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减少矿山尾矿中有毒元素的浸出,使用天然的克林诺皮托利化

Rosalinda Ferrel-Luna¹, Maria Elena García-Arreola², Luis Mario González-Rodríguez³

¹Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, 66455, San Nicolás de los Garza, Nuevo León, Mexico.

Environmental science and pollution research international

|June 5, 2023

概括

天然化石 (clinoptilolite) 有效地减少了矿山尾矿中的有毒金属出. 这种土壤修改增加了pH值,并显著降低了和在液中的度.

科学领域:

环境科学环境科学
地质化学地质化学
矿物学是什么?矿物学是什么?

背景情况:

矿山尾矿造成环境风险,原因是潜在有毒元素 (PTEs) 的浸出.
天然热带石 (clinoptilolite) 是一个有前途的土壤修复材料.
了解热带石在减少PTE浸出中的有效性对于环境管理至关重要.

研究的目的:

评价天然化物clinoptilolite在减少矿山尾矿中Cd,Pb和Mn的浸出率方面的有效性.
为了研究热带石合并和pH对PTE浸的影响.
为了描述研究中使用的热带石材料.

主要方法:

使用X射线衍射,FTIR和物理吸收,对土壤和热带石的表征.
硫化的交换处理.
使用带有不同pH载体溶液的包装土壤-地岩柱的液实验.

主要成果:

采石的加入使得土壤的pH值从5.03增加到6.95.
石的存在降低了液中的Cd和Mn度.
用氨基修饰的焦化进一步提高了金属物种的减少28-68%.

结论:

天然化石 (clinoptilolite) 是一个可行的选择,可以减轻矿山尾矿中PTE浸出.
石提高土壤pH值的能力有助于PTE固定.
进一步的研究可以优化热带石的应用,用于矿场整治.

关键词:

泄漏率泄漏率泄漏率泄漏率矿山尾矿是矿山的尾矿.包装的列包装的列有毒元素有毒元素泽奥利特 (Zeolite) 是一种克林诺皮托利特 (clinoptilolite) 石.

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