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- Title
Tailings from Fundão Tragedy: Physical–Chemical Properties of the Material That Remains by Candonga Dam.
- Authors
Figueiredo, Marina Duarte; Lameiras, Fernando Soares; Ardisson, José Domingos; Araujo, Maria Helena; Teixeira, Ana Paula de Carvalho
- Abstract
In this work, samples of Fe mining tailings from the collapsed Fundão Dam, Brazil, which were retained by the Candonga hydroelectric power plant, were characterized by various techniques. Quartz, hematite, kaolinite, and goethite were identified as the main phases present. The composition, homogeneity, and relatively low (~1%) organic matter content indicate potential for usage of these tailings in civil constructions. The next step of this work is to investigate such applications. If their feasibility is confirmed, the goal is to use this material for construction in the areas affected by the Fundão Dam rupture. This use will lead to positive socio‐environmental impacts in these regions, where tailings still need to be removed and damaged infrastructure needs to be repaired. Integr Environ Assess Manag 2020;16:636–642. © 2019 SETAC KEY POINTS: Our study characterizes Fe tailings deposited near the Candonga hydroelectric power plant dam, in Doce River (Minas Gerais, Brazil).The material analyzed presents good homogeneity and its main phases are quartz, hematite, kaolinite, and goethite.The tailings are classified as nondangerous, noninert, noncorrosive, and nonreactive.The results indicate potential for usage of tailings in cement‐based materials for civil construction.
- Subjects
BRAZIL; GOETHITE; KAOLINITE; HYDROELECTRIC power plants; MECHANICAL properties of condensed matter; QUARTZ; DAM maintenance &; repair; CONSTRUCTION materials
- Publication
Integrated Environmental Assessment & Management, 2020, Vol 16, Issue 5, p636
- ISSN
1551-3777
- Publication type
Article
- DOI
10.1002/ieam.4227