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聚硫酸盐衍生陶石用于Sb(V) 从酸性矿井排水中去除:性能和固定机制

Xinbing Zhang¹, Zhantao Han², Nan Chen³

¹School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing 100083, China; Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing, China.

Environmental research

|February 25, 2026

概括

一种新的陶石材料有效地从酸性矿井排水中去除 (V). 它使用聚硫酸盐 (PFS) 和天然材料合成,显示出高效率和良好的再生能力,为环境修复提供了具有成本效益的解决方案.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
地质化学地质化学

背景情况:

反 (Sb) 污染,特别是Sb (V),是酸性矿井排水 (AMD) 中的一个关键问题.
基于铁的材料显示出Sb(V) 移除的希望,但受到物种化和离子干扰的阻碍.
开发高效和稳定的吸附剂对于AMD治疗至关重要.

研究的目的:

开发和描述一种新型的聚硫酸盐 (PFS) 衍生陶石,用于从AMD中去除Sb (V).
研究合成参数,特别是烧结温度和大气对Sb (V) 去除效率的影响.
评估开发的陶矿的吸附机制,动力学,异热和再生性能.

主要方法:

由PFS衍生出的陶石,用本托尼特粘合剂和玉米毛孔形成剂合成.
优化烧结温度和大气层用于陶矿合成.
批量吸附实验以确定Sb(V) 去除效率,动力学和异热模型.
使用表面复杂化和共同沉的吸附机制的分析.
使用酸洗周期的再生研究.

主要成果:

优化的陶石实现了97.9%的Sb (V) 清除效率.
吸附遵循伪二次动力学和弗洛伊德利希等温,表明异质表面的多层吸附.
在常见的共存离子和真实AMD水的存在下,有效的Sb(V) 清除被维持.
再生研究表明,在重复的酸洗周期后,Sb (V) 清除率为86%.
内球复杂化和Fe-Sb共降被确定为主要的去除机制.

结论:

来自PFS的陶石是Sb (V) 从AMD中去除的高效吸附剂.
该材料表现出对干扰离子的强度和良好的可重复使用性.
这种新型陶石为对污染水的环境整治提供了一个有希望的,具有成本效益的解决方案.

关键词:

酸矿井排水系统酸矿井排水系统抗 (((V) 是一种陶矿是一种陶矿.铁基材料是基于铁的材料.聚二硫酸铁酸盐的使用方法

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