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电废水中的双价铜和的连续减少,使用注射了新型Enterococcus物种的生物电化学系统

Charles Amanze¹, Richmond Anaman², Dennis Ssekimpi³

¹School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China.

Bioprocess and biosystems engineering

|July 28, 2025

概括

在生物电化学系统 (BES) 中的新型Enterococcus物种有效地从电废水中去除重金属,同时产生电力. 混合培养实现了铜和的高去除率,证明了可持续的废水处理潜力.

科学领域:

环境微生物学环境微生物学
电化学电化学电化学
生物技术是生物技术.

背景情况:

电废水含有有毒的重金属,如铜和.
传统的治疗方法往往是低效和昂贵的.
生物电化学系统 (BES) 为废水处理和资源回收提供了一个有希望的替代方案.

研究的目的:

研究新型Enterococcus物种 (AMZ3,AMZ8,AMZ5) 作为BES中的生物催化剂,用于同时发电和重金属回收的潜力.
评估单个菌株与混合培养在电废水处理中的性能.
描述开发系统的电化学和清除效率.

主要方法:

从微生物燃料电池生物膜中分离和识别新型Enterococcus物种.
在单腔和双腔生物电化学系统 (BES) 中评估微生物性能.
使用循环电压测量和电化学阻抗光谱的电化学分析.
使用SEM-EDX,XRD和XPS进行重金属去除和回收分析.

主要成果:

菌种的混合培养明显优于单个菌株,达到439.78mW/m2的峰值功率密度和5.31A/m2的电流密度.
记录了高的去除效率:化学氧气需求为94.6%,铜为99.99%,为99.96%.
协同的微生物相互作用,增强的生物膜形成和增加的细胞外聚合物物质含量有助于提高性能.
在阴极上以Cu0和Ni0的形式回收金属,这表明有效的生物电化学减少.

结论:

混合的Enterococcus培养物是BES中有效的生物催化剂,用于同时发电和从电废水中去除重金属.
开发的BES证明了处理复杂工业废水的可持续和高效方法.
这项研究为微生物电化学技术在环境修复中的可扩展应用铺平了道路.

关键词:

肠球菌种类的肠球菌.生物电化学系统生物电化学系统发电是发电的过程.电废水处理废水电处理重金属的回收重金属的回收重金属的回收重金属的回收重金属的回收.

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