来自铁废的纳米零价值铁/生物炭活性硫酸用于与共存的微塑料一起进行p-arsanilic酸去污染
Zihan Shu1, Hailan Yang1, Shujing Ye2
1College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China; Shenzhen Research Institute of Hunan University, Shenzhen 518055, China.
Journal of environmental sciences (China)
|October 31, 2024
概括
这项研究开发了一种先进的氧化系统,使用含铁的生物炭和硫酸盐来有效地从水中去除p-arsanilic acid (AA) 和其有毒的无机副产品,即使存在微塑料.
科学领域:
- 环境化学环境化学
- 水处理技术水处理技术
- 材料科学 材料科学 材料科学
背景情况:
- 酸 (AA) 是一个令人担忧的环境污染物,因为它转化为有毒的无机化合物.
- 没有充分了解AA的去除机制,尤其是在微塑料存在的情况下.
- 开发有效的AA降解方法和无机控制方法对于环境保护至关重要.
研究的目的:
- 用先进的氧化系统研究p-arsanilic acid (AA) 的降解和控制无机.
- 为了评估充满纳米零价值铁 (ISBC) 的生物炭的有效性,由硫酸盐 (PDS) 激活,用于水处理.
- 了解微塑料对AA及其副产品去除过程的影响.
主要方法:
- 从钢铁厂的铁废和木制备ISBC.
- 在水性介质中应用ISBC/PDS高级氧化系统进行AA降解.
- 分析无机离子 (HCO3-,Cl-) 和微塑料对去除效率的影响.
主要成果:
- 通过ISBC/PDS系统实现了99%以上的AA降解.
- 来自AA的无机 (As(III)) 被有效氧化为As(V) 并通过ISBC去除.
- 微塑料对AA降解的影响很小,但影响了无机的运输.
结论:
- ISBC/PDS系统提供了一种有效的方法来去除p-arsanilic酸和控制水中的无机.
- 了解微塑料等共存物质的作用对于现实世界水处理应用非常重要.
- 这项研究为环境修复的先进氧化过程提供了宝贵的见解.
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