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通过优化三明治结构来增强电子回收农业废弃物玉米在微生物电化学系统中填充阳极,以促进废水脱
Jiannan Li1, Yujie Feng1, Ye Qiu1
1State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
Bioresource technology
|June 13, 2023
概括
在微生物电化学系统中使用玉米优化阳极结构可以增强自性脱. 这种具有成本效益的方法改善了为更清洁的废水处理提供电子的供应.
科学领域:
- 环境科学 环境科学
- 电化学 电化学 电化学
- 微生物学 微生物学
背景情况:
- 微生物电化学系统 (MES) 提供具有成本效益和清洁的自营性脱.
- 在MES中脱率受到阴极电子的可用性所限制.
- 优化阳极结构对于增强电子的产生和转移至关重要.
研究的目的:
- 研究农业废弃物 (玉米) 作为一种低成本的碳来源,在一种新的三明治结构阳极中使用.
- 为了优化阳极设计以控制碳源释放和改进电子收集.
- 通过结构性阳极修改,提高MES的自性脱性能.
主要方法:
- 利用农业废物 (玉米) 作为三明治结构的阳极中的碳来源.
- 使用COMSOL软件指导阳极的设计,指定孔径 (4毫米) 和电流收集器排列 (五个分支).
- 使用3D打印技术制造了优化的阳极结构.
主要成果:
- 优化的三明治结构阳极实现了明显更高的脱效率21.79±0.22gNO3--N/m3d.
- 性能提升归因于优化阳极所带来的自性脱效率的提高.
- 优化的阳极系统的性能优于缺乏孔隙和优化的电流收集器的系统.
结论:
- 使用玉米的新型三明治结构阳极有效地增强了用于MES自性脱的电子生产.
- 优化阳极设计,包括孔径大小和电流收集器布局,是提高脱效率的可行策略.
- 本研究提出了一种实际方法,用于提高MES在废水处理中的性能,使用可持续材料和结构工程.
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