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In addition, outcomes from such characterization may define the scope for a more detailed investigation. The present work describes the characterization of the waste material from the Cabe\u00e7o do Pi\u00e3o tailings impoundment performed within the project ReMinE: Improve Resource Efficiency and Minimize Environmental Footprint. The purpose of the work was to investigate alternative mine waste management options such as the extraction of valuable resources from an environmental liability. The study involved the collection of 41 samples at different locations at two different depths, physical and chemical characterization of the wastes, natural leaching tests, and potential for acid generation. The results showed that, apart from the potential instability of the dyke (with an average slope of 35\u00b0), the drained solutions flowing by percolation contain very small particles with high arsenic contents that are being incorporated into the river sediments. In addition, these very fine-grained materials are available for the transport by the wind creating secondary sources of environmental contamination. This data is fundamental for economic and environmental assessment of the two main alternatives, reprocessing or removal.<\/jats:p>","DOI":"10.1007\/s11356-019-06987-x","type":"journal-article","created":{"date-parts":[[2020,1,23]],"date-time":"2020-01-23T20:02:32Z","timestamp":1579809752000},"page":"10103-10114","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":24,"title":["Characterization of a mine legacy site: an approach for environmental management and metals recovery"],"prefix":"10.1007","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4774-2533","authenticated-orcid":false,"given":"Maria de Lurdes","family":"Dinis","sequence":"first","affiliation":[]},{"given":"Ant\u00f3nio","family":"Fi\u00faza","sequence":"additional","affiliation":[]},{"given":"Aurora","family":"Futuro","sequence":"additional","affiliation":[]},{"given":"Alexandre","family":"Leite","sequence":"additional","affiliation":[]},{"given":"Diogo","family":"Martins","sequence":"additional","affiliation":[]},{"given":"Janine","family":"Figueiredo","sequence":"additional","affiliation":[]},{"given":"Joaquim","family":"G\u00f3is","sequence":"additional","affiliation":[]},{"given":"Maria Cristina","family":"Vila","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2020,1,23]]},"reference":[{"key":"6987_CR1","unstructured":"Albuquerque MTD, Antunes M, Dinis ML, Futuro A, G\u00f3is J, Leite A, Vila MC, Figueiredo J, Fi\u00faza A (2017) Improving resource efficiency and minimize environmental footprint \u2013 a case study preliminary results, Proceedings of the IMWA 2017 \u2013 Mine Water & Circular Economy, Lappeenranta, Finland, ISBN 978\u2013952\u2013335-065-6, 2017"},{"issue":"3","key":"6987_CR2","doi-asserted-by":"publisher","first-page":"210","DOI":"10.1007\/s10230-008-0046-4","volume":"27","author":"P \u00c1vila","year":"2008","unstructured":"\u00c1vila P, Ferreira da Silva E, Salgueiro A, Farinha JA (2008) Geochemistry and mineralogy of mill tailings impoundments from the Panasqueira mine (Portugal): implications for the surrounding environment. 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