增强的电氧化/电凝-超膜工艺与S2O42-用于含盐藻的表面水处理:净化和膜性能
Wei Song1, Bingxuan Li1, Zhongjian Zhuang1
1School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China.
Environmental pollution (Barking, Essex : 1987)
|February 2, 2024
概括
这项研究引入了一种增强的电氧化/电凝-超 (EO/EC-UF) 工艺,使用二酸盐 (DTN) 处理藻污染的水. DTN@EO/EC-UF方法有效地去除污染物并提高膜性能.
科学领域:
- 环境科学 环境科学
- 水处理技术水处理技术
- 材料科学 材料科学 材料科学
背景情况:
- 沿海地表水面临来自盐水入侵和水产养殖的污染.
- 藻类繁殖和新出现的污染物对水生生态系统构成风险.
- 有效地处理盐水,含藻类的水对于生态健康至关重要.
研究的目的:
- 为藻污染的水开发一种增强的电氧化/电凝-超 (EO/EC-UF) 工艺.
- 评估dithionate (S2O4^2-, DTN) 在改善EO/EC-UF过程中的有效性.
- 评估DTN对净水,膜性能和防物质的影响.
主要方法:
- 开发一个DTN增强的电氧化/电凝-超系统 (DTN@EO/EC-UF).
- 为EO/EC过程优化DTN剂量和操作条件.
- 将优化的DTN@EO/EC工艺与超过 (UF) 结合起来,用于盐藻水处理.
主要成果:
- 通过添加DTN,可以显著消除NH3-N (95.1%),UV254 (89.4%) 和藻类 (75.7%).
- 最佳的DTN剂量为40 mg/L使用的活性物种 (SO4·-, ·OH) 进行增强的净化.
- 提高了陶膜的透性和防腐特性,增加了特定流量.
- DTN@EO/EC-UF证明了含有藻类的盐水表面水的有效处理.
结论:
- DTN@EO/EC-UF流程为处理藻污染的表面水提供了一种新且有效的解决方案.
- DTN显著提高了水的净化,膜的透性和防腐性质.
- 该过程为沿海地区的可持续水资源管理提供了一个有希望的替代方案.
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