从bastnaesite与分离的功能性细菌中生物溶解稀土元素:一个环保的替代策略
Ni He1, Chi Zhang1, Xiaoyu Meng1
1School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Key Lab of Biohydrometallurgy of Ministry of Education, Changsha, Hunan 410083, China.
Bioresource technology
|May 16, 2025
概括
这项研究优化了利用农业废物产生的乳酸生物溶解来提取稀土元素 (REE). 一种特定的细菌在低剂量的生物溶解剂中实现了高REE回收,提供了可持续的解决方案.
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:
- 稀土元素 (REEs) 对现代技术至关重要.
- 传统的REE提取方法对环境造成了担忧.
- 生物化为REE回收提供了一个可持续的替代方案.
研究的目的:
- 评估模拟的液剂用于从bastnaesite中提取REE.
- 为了分离和利用一个功能性的细菌用于REE生物溶解.
- 调查农业废弃物作为生产生物化剂的碳来源的使用情况.
主要方法:
- 模拟液剂的系统评估,确定乳酸是最佳的.
- 隔离了一种与Lactobacillus rhamnosus密切相关的细菌,用于生物化.
- 农业废物的预处理和随后的微生物发酵以生产生物化剂.
主要成果:
- 乳酸被确定为最有效的模拟液剂.
- 一种功能性细菌,非常类似于Lactobacillus rhamnosus,被分离出来.
- 使用0.20mol/L生物化剂实现了53%的REE化效率,相当于1.0mol/L纯乳酸.
结论:
- 隔离的细菌有效地将纤维素生物质转化为有效的生物脱剂,用于REE提取.
- 这种生物溶解策略为REE回收提供了一个有希望的低剂量方法.
- 这项研究有助于可持续的REE开采和农业废物利用.
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