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铁酸盐 (VI) /碳酸盐用于微污染物的氧化:互动激活和释放低度过氧化,以有效利用电子
Zhongjuan Wang1, Xi Yang2, Qi Du3
1State Key Laboratory of Hydraulics and Mountain River Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China; Sino-German Centre for Water and Health Research, Sichuan University, Chengdu 610065, China.
一个新的酸盐/碳酸盐 (Fe (VI) / SPC) 工艺有效降解普洛素和微污染物. 这种先进的氧化方法提高了污染物的去除,并减少了与传统处理相比的毒性.
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:
- 齐普洛素 (CIP) 和其他微型污染物 (MP) 构成环境风险.
- 传统的治疗方法往往对不同的国会议员效率有限.
研究的目的:
- 研究一种用于MP降解的新型酸盐/超碳酸盐 (Fe(VI) /SPC) 同氧化工艺.
- 阐明Fe(VI) 和SPC在污染物清除中的协同作用机制.
主要方法:
- 使用Fe ((VI) /SPC联合氧化处理CIP和各种MP.
- 通过中间分析和激素检测来研究反应机制.
- 通过非可净化有机碳 (NPOC) 测量评估降解效率.
- 使用急性毒性试验评估的毒性.
主要成果:
- 铁 (VI) /SPC与H2O2和Na2CO3.3相比,表现优于铁 (VI) 的性能.
- SPC释放的H2O2促进了Fe(VI) 的中间体,而Fe(VI激活了SPC产生基基 (·OH).
- 综合工艺使MP降解得到了20-30%的改善,并使速率常数增加了1-3倍.
- ·OH参与降低了CIP的NPOC从5.43至4.37 mg/L.
- 铁VI) /SPC处理导致CIP的更多化,并显著降低了其光抑制毒性.
结论:
- Fe ((VI) / SPC 同氧化过程提供了丰富的电子和缺乏电子的MP的增强降解.
- 这种协同作用的过程实现了有效的污染物去除和有效的排毒.
- 铁VI) / SPC方法为先进的水处理提供了一个有前途的方法.
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