Comprehensive Assessment of Environmental Behavior of Mine Tailings for Sustainable Waste Management and Mitigation of Pollution Risks DOI Open Access

M’hamed Koucham,

Abdessamad Khalil,

Lahcen Mouhagir

et al.

Water, Journal Year: 2024, Volume and Issue: 17(1), P. 43 - 43

Published: Dec. 27, 2024

The substantial volumes of tailings produced during ore beneficiation present significant challenges for sustainable management due to potential public health hazards, particularly from metal leaching. risk associated with varies greatly depending on their mineralogical composition and climatic conditions. If are classified as a non-hazardous by-product, they may serve secondary raw materials, offering alternative the reliance non-renewable primary resources. In this study, recycling feasibility an active copper mine was assessed through characterization, environmental tests (e.g., static, kinetic, leaching tests), geochemical modeling. This multi-faceted approach aimed predict behavior reactivity under varying Results static indicated that were non-acid generating. Weathering cell revealed circumneutral pH conditions (6.5–7.8), low sulfide oxidation rates, instantaneous concentrations (<1 mg/L), except (0.6–3.5 mg/L) iron (0.4–1.4 mg/L). These attributed abundance minerals, such pyrite, chalcopyrite, bornite, covellite (<0.1 wt.%), chalcocite (0.2 which effectively encapsulated within gangue minerals. Additionally, presence neutralizing specifically dolomite (27.4 wt.%) calcite (2.4 further stabilizes promotes sequestration in mineral forms. Toxicity Characteristic Leaching Procedure (TCLP) test confirmed leachability, classifying non-hazardous.

Language: Английский

Compressive strength, microstructure, and applications of low-CO2 hybrid alkaline cements DOI

Rubi M. Morales-Lopez,

L. Y. Gómez-Zamorano,

MA Avila-Rubio

et al.

MRS Advances, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

Language: Английский

Citations

0
Promoting a Circular Economy in Mining Practices DOI Open Access

Subin Antony Jose,

Joy Calhoun,

Otoniel B. Renteria

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(24), P. 11016 - 11016

Published: Dec. 16, 2024

Integrating circular economy (CE) principles into mining practices offers a promising path toward reducing environmental harm while promoting sustainable resource management. This shift boosts the industry’s efficiency and profitability aligns it with global sustainability goals. paper delves strategies for closing material loops, such as waste valorization, recovery from mine tailings, water reuse in processes. Additionally, this study highlights innovative technologies their potential to transform traditional linear sustainable, systems. emphasizes importance of strong collaboration among industry stakeholders policymakers, including companies, researchers, local communities, implementation CE principles. also discusses role emerging digital tools, automation, artificial intelligence advancing improving operational efficiency. By exploring economic, environmental, social benefits CE, demonstrates how these can contribute mining. It addresses key challenges, technological, regulatory hurdles, recommendations overcoming them pave way more resilient industry.

Language: Английский

Citations

3
Response Surface Design Models to Predict the Strength of Iron Tailings Stabilized with an Alkali-Activated Cement DOI Creative Commons

Isabela Caetano,

Sara Rı́os, Paula Milheiro–Oliveira

et al.

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(18), P. 8116 - 8116

Published: Sept. 10, 2024

Tailing storage facilities are very complex structures whose failure generally leads to catastrophic consequences in terms of casualties, serious environmental impacts on local biodiversity, and disruptions the mineral supply. For this reason, at risk must be reinforced or decommissioned. One possible option is its reinforcement with compacted filtered tailings stabilized binders. Alkali-activated binders provide a more sustainable solution than ordinary Portland cement but require an optimization tailing–binder mixture, which, some cases, can lead substantial experimental effort. Statistical models have been used reduce number those experiments, rational design methodology still lacking. This define right mixture for required strength should consider both components situ conditions. In paper, response surface methods were plan interpret unconfined compression test results iron tailing alkali-activated It was concluded that fly ash content most important parameter, followed by liquid sodium hydroxide concentration. From obtained results, several statistical defined compared according definition prediction model based index parameter. interesting observe porosity reasonable adjustment even when different tailings’ water contents considered.

Language: Английский

Citations

1
Comprehensive Assessment of Environmental Behavior of Mine Tailings for Sustainable Waste Management and Mitigation of Pollution Risks DOI Open Access

M’hamed Koucham,

Abdessamad Khalil,

Lahcen Mouhagir

et al.

Water, Journal Year: 2024, Volume and Issue: 17(1), P. 43 - 43

Published: Dec. 27, 2024

The substantial volumes of tailings produced during ore beneficiation present significant challenges for sustainable management due to potential public health hazards, particularly from metal leaching. risk associated with varies greatly depending on their mineralogical composition and climatic conditions. If are classified as a non-hazardous by-product, they may serve secondary raw materials, offering alternative the reliance non-renewable primary resources. In this study, recycling feasibility an active copper mine was assessed through characterization, environmental tests (e.g., static, kinetic, leaching tests), geochemical modeling. This multi-faceted approach aimed predict behavior reactivity under varying Results static indicated that were non-acid generating. Weathering cell revealed circumneutral pH conditions (6.5–7.8), low sulfide oxidation rates, instantaneous concentrations (<1 mg/L), except (0.6–3.5 mg/L) iron (0.4–1.4 mg/L). These attributed abundance minerals, such pyrite, chalcopyrite, bornite, covellite (<0.1 wt.%), chalcocite (0.2 which effectively encapsulated within gangue minerals. Additionally, presence neutralizing specifically dolomite (27.4 wt.%) calcite (2.4 further stabilizes promotes sequestration in mineral forms. Toxicity Characteristic Leaching Procedure (TCLP) test confirmed leachability, classifying non-hazardous.

Language: Английский

Citations

0