增强的Cr(VI) 从水中通过石浸活性炭与弱电场相结合的消除
Bing Li1, Weiquan Li1, Qian Zuo1
1School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China.
Environmental research
|January 26, 2024
概括
微弱的电场 (WEF) 增强了使用石浸活性炭从水中去除. 这种方法促进了铁循环,显著增加了消除能力和柱子寿命.
科学领域:
- 环境科学 环境科学
- 水处理 处理水的方法
- 材料科学 材料科学 材料科学
背景情况:
- 六价 (Cr(VI)) 是水中的有毒污染物.
- 石浸活性炭 (FeOOH@AC) 在Cr6的去除方面表现有前途.
- 提高Cr(VI) 整治材料的效率和寿命至关重要.
研究的目的:
- 调查使用弱电场 (WEF) 来促进FeOOH@AC上的Fe (III) /Fe (II) 循环,以提高Cr (VI) 的消除.
- 评估WEF对连续流柱的性能和使用寿命的影响.
主要方法:
- 合成和表征的石浸活性炭 (FeOOH@AC).
- 在装有FeOOH@AC.的连续流柱中使用弱电场 (2 mA cm−2).
- 在处理前后分析了表面特性和Cr物种分布.
主要成果:
- 在FeOOH@AC.上,WEF促进了电子转移,促进了Fe(III) 减少到Fe(II) 的过程.
- 生成的Fe (II) 有效地将Cr (VI) 降低到Cr (III),然后沉.
- 与FeOOH@AC列相比,WEF-FeOOH@AC列显示了104%更高的Cr (VI) 消除能力和90%更长的使用寿命.
结论:
- 弱电场的应用是一个可行的策略,可以通过FeOOH@AC来增强Cr6的消除.
- 世界环境论坛有效地促进了Fe (III) /Fe (II) 反氧循环,提高了污染物清除效率.
- 这种方法为可持续的水资源整治提供了一个有希望的方法.
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