Repurposing mine tailings: Cold bonding of siliceous iron ore tailings

2016 ◽  
Vol 33 (1) ◽  
pp. 47-52 ◽  
Author(s):  
J.E.D. McDonald ◽  
S.C. Roache ◽  
S.K. Kawatra
Keyword(s):  
Mine Tailings ◽  
Iron Ore ◽  
Iron Ore Tailings ◽  
Cold Bonding

Utilization of Iron Ore Tailings for the Production of Fly Ash — GGBS-Based Geopolymer Bricks

2017 ◽  
Vol 16 (03) ◽  
pp. 275-290
Author(s):  
Raghunandan Kumar ◽  
Pranab Das ◽  
M. Beulah ◽  
H. R. Arjun ◽  
George Ignatius
Keyword(s):  
Fly Ash ◽  
Mine Tailings ◽  
Blast Furnace Slag ◽  
Iron Ore ◽  
Natural Sand ◽  
Granulated Blast Furnace Slag ◽  
Iron Ore Tailings ◽  
Silica Alumina ◽  
Furnace Slag ◽  
Geopolymer Binder

In India, million tons of manufacturing ravages such as ground-granulated blast furnace slag (GGBS), fly ash and mine tailings, are endangering. These ravages turn out to be injurious as they are landfilled close to the production sites and somewhere else. Since these manufacturing ravages include silica, alumina, calcium, etc., it is probable to formulate these as unprocessed resources to produce building substance which diminishes the carbon trace. In this circumstance, this analysis observes on utilizing iron ore tailings and slag sand as a substitution for clay or natural sand for the construction of steady geopolymer obstruct. Furthermore, in this analysis, geopolymer is utilized as a binder rather than cement. Expansion of geopolymer binder-oriented bricks with fly ash and GGBS has been implemented in this study. The analysis consists of automatic possessions of the geopolymer bricks. Sodium silicate ([Formula: see text]) and sodium hydroxide (NaOH) resolution have been employed as alkaline activators. The proportion of alkaline liquid to aluminosilicate solid quotient and fraction of binder encompass foremost control on the force of brick. The bricks were casted and cured at ambient warmth. The compressive strength was tested at 7, 14 and 28 days.

Effects of reductant type on coal-based direct reduction of iron ore tailings

2018 ◽  
Vol 42 (3) ◽  
pp. 453-466
Author(s):  
Wei WANG ◽  
Pengfei YE ◽  
Xiaoli ZHOU ◽  
C WANG ◽  
Zekun HUO ◽  
...  
Keyword(s):  
Iron Ore ◽  
Direct Reduction ◽  
Iron Ore Tailings ◽  
Reduction Of Iron ◽  
Direct Reduction Of Iron

Iron ore tailings as a source of nutrients to the coastal zone

2021 ◽  
Vol 171 ◽  
pp. 112725
Author(s):  
Eduardo Schettini Costa ◽  
Renata Caiado Cagnin ◽  
Cesar Alexandro da Silva ◽  
Cybelle Menolli Longhini ◽  
Fabian Sá ◽  
...  
Keyword(s):  
Coastal Zone ◽  
Iron Ore ◽  
Iron Ore Tailings

On the effects of iron ore tailings micro/nanoparticles in embryonic and larval zebrafish (Danio rerio)

2021 ◽  
Vol 759 ◽  
pp. 143456
Author(s):  
Vítor Otacílio de Almeida ◽  
Talita Carneiro Brandão Pereira ◽  
Lilian de Souza Teodoro ◽  
Manuella Escobar ◽  
Carolina Junqueira Ordovás ◽  
...  
Keyword(s):  
Danio Rerio ◽  
Iron Ore ◽  
Larval Zebrafish ◽  
Iron Ore Tailings

Productivity and food safety of grain crops and forage species grown in iron ore tailings

2021 ◽  
pp. 104198
Author(s):  
Humberto Araújo Almeida ◽  
Janaína Guernica Silva ◽  
Isabela Goulart Custódio ◽  
Decio Karam ◽  
Queila Souza Garcia
Keyword(s):  
Food Safety ◽  
Iron Ore ◽  
Grain Crops ◽  
Iron Ore Tailings ◽  
Forage Species

scholarly journals Iron ore tailings in the production of cement tiles: a value analysis on building sustainability

2018 ◽  
Vol 18 (4) ◽  
pp. 395-412 ◽  
Author(s):  
Wanna Carvalho Fontes ◽  
Giovanni Gonçalves Fontes ◽  
Ellen Cristine Pinto Costa ◽  
Julia Castro Mendes ◽  
Guilherme Jorge Brigolini Silva ◽  
...  
Keyword(s):  
Iron Ore ◽  
Construction Material ◽  
Local Identity ◽  
Value Analysis ◽  
Social And Emotional ◽  
A Value ◽  
Iron Ore Tailings ◽  
Dissolution Tests ◽  
Technical Evaluation ◽  
The Relationship

Abstract The present work discloses the development of a sustainable cement tile (SCT) produced with Iron Ore Tailings from tailings dams (IOT). Initially, technical evaluation and environmental analysis of IOT were performed through physical, chemical and morphological characterisation, leaching and dissolution tests. Its feasibility as a pigment was also investigated. Subsequently, the value analysis was performed, starting from an empathy map to a study on environmental, social and emotional values in the relationship between people and product. As result, the IOT presented fine, crystalline particles, no toxicity, and is technically feasible to be employed as filler, aggregate and pigment in the production of SCT. The colour layer of the SCT presented more homogeneous colour and less pores than conventional ones. Therefore, the design of the SCT was developed, incorporating intangible values such as: environmental ideology, local identity and social expression. In this sense, the present work seeks to assist in the decision-making process involving IOT as construction material.

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