使用活性炭从人工充电的水中去除微污染物的评估
Martina Švábová1, Marek Šváb2, Maryna Vorokhta1
1Institute of Rock Structure and Mechanics, Academy of Sciences of the Czech Republic, V Holešovičkách 94/41, Prague 18209, Czech Republic.
Journal of hazardous materials
|May 14, 2025
概括
颗粒状活性炭有效地从饮用水中去除微污染物,Aquasorb 5005显示出卓越的性能. 关键的去除因子包括pH依赖的八醇/水分区系数,分子电荷和极地表面积.
科学领域:
- 环境科学 环境科学
- 水处理工程水处理工程
- 分析化学 分析化学
背景情况:
- 水源中的微污染物污染对环境和健康构成重大挑战.
- 传统的水处理方法往往难以有效地去除各种微污染物.
- 颗粒活性炭 (GAC) 是一种广泛使用的吸附剂,但其在现实条件下去除微污染物的性能需要进一步研究.
研究的目的:
- 评估三种颗粒状活性炭 (GAC) 在试点规模上去除微污染物的长期有效性.
- 评估GAC在模仿中央波希米亚水厂的运行条件下对微污染物清除的适用性.
- 确定影响各种微污染物的去除效率的关键物理化学参数.
主要方法:
- 试点规模的柱子装有三种不同的GAC类型,经过25个月的运行,使用了真正的河水流入.
- 每月对222种微污染物进行采样和分析.
- 监测了水质参数,包括pH值,微污染物特性 (例如,八醇/水分区系数,电荷,极地表面积) 与去除率相关.
主要成果:
- 所有经过测试的GAC列都显示出有效地去除或大幅减少大多数微污染物.
- 观察到影响微污染物度的显著季节性变化.
- Aquasorb 5005具有较高的表面积和中等孔含量,具有最佳的整体微污染物去除性能.
- 取决于pH的八醇/水分区系数 (log Kow) 成为去除微污染物的最关键参数,其次是分子电荷和极地表面积.
结论:
- GAC过是一种可行的,有效的技术,可以在饮用水处理中去除广泛的微污染物.
- 选择合适的GAC材料,考虑到其多孔结构和表面特性,对于优化移除效率至关重要.
- 了解微污染物的物理化学性质的影响,特别是它们的分离行为和极性,对于预测和提高去除效率至关重要.
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