稀土从基石中提取Aspergillus niger 培养
Jiangang Zhang1, Xinyue Zhang2, Xiangdong Su1
1Key Laboratory of Light Metal Materials Processing Technology of Guizhou Province, Guizhou Institute of Technology, Guiyang 550025, China.
Molecules (Basel, Switzerland)
|March 28, 2024
概括
这项研究表明,A. niger真菌过物有效地从中提取稀土元素 (REEs). 这种生物洗方法比传统的酸性提取更有效,更环保.
科学领域:
- 生物技术是生物技术.
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
背景情况:
- 石 (PG) 是肥料生产的废弃物残留物,通常含有有价值的稀土元素 (REEs).
- 有效利用PG的REEs提高了资源价值,并解决了废物管理的挑战.
- 目前的REE开采方法可能对环境有害.
研究的目的:
- 调查Aspergillus niger (A. niger) 菌种过物的有效性,以从PG中提取REEs.
- 为了比较使用A. niger过剂的直接和间接接触洗方法.
- 评估这种生物洗方法的环保性和工业潜力.
主要方法:
- 使用A. niger真菌培养过剂进行了直接和间接接触水实验.
- 优化漏条件包括30°C,每分钟150转的速度,以及2:1的固体-液体比.
- 诱导合等离子体质谱法 (ICP-MS) 用于量化REE提取率.
- 对A. niger的形态分析是在出水之前和之后进行的.
主要成果:
- 使用A. niger过物的直接水实现了74%的REE提取率,主要是 (Y), (La), (Ce) 和 (Nd).
- 与模拟的有机酸溶液相比,A. niger过剂的REE提取效率提高了63.3%.
- 尼格尔的形态变化表明其在REE提取中的代谢参与.
- 使用A. niger过物的生物洗方法比无机酸洗显示出更高的效率和环境效益.
结论:
- 阿斯伯吉勒斯尼日尔真菌过剂是一种高效和环保的药物,用于从石中提取可再生能源.
- 生物洗过程,特别是直接接触,比传统的酸洗方法具有显著的优势.
- 这种方法在REE回收和石价值化中具有相当大的工业规模应用潜力.
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