使用侧向阳极配置优化电动力学修复以去除污染物和电化/脱水
Ahmed Abou-Shady1, Doaa Eissa2, Osama Abd-Elmottaleb2
1Soil Physics and Chemistry Department, Water Resources and Desert Soils Division, Desert Research Center, El-Matariya, Cairo, 4540031, Egypt. aboushady@drc.gov.eg.
Scientific reports
|October 25, 2024
概括
本研究将侧向阳极引入土壤电动力学修复 (SEKR) 系统,提高无机污染物清除和脱水效率,以最小的能量增加. 新的设计显示了对成本效益高的土壤处理的前景.
科学领域:
- 地质技术工程 地质技术工程
- 环境工程 环境工程
- 电动力学修复 电动力学修复
背景情况:
- 土壤电动力学 (SEK) 是一种应用在土壤修复,脱水和土地恢复中的多功能技术.
- 在过去的30年里,开发了150多个瑞典克朗的工艺设计修改,以最大限度地提高性能.
- 在SEK系统中侧面电极/阳极的集成以前没有被记录.
研究的目的:
- 为了提高穿孔正极管土壤电动力学修复 (SEKR) 系统 (PCPSS) 的性能.
- 调查安装横向阳极 (LA-PCPSS) 清除无机污染物的有效性.
- 为了比较两个方法:不同的应用电压源 (DSAV) 和相同的应用电压源 (SSAV).
主要方法:
- 侧向阳极 (LA-PCPSS) 的实施与一个穿孔天极管道系统集成.
- 应用两个电压供应策略:DSAV和SSAV.
- 利用塔古奇方法 (L9OA) 为DSAV系统优化应用电压.
主要成果:
- 优化在1V cm-1的DSAV-(LA-PCPSS) 系统显示了最好的响应在高酸中本土Sr去除.
- 在位置B的侧面阳极应用低电压 (0.5V cm−1) 显著改善了电化 (EO) 速率/脱水.
- 在实际污染土壤修复过程中,在SSAV-LA-PCPSS系统中观察到反向离子迁移.
结论:
- DSAV-(LA-PCPSS) 设计对无机污染物的SEKR有效,并增强了脱水.
- 与传统的PCPSS相比,这种创新的设计提供了最小的额外能源消耗,具有经济优势.
- 对于强化和高效的土壤修复过程,DSAV-LA-PCPSS系统需要进一步优化.
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