The Electrokinetic In-Situ Leaching (EK-ISL) technique emerged as a novel technique in the mining and mineral processing industry which combines the in-situ leaching (ISL) and electrokinetics (EK). ISL, recognized as a sustainable and cost-effective approach, ensures selective metal dissolution without excavation while reducing the environmental impact of conventional mining. EK is driven by a low-voltage direct current and it accelerates metal ion transportation within the subsurface where it offers a sustainable solution for metal recovery from unconventional deposits. Several studies validate the effectiveness of the EK-ISL in recovering critical elements such as rare earth elements (REEs), beryllium (Be), chromium (Cr), and vanadium (V). In this paper, we examine the influence of key variables and effective parameters such as voltage gradient, ionic lixiviant concentration, pH level, electrode configuration, permeability of the medium, particle size distribution, concentration of electrolyte, and current density on the efficiency and effectiveness of the EK-ISL process. It poses a practical applicability for small-scale, artisanal, and industrial applications. In addition, EK-ISL exhibits scalability, achieving higher recovery rates in scaled-up experiments. Despite its promising potential, EK-ISL is associated with enduring challenges such as limited scientific understanding, ore particle size issues, and potential barriers to industrial-scale copper extraction. Moreover, EK-ISL showcases favorable economic considerations highlighting reduced operation costs and resource utilization. This paper also draws attention to EK-ISL’s environmental benefits, reduced leaching agent requirements, and uniform solute migration. Future perspectives reveal the necessity of in-depth studies, scalability optimization, and addressing challenges for widespread adoption.

中文翻译：

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高效关键金属提取电动工艺的进步：揭示电动原位浸出 (EK-ISL) 在采矿和矿物加工中的潜力


动电原位浸出（EK-ISL）技术是采矿和选矿行业中的一项新技术，它结合了原位浸出（ISL）和动电学（EK）。 ISL 被认为是一种可持续且具有成本效益的方法，可确保在不开挖的情况下选择性地溶解金属，同时减少传统采矿对环境的影响。 EK 由低压直流电驱动，可加速地下金属离子的传输，为从非常规矿床中回收金属提供可持续的解决方案。多项研究验证了 EK-ISL 在回收稀土元素 (REE)、铍 (Be)、铬 (Cr) 和钒 (V) 等关键元素方面的有效性。在本文中，我们研究了电压梯度、离子浸滤剂浓度、pH 水平、电极配置、介质渗透性、粒度分布、电解质浓度和电流密度等关键变量和有效参数对效率和有效性的影响。 EK-ISL 流程。它为小规模、手工和工业应用提供了实际适用性。此外，EK-ISL 具有可扩展性，可在放大实验中实现更高的回收率。尽管 EK-ISL 潜力巨大，但它也面临着持久的挑战，例如科学认识有限、矿石粒度问题以及工业规模铜提取的潜在障碍。此外，EK-ISL 展示了有利的经济考虑，强调降低运营成本和资源利用率。本文还提请人们关注 EK-ISL 的环境效益、减少浸出剂的需求以及均匀的溶质迁移。 未来的前景揭示了深入研究、可扩展性优化和解决广泛采用的挑战的必要性。