从使用过的离子电池中回收有价值金属,使用微生物剂进行生物化:一项审查
Basanta Kumar Biswal1, Rajasekhar Balasubramanian1
1Department of Civil and Environmental Engineering, National University of Singapore, Singapore, Singapore.
Frontiers in microbiology
|June 16, 2023
概括
使用细菌和真菌等微生物进行生物洗的废旧离子电池 (LIB) 的回收提供了一种可持续的方法来回收有价值的 (Co) 和 (Li). 这种环保的方法利用微生物代谢物来溶解金属,为循环经济铺平道路.
科学领域:
- 环境科学 环境科学
- 生物技术是生物技术.
- 材料科学 材料科学 材料科学
背景情况:
- 使用过的离子电池 (LIB) 由于增加废物产生,造成了环境挑战.
- LIBs包含有价值的金属,如 (Co) 和 (Li),需求不断增加,供应有限.
- 可持续的回收利用方法对于节约资源和减轻污染至关重要.
研究的目的:
- 批判性地审查微生物生物训练的最新进展,以从消耗的LIB中回收Co和Li.
- 分析不同微生物剂的性能,包括细菌和真菌.
- 确定影响生物磨效率和未来研究方向的关键因素.
主要方法:
- 专注于对花费LIB的生物学习过程进行全面的文献综述.
- 检查了特定微生物剂的作用,如 * 酸菌铁氧化物*, * 酸菌硫氧化物* 和 * 黑色菌*.
- 研究生化机制 (酸解,氧化解,复合解) 和影响因素 (生物和非生物).
主要成果:
- 细菌和真菌生物溶解均有效地溶解了耗尽的LIBs中的金属,的溶解率高于.
- 驱动细菌漏的关键代谢物包括硫酸,而真菌产生酸,葡萄糖酸和酸.
- 生物溶解效率受到微生物剂,pH值,纸密度,溶解氧和温度的影响.
结论:
- 生物训练提出了一种具有成本效益和对环境无害的战略,用于从消耗的LIB中回收Co和Li.
- 了解生物化动力学,通常由缩小核心模型描述,对于流程优化至关重要.
- 需要进一步的研究来应对运营挑战,并扩大生物教学的工业应用,支持循环经济.
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