沿海地区的反应性氧物种生产由流动诱导的染色分离过程控制
Xiaochuang Bu1,2, Man Tong1, Cong Zhang1
1State Key Laboratory of Geomicrobiology and Environmental Changes, China University of Geosciences, NO. 68 Jincheng Street, East Lake High-Tech Development Zone, Wuhan 430078, P. R. China.
Environmental science & technology
|October 17, 2025
概括
河岸地区的反应性氧物种 (ROS) 生成是由色谱分离过程驱动的. 水流控制氧和减热剂之间的相互作用,影响过氧化的生产和分配.
科学领域:
- 环境化学环境化学
- 水文学的水文学
- 生物地质化学生物地质化学
背景情况:
- 沿海地区是活性氧物种 (ROS) 生产的关键区域.
- 在这些区域内,ROS的时空动态尚不清楚.
研究的目的:
- 调查在沿海地区控制过氧化 (H2O2) 生产的机制.
- 了解水流和氧化还原反应在ROS动态中的作用.
主要方法:
- 结合流体实验与反应式运输建模.
- 模拟的地表水流入和逆流场景.
主要成果:
- 氧化剂和减少剂的染色学分离控制了H2O2的产生.
- 在边界附近的溶解氧 (DO) 消耗产生H2O2,而酸盐则透得更深.
- 酸盐的流入通过允许更深的DO透,扩大了ROS生产面积.
结论:
- 水力动力学运输和氧化还原反应结合起来,调节河岸含水层中的H2O2动态.
- 这种理解对地下水与河流界面的污染物减弱和碳循环有影响.
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