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ENVIRONMENTAL IMPACT OF EXTRACTION OF REE FROM MINING WASTE AND TAILINGS - SCREENING STAGE
Abstract
Rare earth elements (REE) are strategic resources, with an elevated risk of supply instability. Significant price fluctuations related to monopoly in REE mining and production increase interest in alternative sources of acquisition. Substantial growth in demand for REE in the next decade is projected. As a potential alternative sources of REE is considered recycling of electronic waste and the processing of ashes from the incineration of municipal waste. Also the reprocessing of mining waste, both from current production and old tailings, can be an important source to supplement the REE resources in the market. The article considers screening stage of environmental impact assessment of the REE extraction from old mine waste and tailings. Based on the box model of REE ore dressing and enrichment, the nature of the dominant negative impacts on the environment was indicated. Risks and benefits of acquiring REE from mining tailings (SWOT) and technological installations and processing steps relevant to the life cycle analysis are evaluated.
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