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在酸性废水中取的酸功能化聚胺/酸液凝,用于取的取

Zhongran Dai¹, Huinan Wu¹, Lijie Chen¹

¹Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China.

Carbohydrate polymers

|June 1, 2024

概括

一种新型的植物酸功能化聚胺/酸盐凝 (PAG) 有效地从酸性废水中去除 (U(VI)). 这种可持续的解决方案提供了高容量和选择性,满足饮用水标准.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
核工程核工程是指核工程.

背景情况:

放射性废水对环境构成风险.
从酸性水中选择性地去除是具有挑战性的.
可持续的核能需要有效的废水处理.

研究的目的:

开发一种高效和选择性的吸附剂,用于去除 (U ((VI)).
研究一种新型的植物酸功能化聚胺/酸基凝 (PAG).
解决从酸性废水中提取的挑战.

主要方法:

一个步骤的水热合成的植物酸功能化聚胺/酸基凝 (PAG).
吸附实验以确定U(VI) 的容量,选择性和动力学.
在多个吸附-脱附周期的重复使用性测试.
使用XPS和DFT分析实际受污染的地下水和阐明机制.

主要成果:

在60分钟内,PAG在pH2.50.0下达到U(VI) 的吸附平衡.
理论上最大的吸附能力达到218.34 mg/g.
在5个循环后保持了90%以上的去除效率.
从受污染的地下水中去除了94.1%的U ((VI),符合世卫组织的标准.
乌兰离子与酸盐和胺基组协调.

结论:

PAG水凝显示出高效率和选择性,用于从酸性废水中去除U(VI).
该材料在真正受污染的地下水中显示出出色的可重复使用性和性能.
PAG水凝是处理矿和金废水的有希望的候选者.

关键词:

吸附方式吸附方式吸附方式阿尔金酸盐是一种酸盐.放射性废水是放射性的废水.是一种.

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