提高Ni (II),Cd (II) 和Cu (II) 从水溶液中吸附的效率,使用石/酸盐复合物:批量和连续研究
Esmaeil Allahkarami1, Ebrahim Allahkarami2, Amirreza Azadmehr3
1Department of Petroleum Engineering, Faculty of Petroleum, Gas and Petrochemical Engineering, Persian Gulf University, Bushehr, Iran.
Environmental science and pollution research international
|September 15, 2023
概括
一种新型的页岩/酸盐复合物 (SC/AL) 吸附剂有效地从废水中去除Ni,Cu,Cd等重金属. 这种绿色吸附剂显示出高容量,可重复使用性和适用于批量和列净化过程.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 吸附技术 吸附技术是一种吸附技术.
背景情况:
- 工业废物流往往含有有毒的重金属,如 (Ni) 铜 (Cu) 和 (Cd).
- 有效地去除这些污染物对于环境保护和公共卫生至关重要.
- 开发高效,可重复使用和具有成本效益的吸附剂是研究的一个关键领域.
研究的目的:
- 为了合成石/酸盐复合物 (SC/AL) 吸附剂.
- 评估SC/AL吸附剂在从水溶液中去除Ni (II),Cu (II) 和Cd (II) 的效率.
- 在批量和列系统中研究吸附机制和性能.
主要方法:
- 石/酸盐复合物 (SC/AL) 吸附剂的合成.
- 使用X射线光,X射线衍射,FTIR和BET分析进行表征.
- 批量和列吸附实验以确定最佳参数 (pH,接触时间,温度,度) 并评估动力学,热力学和可重复使用性.
主要成果:
- 在pH 5.0下,SC/AL复合物具有很高的吸附能力:Ni 124.79 mg/g,Cu 111.78 mg/g,Cd 119.78 mg/g 在pH 5.0下.
- 吸附遵循伪第一阶动力学,暗示了吸附机制,热力学研究表明了自发的内热吸附.
- 在5个再生周期后,吸附剂保持了大约85%的容量,在柱子研究中显示出出色的可重复使用性.
结论:
- 合成的SC / AL复合物是一种高效且可重复使用的吸附剂,用于从废水中去除Ni (II),Cu (II) 和Cd (II).
- 吸附过程由物理吸附控制,是自发的和内热的.
- 该SC/AL吸附剂为重金属整治提供了一个有希望的,绿色的,商业可行的解决方案.
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