同时微生物电化学降解甲基和生物发电使用培养作为微生物燃料电池中的阳极注射剂
Tahseena Naaz1, Kalpana Sharma1, Arpita Roy2
1Department of Life Sciences, School of Basic Science and Research, Sharda University, Greater Noida, 201306, India.
概括
这项研究隔离了大肠杆菌 (大肠杆菌) 以有效降解甲基色,达到98%的效率. 在微生物燃料电池中与Pseudomonas aeruginosa共同培养,同时产生电力和处理废水.
科学领域:
- 环境微生物学 环境微生物学
- 生物修复是一种生物修复.
- 废水处理 废水处理
背景情况:
- 甲基色是一种色染料,是织业废水中普遍存在的污染物.
- 有效的生物修复策略对于消除持久性有机污染物至关重要.
研究的目的:
- 为了研究生物修复细菌在降解甲基色中的效率.
- 使用微生物燃料电池 (MFC) 探索同时生产电力和甲基色降解.
主要方法:
- 使用16SrRNA测序和MALDI-TOFMS的方法降解细菌 (大肠杆菌) 的分离和表征.
- 在MFC中与Pseudomonas aeruginosa共同培养大肠杆菌,用于同时降解和发电.
- 分析电化学性能和优化诸如pH值,染料度和化时间等参数.
主要成果:
- 大肠杆菌体现出高甲基色降解效率 (98%在pH值7.0下48小时后).
- 共同培养在250 mg/L甲基色下达到6.5 W/m3的最大功率密度.
- 用Fe2O3纳米颗粒进行阳极改造,使得发电量增加到11.2W/m3.
结论:
- 大肠杆菌是甲基色生物修复的有力细菌.
- 与细菌共同培养相结合的MFC技术为同时处理废水和回收能源提供了一个有前途的方法.
- Fe2O3纳米粒子修饰显著提高了MFC的性能.
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