和应用Acidithiobacillus ferrooxidans,Leptospirillum ferrooxidans和Acidithiobacillus thiooxidans用于生物化.
- 分析金属离子度和表征细胞外聚合物质 (EPS).
主要成果:
- 酸性菌氧化剂表现出卓越的性能,在24小时内实现了100%的Co,Mn,Ni和Li的浸出.
- 甲基氧化剂系统产生了高度的Fe2+和H+,促进了金属的减少和溶解.
- 通过A. thiooxidans增强的EPS生产减轻了金属毒性.
结论:
- 硫氧化细菌,特别是A. thiooxidans,对于从已耗尽的LIB中生物溶解金属非常有效.
- Fe2+/H+氧化还原系统和EPS有助于A. thiooxidans的高效率.
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