Mobility of rare earth elements in mine drainage: Influence of iron oxides, carbonates, and phosphates

Edahbi, Mohamed; Plante, Benoît; Benzaazoua, Mostafa; Ward, Matthew J.; Pelletier, Mia

doi:10.1016/j.chemosphere.2018.02.054

Cited by 35 publications

(8 citation statements)

References 30 publications

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“…REE behavior in acid mine water depends on several parameters, such as the influence of iron oxides (Edahbi et al, 2018b;Verplanck et al, 2004), presence of aluminum, fluorine, sulfate, phosphate and temperature (Gimeno Serrano , 2000), organic matter content (Edahbi et al, 2019) and redox potential. The highly acidic pH of acid mine water also influences the solubility of REE and determines their fate after their release into surface and ground waters (Ayora et al, 2016;Cravotta, 2008).…”

Section: Conventional Methods For Recovery Of Reementioning

confidence: 99%

Environmental Technologies to Treat Rare Earth Element Pollution: Principles and Engineering

2022

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Rare earth elements (REE) have applications in various modern technologies, e.g., semiconductors, mobile phones, magnets. They are categorized as critical raw materials due to their strategic importance in economies and high risks associated with their supply chain. Therefore, more sustainable practices for efficient extraction and recovery of REE from secondary sources are being developed. This book, Environmental Technologies to Treat Rare Earth Elements Pollution: Principles and Engineering: presents the fundamentals of the (bio)geochemical cycles of rare earth elements and which imbalances in these cycles result in pollution.overviews physical, chemical and biological technologies for successful treatment of water, air, soils and sediments contaminated with different rare earth elements.explores the recovery of value-added products from waste streams laden with rare earth elements, including nanoparticles and quantum dots. This book is suited for teaching and research purposes as well as professional reference for those working on rare earth elements. In addition, the information provided in this book is helpful to scientists, researchers and practitioners in related fields, such as those working on metal/metalloid microbe interaction and sustainable green approaches for resource recovery from wastes. ISBN: 9781789062229 (Paperback) ISBN: 9781789062236 (eBook) ISBN: 9781789062243 (ePUB)

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Section: Conventional Methods For Recovery Of Reementioning

confidence: 99%

Environmental Technologies to Treat Rare Earth Element Pollution: Principles and Engineering

2022

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“…Indeed, they are found in many ARD cases [142,143] but most REE deposits are within geological settings that are not prone to ARD generation, such as pegmatites, carbonatites, and peralkaline igneous deposits, as well as within placers and clays ( [144] and references therein). Upon their release in near-neutral mine waters, REE concentrations are mostly controlled by secondary precipitation and sorption phenomena (Section 2.4) [145][146][147][148]. However, significant knowledge gaps remain as to the fate of REE released from mine wastes.…”

Section: The Geochemistry Of Neutral Drainagementioning

confidence: 99%

Mine Waste Rock: Insights for Sustainable Hydrogeochemical Management

et al. 2020

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Mismanagement of mine waste rock can mobilize acidity, metal (loid)s, and other contaminants, and thereby negatively affect downstream environments. Hence, strategic long-term planning is required to prevent and mitigate deleterious environmental impacts. Technical frameworks to support waste-rock management have existed for decades and typically combine static and kinetic testing, field-scale experiments, and sometimes reactive-transport models. Yet, the design and implementation of robust long-term solutions remains challenging to date, due to site-specificity in the generated waste rock and local weathering conditions, physicochemical heterogeneity in large-scale systems, and the intricate coupling between chemical kinetics and mass- and heat-transfer processes. This work reviews recent advances in our understanding of the hydrogeochemical behavior of mine waste rock, including improved laboratory testing procedures, innovative analytical techniques, multi-scale field investigations, and reactive-transport modeling. Remaining knowledge-gaps pertaining to the processes involved in mine waste weathering and their parameterization are identified. Practical and sustainable waste-rock management decisions can to a large extent be informed by evidence-based simplification of complex waste-rock systems and through targeted quantification of a limited number of physicochemical parameters. Future research on the key (bio)geochemical processes and transport dynamics in waste-rock piles is essential to further optimize management and minimize potential negative environmental impacts.

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“…In fact, several recent studies examining material and metal demand for supplying clean and hi-tech technologies report that these technologies will result in considerably more material-intensive demand than traditional fossil fuel mechanisms and non-hi-tech elements (Rare Earth Elements-REE, Co, Te, Se, Nd, In, Ga) [2,3]. Currently the commodities considered "critical" for EU economy are mainly constituted by REE [4][5][6][7][8] and base and precious metals such as copper, lithium, aluminum, silver, steel, nickel, lead, and zinc [9]. The supply of these CRM is highly connected to international geopolitics strategies and global market conditions as most of the CRM are exploited in non-EU countries (Table 1), therefore causing high economic dependence for the EU.…”

Section: General Background and Targets Of The Present Researchmentioning

confidence: 99%

Towards Sustainable Mining: Exploiting Raw Materials from Extractive Waste Facilities

et al. 2020

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The focus of the present research is on the exploitation of extractive waste to recover raw materials, considering the technological and economic factors, together with the environmental impacts, associated with extractive waste quarrying and dressing activities. The present study, based on a case history from Northern Italy (Montorfano and Baveno granite quarrying area), was intended to validate the presented interdisciplinary approach for evaluating economic and environmental impacts associated with extractive waste facility exploitation (from granite waste to products for the ceramic industry and by-products for the building industry). A shared methodology was applied to determine extractive waste characteristics (geochemistry, petrography, and mineralogy), waste volume (geophysical, topographic, and morphologic 3D characterization) and potential exploitable products and by-products. Meanwhile, a Life Cycle Assessment (LCA) was applied to determine the environmental impacts associated with the extraction and processing phases.

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Mobility of rare earth elements in mine drainage: Influence of iron oxides, carbonates, and phosphates

Cited by 35 publications

References 30 publications

Environmental Technologies to Treat Rare Earth Element Pollution: Principles and Engineering

Environmental Technologies to Treat Rare Earth Element Pollution: Principles and Engineering

Mine Waste Rock: Insights for Sustainable Hydrogeochemical Management

Towards Sustainable Mining: Exploiting Raw Materials from Extractive Waste Facilities

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