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This research reviews the latest data available in the literature with a focus on: (i) sources from which these types of iron-based wastes originate; (ii) the types of ferrous compounds that result from different industries; (iii) the different methods (with respect to the circular economy) used to convert them into products applied in water and wastewater decontamination; (iv) the harmful effects ferrous wastes can have on the environment and human health; and (v) the future perspectives for these types of waste.<\/jats:p>","DOI":"10.3390\/ijerph192113951","type":"journal-article","created":{"date-parts":[[2022,10,27]],"date-time":"2022-10-27T20:37:58Z","timestamp":1666903078000},"page":"13951","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["Ferrous Industrial Wastes\u2014Valuable Resources for Water and Wastewater Decontamination"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8672-9078","authenticated-orcid":false,"given":"Ecaterina","family":"Matei","sequence":"first","affiliation":[{"name":"Faculty of Materials Sciences and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andra Mihaela","family":"Predescu","sequence":"additional","affiliation":[{"name":"Faculty of Materials Sciences and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anca Andreea","family":"\u0218\u0103ulean","sequence":"additional","affiliation":[{"name":"Faculty of Materials Sciences and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7359-5736","authenticated-orcid":false,"given":"Maria","family":"R\u00e2p\u0103","sequence":"additional","affiliation":[{"name":"Faculty of Materials Sciences and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3266-3178","authenticated-orcid":false,"given":"Mirela Gabriela","family":"Sohaciu","sequence":"additional","affiliation":[{"name":"Faculty of Materials Sciences and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"George","family":"Coman","sequence":"additional","affiliation":[{"name":"Faculty of Materials Sciences and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrei-Constantin","family":"Berbecaru","sequence":"additional","affiliation":[{"name":"Faculty of Materials Sciences and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cristian","family":"Predescu","sequence":"additional","affiliation":[{"name":"Faculty of Materials Sciences and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dumitru","family":"V\u00e2ju","sequence":"additional","affiliation":[{"name":"ICPE Bistrita, 7 Parcului Street, 420035 Bistrita, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Grigore","family":"Vlad","sequence":"additional","affiliation":[{"name":"ICPE Bistrita, 7 Parcului Street, 420035 Bistrita, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,10,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Vilarinho, I.S., Lopes, A.L., Carneiro, J., Pinto, C., Labrincha, J.A., and Seabra, M.P. 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