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通过活性碳预处理从生产的水中采用/Al-LDH的回收中的不纯度屏蔽

Yanan Pan¹, Wencai Zhang¹

¹Department of Mining and Minerals Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, United States.

ACS sustainable chemistry & engineering

|September 12, 2025

概括

活性炭预处理有效地从产生的水中去除杂质,通过/层双氧化物 (Li/Al-LDH) 吸附增强的回收. 这种杂质屏蔽方法提高了提取效率和稳定性.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.

背景情况:

生产的水 (PW) 含有有机污染物和竞争性离子,干扰回收.
这些杂质阻碍了/层双氧化物 (Li/Al-LDH) 的吸附,降低了回收效率.
现有的方法很难减轻吸附过程中杂质引起的干扰.

研究的目的:

开发一种基于活性炭 (AC) 的预处理策略,以提高PW中的 (Li+) 吸附效率.
调查AC预处理对去除杂质和Li/Al-LDH结构完整性的影响.
评估AC预处理对Li+吸附能力,动力学和选择性的影响.

主要方法:

在三种生产水 (PW) 源中选两种商业活性碳 (AC).
确定最佳的AC剂量和接触时间,以有效去除杂质.
在AC前处理后对Li/Al-LDH的Li+吸附能力,动力学和选择性的评估.

主要成果:

交流预处理有效地去除了有机化合物和双价,改善了吸收的水环境.
交流处理保留了Li/Al-LDH的结构完整性,减少了由coadsorbed有机物引起的降解.
在AC预处理后,+吸附能力显著增加,而动力学保持不变,选择性略有改善.

结论:

活性炭作为保护性预处理,间接允许从产生的水中获得更高效,更稳定的回收.
杂质屏蔽方法通过减轻干扰来增强吸附,而不是直接增加吸附.
该战略为重要的矿物回收提供了一个可扩展的,对环境无害的途径,支持可持续的水处理和循环经济原则.

关键词:

李/阿尔-LDHH 的意思活性炭预处理过程中的活性炭绿色提取方法绿色提取方法的选择性可以选择.产生的水是生产的水.结构稳定结构稳定

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