硫法醇在水溶液和土壤泥中经过过化剂的降解和排毒
Longhui Qiu1, Caixia Yan1, Yue Zhang1
1School of Geography and Environment, Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China.
这项研究引入了一种新的方法,仅使用低酸 (NaClO) 来降解水和土壤中的硫酸 (STZ). 该过程是有效的,环保的,并减少生态毒性,而不会损害土壤结构.
科学领域:
- 环境化学环境化学
- 水处理技术水处理技术
- 土壤修复土壤的修复.
背景情况:
- 像硫亚 (STZ) 这样的反复性有机污染物给环境带来了挑战.
- 传统的活性甲 (NaClO) 系统需要特定的激活器来降解污染物.
- 没有激活剂的NaClO直接应用以去除污染物尚未得到充分研究.
研究的目的:
- 仅使用甲 (NaClO) 来研究硫法醇 (STZ) 的直接降解.
- 为了评估NaClO在水和土壤泥环境中的有效性.
- 为了阐明降解机制,并评估NaClO处理对环境的影响.
主要方法:
- 在水和土壤泥中进行STZ降解实验,使用不同度的NaClO.
- 火实验和电子磁共振 (EPR) 分析以确定反应性氧物种.
- 对降解中间体,生态毒性,土壤物理化学性质和植物毒性的分析.
主要成果:
- 在水和土壤泥中分别实现了100%和94.11%的STZ降解,使用NaClO.
- 降解涉及超氧化 (O2•−),氧基 (ClO•) 和基 (•OH).
- 该过程在中性pH值下有效,在矩阵中具有广泛的适用性,并减少生态毒性和植物毒性.
结论:
- 单一NaClO是一种革命性的有效方法,可以在没有激活器的情况下降解STZ.
- NaClO处理是实用的,环保的,对土壤结构和重金属生物可用性影响最小.
- 这种方法为处理受STZ污染的水和土壤提供了有希望的解决方案.
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