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在有机污染物降解的环境相关度下,通过溶解的Fe(III) 激活甲基硫酸盐

Jianan Chen¹, Longjiong Chen¹, Leliang Wu¹

¹School of Environment, Jiangsu Province Engineering Research Center of Environmental Risk Prevention and Emergency Response Technology, Jiangsu Engineering Lab of Water and Soil Eco-remediation, Nanjing Normal University, Nanjing 210023, China.

International journal of molecular sciences

|February 13, 2025

概括

铁III/甲基硫酸盐 (MBS) 工艺有效降解废水中的有机污染物. 这种先进的氧化工艺 (AOP) 显示出高效处理的前景,减少了铁污泥的产生.

科学领域:

环境化学环境化学
水处理技术水处理技术
先进的氧化过程 (AOPs)

背景情况:

铁催化低价值硫种正在成为废水处理的有价值的AOP.
甲基硫酸盐 (MBS) 是一种常见的硫种,在水中分解为二硫酸盐.
现有的AOP经常面临铁污泥形成等挑战.

研究的目的:

调查Fe (III) /MBS工艺对有机污染物降解的有效性.
评估该工艺的潜力,以尽量减少铁污泥的产量.
阐明有机污染物的降解途径和动力学.

主要方法:

在环境相关度下使用的Fe (III) 和代谢硫酸盐 (MBS).
在不同的条件下 (pH,温度,度) 评估了酸7 (AO7) 的降解.
采用气体染色学-质谱学 (GC-MS) 和理论计算来确定降解途径.

主要成果:

在Fe (III) /MBS过程中,经过伪第一阶动力学,证明了AO7的有效降解.
基基 (HO•) 和硫酸盐基 (SO4•−) 被确定为关键的反应物种.
像Cl−这样的无机离子的影响最小,而HCO3−和酸则表现出抑制作用.

结论:

(III) /MBS工艺是降解废水中的有机污染物的有希望的AOP.
这种方法提供了一个潜在的解决方案,可以加速污染物去除,同时减轻铁污泥.
降解途径包括N=N裂变,氧化和抽取.

关键词:

降解机制的降解机制铁离子是铁离子的一种.甲基硫化物甲基硫化物有机污染物有机污染物硫酸盐基是什么硫酸盐基是什么

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