工业RO废弃物电流电极电容淡化工业RO废弃物
Asha Mathew1, Manokaran Janakiraman1, Jhanani Raji Karunagaran1
1Department of Chemical Engineering, AC Tech, Anna University, Chennai, 600025, Tamil Nadu, India.
概括
这项研究通过使用导电性ZnO/rGO材料和表面活性剂来增强工业盐处理的流电极电容脱离离 (FCDI). 这提高了盐去除效率,提供了更有效的海水淡化解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 环境工程 环境工程
背景情况:
- 流电极电容脱离离 (FCDI) 是高盐度工业盐处理的有效方法.
- 内部电阻限制了当前的FCDI海水淡化性能,需要具有高导电性的电极材料.
- 流电极中的粒子对粒子接触较差会加剧内部电阻.
研究的目的:
- 为了比较活性炭 (AC),减少氧化石墨烯 (rGO) 和ZnO/rGO复合流电极的海水淡化性能.
- 为了研究阴离子表面活性剂对流电极性能和FCDI性能的影响.
- 为了降低FCDI系统中的内部电阻并增强离子传输.
主要方法:
- 合成和表征rGO和ZnO/rGO复合材料用于流电极.
- 加入了阴离子表面活性剂,以改善活性材料的分散和质量负荷.
- 修改FCDI系统的评估海水淡化性能,包括盐去除效率.
主要成果:
- ZnO/rGO实现了73%的盐去除效率,在5 wt%的负载下超过了AC (63%).
- 用表面活性剂修改的ZnO/rGO流电极,负载7 wt%显示了81%的盐去除效率.
- 表面活性剂增强了导电网络,粒子接触和离子传输,减少了扩散路径.
结论:
- 与AC相比,ZnO/rGO复合材料显著提高了FCDI海水淡化性能.
- 表面活性剂的修改通过优化电极结构和导电性来进一步提高FCDI效率.
- 开发的FCDI系统对有效的工业盐水处理有很大的前景.
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