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电化学生物过器提高了挥发性有机化合物的减排性能

Marvin Yeung¹, Guangchun Wang¹, Bairen Yang²

¹Environmental Simulation and Pollution Control State Key Joint Laboratory, School of Environment, Tsinghua University, Beijing, People's Republic of China.

Environmental technology

|July 11, 2024

概括

将电流应用于电化学生物过器 (EBF) 显著增加了挥发性有机化合物 (VOC) 的去除. 这种方法还可以减少生物质的增长,防止生物过器堵塞,提高整体系统效率.

科学领域:

环境工程环境工程
生物技术是生物技术.
电化学电化学电化学

背景情况:

挥发性有机化合物 (VOC) 构成环境和健康风险.
传统的生物过器可能会受到生物质积累和堵塞的影响.
电化学方法为增强生物处理提供了潜力.

研究的目的:

研究电流对电化学生物过器 (EBF) 中挥发性有机化合物的去除的影响.
评估当前刺激对生物质生长和微生物群落结构的影响.
探索增强VOC降解和减少生物污染背后的机制.

主要方法:

电化学生物过器 (EBF) 的开发和运行.
在VOC处理过程中应用受控电流 (最佳50mA).
分析了去除效率,生物质增长率,微生物群体组成 (16S rRNA测序) 和液氧化物种的分析.

主要成果:

电化学刺激提高了15%的托卢烯去除效率,并减少了46%的生物质增长.
总体VOC去除效率增加了11-49%,生物质增长在测试化合物 (n-hexane, styrene,二甲,diisobutylene) 中减少了0-64%.
目前的应用转移了微生物群落向阳性细菌 (Firmicutes,Actinobacteria) 转移,并减少了占主导地位的蛋白质细菌属,同时增加了氧化物种 (H2O2,自由,超氧化物) 在液中.

结论:

电化学生物过是一种提高VOC去除的有效策略.
当前刺激成功地减轻了生物质积累和生物膜堵塞.
这种方法为提高生物过系统的性能和寿命提供了一个有希望的途径.

关键词:

电化学生物过器的使用生物质的增长生物质的增长微生物社区社区微生物活动的微生物活动.挥发性有机化合物挥发性有机化合物

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