在批量工艺和柱状试验中通过对超分子聚合物的吸附来修复Hg污染的地下水
Zongwu Wang1, Wei Liu1, Xiaoyan Sun1
1Department of Environment Engineering, Yellow River Conservancy Technical Institute, Kaifeng Engineering Research Center for Municipal Wastewater Treatment, Kaifeng 475004, China.
Molecules (Basel, Switzerland)
|April 26, 2025
概括
一种新的超分子聚合物 (SP) 有效地从高盐度地下水中去除低度的. 这种材料具有很高的吸附能力和选择性,为污染水的整治提供了有希望的解决方案.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 水处理 处理水的方法
背景情况:
- 地下水中的污染对人类健康和生态系统构成重大风险.
- 修复受污染的地下水,特别是在高盐度环境中,是一个持续的环境挑战.
研究的目的:
- 评估一种合成的超分子聚合物 (SP) 在从高盐度地下水中去除低度的有效性.
- 评估SP的性能作为一个透反应屏障 (PRB),用于持续的地下水整治.
主要方法:
- 进行了批量吸附实验,以确定吸收能力和选择性.
- 进行了列测试,以模拟在动态流量条件下的PRB性能.
- 包括SEM,XPS和FT-IR在内的表征技术被用于阐明去除的机制.
主要成果:
- SP表现出高吸附能力 (在批量测试中高达926.1毫克-1克,在列测试中高达3187毫克-1克),具有优异的选择性.
- 最佳吸附条件包括pH值升高,溶解有机物质升高,离子强度降低.
- 和亚当斯-博哈特模型在柱体测试中准确地描述了动态拦截过程.
结论:
- 合成的高分子聚合物是一种高度有效的材料,用于修复盐地下水中的微量.
- 该SP显示了在可通反应屏障技术中可用于可持续净水的显著应用潜力.
- 复合,静电吸引,离子交换和沉/共同沉被确定为关键的去除机制.
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