影响在零门铁系统中去除三乙烯的因素
Yangyang Sun1, Shichao Liang2, Pengfei Li1
1College of Geographical Science, Harbin Normal University, Harbin 150000, China.
Nanomaterials (Basel, Switzerland)
|April 11, 2025
概括
零价值铁 (ZVI) 芬顿工艺有效降解地下水中的三乙烯 (TCE). 最佳条件包括特定的ZVI剂量和过氧化度,以有效地去除TCE.
科学领域:
- 环境化学环境化学
- 水处理技术水处理技术
- 整治科学 整治科学
背景情况:
- 三乙烯 (TCE) 是一个常见的地下水污染物.
- 零价值铁 (ZVI) 芬顿工艺显示了TCE降解的潜力.
- 在ZVI Fenton系统中影响TCE脱的关键因素需要进一步调查.
研究的目的:
- 使用ZVI芬顿工艺研究各种参数对TCE降解的影响.
- 分析ZVI的结构和形态特性.
- 了解Fe2+度和ZVI表面特性在TCE脱中的作用.
主要方法:
- 在不同的TCE度,H2O2度,ZVI剂量,pH和温度下对TCE降解的实验研究.
- 使用SEM,N2吸附-脱附和XRD进行ZVI的表征.
- 监测Fe2+度及其与TCE降解的相关性.
主要成果:
- ZVI剂量和初始H2O2度显著影响TCE降解.
- 在24小时内在2g/L ZVI和0.53mol/L H2O2的25°C下达到超过97%的TCE降解.
- 采用ZVI芬顿工艺,在广泛的pH值范围和温度,以及从0-200 mg/L的TCE度中有效.
- TCE降解与Fe2+度和ZVI表面氧化膜有关.
结论:
- 采用ZVI芬顿工艺,是污染地下水中TCE整治的一种强大而高效的方法.
- 优化ZVI剂量和H2O2度对于最大限度地降解TCE至关重要.
- 该工艺在各种环境条件 (pH,温度) 中的适用性提高了其实际价值.
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