电活性微生物联盟的Bacillus,Lysinibacillus和Lactococcus用于增强的废水处理和生物发电
Aliya Temirbekova1,2, Zhanar Tekebayeva1, Timoth Mkilima3
1Republican Collection of Microorganisms, Astana 010000, Kazakhstan.
Biology
|January 28, 2026
概括
一个微生物燃料电池 (MFC) 联盟与单个细菌菌株相比,显著提高了发电和废水处理. 这凸显了微生物联盟在高效的生物电化学应用中的潜力.
科学领域:
- 生物电化学工程 生物电化学工程
- 环境微生物学 环境微生物学
- 废水处理技术 废水处理技术
背景情况:
- 微生物燃料电池 (MFC) 为能源发电和废水整治提供了双重解决方案.
- 微生物社区的代谢能力和相互作用对MFC的表现产生了关键的影响.
- 禽畜屠宰场的废水为MFC处理提供了一个具有挑战性的基质.
研究的目的:
- 为了比较单个细菌菌株的电化学活性和化学氧需求 (COD) 清除效率,与在MFC中开发的联盟相比.
- 评估使用家禽屠宰场废水的MFCs的长期绩效.
- 确定最佳的微生物社区结构,以提高MFC的性能.
主要方法:
- 三种细菌菌株 (Lysinibacillus sphericus A1,Bacillus cereus A2,Lactococcus lactis A4) 和一个联盟在双室MFC中进行了30天的测试.
- 通过测量输出功率,电压和COD清除效率来评估性能.
- 外部电阻从1000 Ω变化到50 Ω,以确定最佳的电压-电流特性.
主要成果:
- 该联盟实现了最高的功率输出 (170mW/m2) 和COD去除 (84.4%),显著超过单个菌株.
- 财团证明了在900mA/m2和245mV的最佳电压-电流性能.
- 个别菌株的功率输出较低,其中L. lactis A4的功率最低 (52 mA/m2).
结论:
- 与单个菌株相比,微生物联盟显著提高了MFC在发电和废水处理方面的性能.
- 选择具有不同代谢功能的互补细菌菌株对于优化MFC生物催化剂至关重要.
- 利用微生物联盟的MFC技术显示出对可持续废水管理和生物能源生产的巨大希望.
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