一个新型的Cu/Fe阴极,通过易于氧化回氧途径通过电扇辅助的电化工艺以电催化方式进行醇降解
YeXin Liang1, Mingzhe Yuan1, Haimei Cheng1
1Guangzhou Institute of Industrial Intelligence, Guangzhou 511400, PR China.
Water research
|November 10, 2024
概括
一种基于Fe/Cu的新型阴极 (CCFFO) 通过电和电芬顿工艺有效地处理废水. 这种持久的阴极快速降解,以最小的副产品实现COD和TOC的高去除效率.
科学领域:
- 环境科学 环境科学
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
背景情况:
- 废水的电化学处理往往忽视了阴极的功能.
- 现有的方法可能需要额外的试剂,如H2O2或Fe2+.
研究的目的:
- 开发一种增强的Fe/Cu基阴极 (CCFFO),用于高效的废水处理.
- 研究电和电芬顿工艺的协同效应.
- 评估阴极的性能,耐用性和机制.
主要方法:
- 使用简单的氧化还原方法制造一个CuOCu@Fe-Fe2O3-x (CCFFO) 阴极.
- 电解系统使用NaCl电解质进行电和电芬顿.
- 参数的优化:电解质度,电流密度,通风,pH值和电极间距.
- 对降解,中间体 (GC/MS) 和激光火实验的分析.
- 长期连续流量测试 (500小时).
主要成果:
- 在10分钟内,醇度从100 mg/L降至<0.5 mg/L.
- 实现了99.5%的醇降解效率.
- 化学氧气需求 (COD) 的高降解效率达63.5%,总有机碳 (TOC) 的高降解效率达80.25%.
- CCFFO阴极显示出超过500小时的优异耐用性,并防止了酸盐的形成.
- 确定了电化作为主要降解途径,由电芬顿辅助.
结论:
- CCFFO阴极通过联合电化学工艺显著增强了类废水处理.
- 开发的系统为工业废水提供了高效,持久和潜在的成本效益的解决方案.
- 这项研究为以阴极为中心的废水处理提供了一种新的方法,最大限度地减少有害的副产品.
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