沉积式矿回收中的循环经济战略:从废岩石中开发技术盐

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Updated: Jun 11, 2025

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Published on: February 21, 2017

Malak Elmeknassi¹, Abdellatif Elghali¹, Ahmed Laamrani²

¹Geology & Sustainable Mining Institute (GSMI), University Mohammed VI Polytechnic, Lot 660, Hay Moulay Rachid, Ben Guerir, 43150, Morocco.

Journal of environmental management

|October 2, 2024

概括

这项研究分析了矿废弃物中的技术盐,发现土壤结构差,水度低. 提供了改善矿山恢复策略的建议,重点是恢复前的土壤管理.

科学领域:

环境科学环境科学
土壤科学土壤科学
地质化学地质化学

背景情况:

有效的矿山废物管理对于环境保护至关重要.
将矿山废物岩石转化为技术盐是矿山恢复的一个关键策略.
矿废弃物填埋场对土壤开发和恢复构成独特的挑战.

研究的目的:

从矿废弃物中提取的技术盐的矿物学,化学和物理特性.
评估这些技术盐对于作物生长和矿山恢复的适用性.
为矿工地提出一个新的,具有成本效益的康复战略.

主要方法:

从4公的土地上系统地采集了32个technosol样本.
使用自动化矿物学分析矿物学成分.
化学分析包括主要和次要元素的X射线光 (XRF).
评估物理性质,如纹理,结构和保持水分.
评估元素的生物可用性和土壤有机物含量.

主要成果:

技术盐表现出沙质纹理,结构退化,稳定性差,保持水分低,不适合作物生长.
主要的矿物包括石英,多洛米特,石,阿帕提特和粘土矿物,含量高的CaO和SiO2.
土壤富含Ca,Mg,Zn和Cu,但有机物质 (SOC<0.2%,N<0.02%) 和P,K,S,Mn和Fe等必需营养素严重缺乏.

结论:

矿废弃物衍生技术盐需要进行重大修改,以支持植被和恢复.
在地形重塑之前实施的拟议的恢复策略可以降低成本并改善土壤复合.
集成自动化矿物学和循环经济原则可以增强矿山恢复实践.

关键词:

循环经济是一个循环经济.矿山康复矿山康复酸盐矿山废弃物岩石的废弃物土壤表征土壤的表征.技术的生育能力技术的生育能力

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