拟自然堆存条件下pH值对赤泥中稀有金属的浸出影响

荣思睿; 彭道平; 陈剑楠

doi:10.13205/j.hjgc.202005027

拟自然堆存条件下pH值对赤泥中稀有金属的浸出影响

doi: 10.13205/j.hjgc.202005027

西南交通大学地球科学与环境工程学院, 成都 611730

基金项目:

国家自然科学基金"垃圾填埋场有机改性黏土防水垫层的渗透机理研究"(41701347)。

详细信息

作者简介:
荣思睿(1994-),女,硕士研究生,主要研究方向为固体废弃物处置与资源化。rongsiui@foxmail.com

通讯作者:
彭道平(1985-),男,博士,副教授,主要研究方向为地下水环境效应及其应用研究。pdp0330@swjtu.edu.cn

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出版历程
- 收稿日期: 2019-04-16

EFFECT OF pH VALUE ON LEACHING OF RARE METALS FROM RED MUD IN SIMULATED NATURAL STORAGE CONDITIONS

Faculty of Geosciences and Environment Engineering, Southwest Jiaotong University, Chengdu 611730, China

摘要

摘要: 通过采集5个不同铝厂的赤泥样品进行序批式浸出实验,模拟自然堆存条件下赤泥中稀有金属在不同pH值时的浸出行为。结果表明:样品中La、Sc、Y的浸出率随pH值升高而降低,在极酸条件(2
- 赤泥 /
- 稀有金属 /
- pH /
- 自然堆存 /
- 浸出特性
Abstract: In our study, five kinds of red mud samples from different aluminum factories were collected for sequencing batch leaching experiment to simulate the leaching behavior of rare metals of red mud in natural storage condition under different pH. The results showed that the leaching rates of La, Sc and Y decreased with the increase of pH, reached 45%, 82% and 64% respectively under extremely acidic conditions (2
Key words:
red mud /

rare metals /

pH /

natural storage /

leaching characteristics

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参考文献(30)

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