通过使用石墨烯和活性炭与Acidithiobacillus细菌改善电子废物中的Cu和Zn的生物溶解
Hamideh Badri1, Mahdokht Arshadi2, Fatemeh Pourhossein3
1Petroleum and Chemical Engineering Department, Chemical Engineering, Sharif University of Technology, Tehran, Iran.
The Science of the total environment
|February 11, 2026
概括
这项研究通过混合细菌培养和催化剂,从电子废物中提升铜和的回收. 在最佳条件下,在12天内实现了100%的金属回收.
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:
- 电子废物 (电子废物) 构成环境风险,并含有贵重金属.
- 电视印刷电路板 (TVPCB) 是电子垃圾的一个重要来源.
- 需要有效的方法从TVPCB中回收铜 (Cu) 和 (Zn) 等金属.
研究的目的:
- 为了研究从TVPCB中的Cu和Zn的生物溶解.
- 为了评估Acidithiobacillus ferrooxidans (A. ferrooxidans) 和Acidithiobacillus thiooxidans (A. thiooxidans) 的有效性,单独和作为混合培养.
- 评估石墨烯和粉状活性炭对金属回收的催化作用.
主要方法:
- 使用 A. ferrooxidans 和 A. thiooxidans 的生物化实验.
- 应用响应表面方法 (RSM) 与中央复合设计 (CCD) 进行优化.
- 研究石墨烯和活性炭作为促进金属回收的催化剂.
主要成果:
- 与单个菌株相比,混合细菌培养表明优越的Cu回收.
- 石墨烯和粉状活性炭显著增加了Cu回收率,约为20%.
- 最佳条件 (pH 2.0,1.5 g/L石墨烯,1.5 g/L活性炭) 导致在12天内100%同时恢复Cu和Zn.
结论:
- 混合细菌培养和催化剂 (石墨烯,活性炭) 的联合使用对从TVPCB中生物溶解Cu和Zn非常有效.
- 催化剂增强细菌活动,从而改善金属回收.
- 这种生物溶解方法为电子废物利用和金属资源回收提供了可持续的解决方案.
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