从雨水中去除铜,使用粉末活性炭处理水,使用残留涂层钢来处理雨水
Siavash Ebrahimzadeh1, Guanghui Hua1, Christopher Schmit1
1Department of Civil and Environmental Engineering, South Dakota State University, Brookings, SD, 57007, USA.
Journal of environmental management
|October 20, 2025
概括
一种新型吸附剂,粉状活性碳水处理残留物 (PAC-WTR) 与钢 (PAC-SS) 结合,有效地从雨水中去除铜. 这种可持续材料还可以回收和重复使用铜,为水污染提供一个环保的解决方案.
科学领域:
- 环境化学环境化学
- 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:
- 铜 (Cu) 是来自交通源的持续性雨水污染物,威胁水生生态系统.
- 可持续的处理方法对于减轻水体中的铜积累至关重要.
研究的目的:
- 开发一种新型吸附剂 (PAC-SS) 来从雨水中去除铜.
- 在各种条件下研究吸附剂的特性和性能.
- 评估铜的回收和吸附剂的可重复使用性.
主要方法:
- 物理结合粉状活性炭水处理残留物 (PAC-WTR) 与钢,以产生PAC-SS.
- 使用SEM-EDS和FTIR进行表征.
- 用不同的条件 (pH,剂量,同时存在的物质) 进行批量和列吸附实验.
- 溶解和循环吸附-溶解研究.
主要成果:
- PAC-SS证明了铜的快速吸附,在12-24小时内达到平衡.
- 吸附效率很高,除冰化学品的影响有限,但湿酸,Pb2+和Zn2+的减少.
- 使用HCl实现了有效的铜回收,吸附剂在五个周期内保持了高的去除效率.
- 柱体研究显示,在现实雨水中的432个空床体积中,铜的去除稳定 (82-87%).
结论:
- PAC-SS是一种高效的吸附剂,用于从雨水中去除和回收铜.
- 该材料促进了工业副产品 (钢渣和WTR) 的有益再利用.
- PAC-SS提供了一种可持续和有效的解决方案,用于管理雨水下水中的铜污染.
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