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Utilization potential of mine tailings in geopolymers: Part 1. Physicochemical and environmental aspects
Process Safety and Environmental Protection ( IF 6.9 ) Pub Date : 2021-01-02 , DOI: 10.1016/j.psep.2020.12.028
Georgy Lazorenko , Anton Kasprzhitskii , Faiz Shaikh , R.S Krishna , Jyotirmoy Mishra

The mining industry produces a large amount of mine waste rock and tailings, which pose a severe threat to the environment. The most common way for the disposal of these industrial wastes is dumping at sites, which contributes to soil degradation and water pollution, and also covers the useful land. Recycling of mine tailings (MTs) in raw material - intensive applications presents a good alternative to manage the waste generated from mining and mineral processing industries. The geopolymer technology provides a green solution to the utilization of MTs, avoiding its negative environmental impacts. This paper is the first part of the review which summarizes the physicochemical and environmental aspects of different types of MTs, as well as the technological aspects of the preparation of geopolymers (GPs) based on them. The work scrutinizes potential environmental and socio-economic risks of the mining industry associated with the accumulation of tailings. The issues of MTs toxicity that should be taken into account when developing methods for disposal of tailings in geopolymers are touched upon. The features of the chemical and mineral composition of tailings used in geopolymers, as well as their physical properties, are systematized and scrutinized. Methods of utilizing MTs as precursors of GPs or aggregates described in the scientific literature, as well as general patterns of the geopolymerization process are discussed. Finally, the key issues in this area that require additional research are highlighted.



中文翻译:

地聚合物中矿山尾矿的利用潜力:第1部分。物理化学和环境方面

采矿业生产大量矿山废石和尾矿,对环境构成严重威胁。处理这些工业废物的最常见方式是将其倾倒在场地上,这会导致土壤退化和水污染,并覆盖有用的土地。回收原料中的矿山尾矿(MTs)-密集型应用是管理采矿和矿物加工行业产生的废物的不错选择。地质聚合物技术为MT的利用提供了绿色解决方案,避免了其对环境的负面影响。本文是本综述的第一部分,概述了不同类型MT的理化和环境方面,以及基于它们制备地聚物(GP)的技术方面。这项工作仔细研究了与尾矿积累相关的采矿业潜在的环境和社会经济风险。涉及开发用于处理地质聚合物中尾矿的方法时应考虑的MT毒性问题。系统化和审查了用于地质聚合物中的尾矿的化学和矿物组成特征及其物理性质。讨论了利用MT作为科学文献中描述的GP或聚集体的前体的方法,以及地聚过程的一般模式。最后,重点介绍了该领域中需要进一步研究的关键问题。涉及开发用于处理地质聚合物中尾矿的方法时应考虑的MT毒性问题。系统化和审查了用于地质聚合物中的尾矿的化学和矿物组成特征及其物理性质。讨论了利用MT作为科学文献中描述的GP或聚集体的前体的方法,以及地聚过程的一般模式。最后,重点介绍了该领域中需要进一步研究的关键问题。涉及开发用于处理地质聚合物中尾矿的方法时应考虑的MT毒性问题。系统化和审查了用于地质聚合物中的尾矿的化学和矿物组成特征及其物理性质。讨论了利用MT作为科学文献中描述的GP或聚集体的前体的方法,以及地聚过程的一般模式。最后,重点介绍了该领域中需要进一步研究的关键问题。讨论了利用MT作为科学文献中描述的GP或聚集体的前体的方法,以及地聚过程的一般模式。最后,重点介绍了该领域中需要进一步研究的关键问题。讨论了利用MT作为科学文献中描述的GP或聚集体的前体的方法,以及地聚过程的一般模式。最后,重点介绍了该领域中需要进一步研究的关键问题。

更新日期:2021-01-02
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