从受污染的地下水中去除,使用带有戈的复合微孔膜去除
Mohit Verma1, Vijay A Loganathan1
1Civil Engineering Department, Indian Institute of Technology Ropar, Rupnagar, Punjab, India.
The Science of the total environment
|October 25, 2024
概括
这项研究引入了一种新型的石载荷膜 (GLM),用于有效地从受污染的地下水中去除. GLM有效地降低了含量,低于饮用水标准,能耗低.
科学领域:
- 环境科学与工程环境科学与工程
- 材料科学 材料科学 材料科学
- 水处理技术水处理技术
背景情况:
- 地下水被污染给环境和健康带来了重大风险.
- 传统的去除方法可能是能源密集型和昂贵的.
- 开发高效,低能耗的水处理解决方案至关重要.
研究的目的:
- 开发和表征一种新型的化物载荷复合材料微过膜 (GLM) 用于去除.
- 使用表面复合模型阐明GLM上的吸附机制.
- 在环境相关条件和低能耗要求下评估GLM的性能.
主要方法:
- 在聚 (乙烯基化物) (PVDF) 微过膜上固定goethite纳米棒.
- 使用批量实验和表面复杂化建模 (SCM) 调查U(VI) 吸附.
- 在现场相关的pH值 (8.5) 和不同的液压停留时间下对GLM的性能评估.
主要成果:
- 最佳的U(VI) 吸附率为4.95μg·mg−1,可在1.20 mg·cm−2.2的戈希负载下实现.
- GLM对275升水进行了200μg·L−1 U(VI) 的处理,使其低于世卫组织限制 (30μg·L−1).
- 在批量和膜实验中观察到的SCM精确预测了吸附趋势 (RMSE为0.055).
结论:
- 这种新型的石载荷膜显示出有效从受污染的地下水中去除的巨大潜力.
- 该研究阐明了通过双酸盐表面复合物形成的吸附机制.
- 在水处理中,GLM提供了一种低能耗,高效的解决方案,用于整治.
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