通过在不对称的流电极电化学分离系统中的自我化,有效地从地下水中去除
Haoyu Yin1, Lihu Liu1, Jinxing Ma2
1Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture and Rural Affairs, Hubei Key Laboratory of Soil Environment and Pollution Remediation, State Environmental Protection Key Laboratory of Soil Health and Green Remediation, College of Resources and Environment, Interdisciplinary Sciences Institute, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China.
Water research
|October 20, 2023
概括
一个新的不对称的流电极电化学分离 (AFES) 系统有效地从地下水中去除有毒的. 这种电化学方法实现了持续的自我化,增强了的去除,并为污染的水源提供了可持续的解决方案.
科学领域:
- 环境科学 环境科学
- 电化学 电化学 电化学
- 水处理 处理水的方法
背景情况:
- (III) (As) 很难从地下水中去除,因为它的稳定,电中性形式.
- 传统的水处理方法在有效的As (III) 整治中扎.
研究的目的:
- 开发和评估一个不对称的流电极电化学分离 (AFES) 系统,以高效地从地下水中去除.
- 调查自我化机制及其在增强As (III) 清除中的作用.
主要方法:
- 构建一个不对称的流电极电化学分离 (AFES) 系统.
- 在1.2V和初始pH7.5.5时,用电化学处理污染的地下水.
- 分析了总 (T-As) 度,能源消耗和20个周期的系统稳定性.
主要成果:
- 在90分钟内,AFES系统将T-As从150.0降低到8.9μg L−1在低能耗 (0.04 kWh m−3) 的情况下.
- 由H2O2生成和H+吸附驱动的自我化,促进了 (III) 氧化到 (V) 氧化,以有效去除.
- 该系统证明了稳定性,对实际地下水的有效性和pH恢复性.
结论:
- 在地下水中,AFES系统提供了一种新,高效,稳定的途径,用于 (III) 排毒.
- 持续的自我化是提高电化学分离过程性能的关键.
- 这项技术为应对被 (III) 污染的地下水挑战提供了一个有希望的解决方案.
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