洞察 permanganate/peroxymonosulfate 系统的潜在应用:通过无形 MnO 的增强,水矩阵的影响以及使用响应表面方法的优化
Xin Yang1,2, Xiaoshuang Sun1, Jiang Yu1,3,2
1Department of Environmental Science and Engineering, College of Architecture and Environment, Sichuan University No. 24 South Section 1, Yihuan Road Chengdu 610065 P. R. China yuj@scu.edu.cn.
RSC advances
|January 31, 2024
概括
一个新的自催化氧化系统,CUPP,在地下水中有效降解硫甲醇 (SMX). 该系统使用过氧硫酸盐 (PMS) 和酸盐 (KMnO4) 进行有效的污染物清除.
科学领域:
- 环境化学环境化学
- 先进的氧化过程 先进的氧化过程
背景情况:
- 新兴的有机污染物,如硫甲醇 (SMX),污染了地下水.
- 传统的处理方法难以有效地矿化反抗性的有机污染物.
研究的目的:
- 开发和评估一种新型的自催化氧化系统 (CUPP),用于高效地在地下水中矿化SMX.
- 阐明CUPP系统中酸 (KMnO4) 激活过氧硫酸盐 (PMS) 的激活机制.
主要方法:
- 使用PMS和KMnO4.4开发CUPP系统.
- 使用电子自旋共振 (EPR) 和HPLC/MS.反应性氧物种 (ROS) 的表征.
- 使用响应表面方法 (RSM) 的优化.
主要成果:
- CUPP系统实现了高效的SMX矿化.
- 无形的MnO2激活了PMS,产生了多种ROS,包括HO ̇,SO4− ̇,1O2和活性物种.
- 该系统在pH值,离子和自然有机物质的变化方面表现出强度.
结论:
- CUPP系统提供了一种创新和有效的方法,用于降解地下水中的新兴有机污染物.
- 自催化氧化机制为水资源整治提供了一个有前途的战略.
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