Cerrejon claim to be the largest open cast coal mine in the world. dusty landscape, with piles of rock waste from the mines in the area, which Fossil … view more Cerrejon Coal Mine Waste Rock.

Multiple National Contact Points (NCPs) of the Organisation for Economic Co-operation and Development (OECD) will begin the process of investigating three international mining giants (BHP, Anglo American and Glencore) and Ireland's state-owned energy provider, the ESB, over serious human rights abuses and devastating …

Recycling wastes to renewable resources with proper methods deserve world's extensive efforts. In this work, antimony mining waste rocks from the industrial mining process contenting hazard metals are incorporated as substitutes for aggregate to produce cement mortars and concrete products. The stabilization behaviors of hazard …

The Cerrejon mine was a joint venture between Anglo American, BHP Billiton and Glencore located in Colombia's La Guajira Department. In January 2022, …

Coal mine waste rock (CMWR) generated in coal mining activities is one of the most significant sources of industrial solid waste. Nearly 4.5 billion tons of CMWR stockpiled in more than 1700 waste dumps occupying 150 km 2 of land worldwide ( Bian et al., 2009; Zhao et al., 2008 ).

Characterisation of mine waste rock with respect to acid generation potential is a necessary part of routine mine operations, so that environmentally benign waste rock stacks can be constructed for permanent storage. Standard static characterisation techniques, such as acid neutralisation capacity (ANC), maximum …

Glencore has completed the acquisition of the 66.6% stake in the Cerrejon coal mine in Colombia from joint venture (JV) partners BHP and Anglo American. BHP and Anglo American each held a stake of 33.3% in the open-cut mine, which is located in the La Guajira province. Originally, Glencore agreed to acquire their respective stakes in June …

Glencore has signed an agreement to acquire full ownership of the Cerrejon coal mine in Colombia from BHP and Anglo American, for $588m.

Vegetation can potentially assist in limiting the ingress of water into rock dumps or tailings storage facilities, an attractive potential when the geochemical characteristics of such waste materials indicate that water ingress should be minimal in order to reduce long-term impacts and liabilities. However, the presence and/or necessity for vegetation can present …

The communities who live near the mine are some of Colombia's poorest. For nearly forty years, they have been inhaling poisonous dust from the mine; their water contaminated by the toxic …

Cerrejón reactivates operations at the mine. After implementing the necessary measures and protocols to reduce the risk of infection of COVID-19 and ensure the health and safety of our workers, their families, and the communities, Cerrejón has today gradually restarted operations. In view of the crisis caused by COVID-19, Cerrejón has ...

Soil near waste rock often contains high concentrations of antimony (Sb), but the mechanisms that mobilize Sb in a soil closely impacted by the waste rock piles are not well understood. We investigated these mobility mechanisms in soils near historical waste rock at the world's largest Sb mine.

Globally, drainage from sulfide-bearing waste-rock piles, containing high concentrations of toxic metal (loid)s, can severely degrade surrounding ecosystems. Waste-rock piles are typically deposited as unsaturated porous media. The complex physical and chemical heterogeneity of waste rock poses significant challenges to the evaluation of …

The Cerrejon coal mineis located in the department of La Guajira in Colombia. The mining concession covers an area of approximately 69,000ha, spanning over the municipalities of Albania, and Barrancas y Hatonuevo. The coal mine lies within the El Cerrejon sub-basin which is dominated by deltaic rocks of the Paleogene-a…

There are very few published works concerning the use of geophysical methods for the characterization of mine rock waste piles. Most report the use of electrical resistivity for imaging acid leachate plumes (Campbell et al., 1999, Campbell and Fitterman, 2000, Smith et al., 2001).

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In China, coal mine waste rock (CMWR) produced during coal mining and processing is still increasing significantly as a result of coal production which has huge environmental impact.

The waste-rock pile, constructed by end-dumping, contained particles ranging from clay sized to boulders larger than 1 m. Stockwell et al. (2006) observed alternating and intermixed coarse and fine lenses, approximately 1–3 m thick, dipping at the angle of repose, and a coarse rubble zone at the base of the pile.

Phosphate rock is extracted from open-pit and underground mines, depending on the geological and morphological properties of the phosphate ore. Generally, the extraction from open-pit mines generates dust emissions and produces large quantities of mine waste with 1–12 tons of waste extracted per 1 ton of phosphate ore ( Taha et …

Photo Ynske Boersma El Cerrejón is among the world's largest coal mines. Communities in La Guajira, one of Colombia's poorest provinces, say mining activities are polluting their water and harming …

A distinct advantage of using waste rock for value-added applications is that the cost of mining is incorporated into the traditional mine plan. In most cases, waste rock mining is part of the mining process and sophisticated planning and scheduling techniques determine its volume.

The Cerrejon coal mine is located in the department of La Guajira in Colombia. The mining concession covers an area of approximately 69,000ha, spanning …

Solutions from oxidized waste rock originating from an acid-leached waste dump were studied. The dissolution data suggest that after the majority of the soluble solid phases are removed, remaining solid phases continued to buffer the solutions in the acidic pH range. Incorporating the solution data into MINTEQA2 identified controls on the solubility of Al, …

Trabaja con nosotros. En Cerrejón estamos comprometidos con asegurar la igualdad de oportunidades para aquellos que deseen aplicar a nuestras ofertas laborales según los perfiles requeridos. Generamos un ambiente de trabajo libre de discriminación, en donde los miembros de nuestro equipo puedan desarrollarse integralmente, para que su paso ...

Since the beginning of our operation, we have transformed 4,700 hectares, where we previously carried out open-pit mining, which have been converted into forested areas. Cerrejon publishes action plan to …

The major waste product of coal mining is waste rock, which is stored in dumps of various sizes. Although the adverse effects of coal waste rock dumps on ecosystems and human health are widely recognised, there is little information on their internal hydrological and geochemical processes in the peer-reviewed literature.

This special issue aims to bring together studies in the areas of mine waste characterization, management and remediation, to review the current state of knowledge and to develop improvements in …

A mine waste geochemical characterization program is a fundamental component of the Environmental and Social Impact Assessment (ESIA) for a proposed mine. Typically, the primary objective of the geochemical characterization program is to characterize the acid rock drainage and metal leaching (ARD/ML) potential of mine materials (e.g., …

When exposed to atmospheric O 2 and water, oxidation of sulfide minerals within the waste rock can release contaminated drainage characterized by high concentrations of dissolved sulfate and toxic metal …

Colombia's massive El Cerrejon coal mine has landed in the crosshairs of President Gustavo Petro, who has blamed the open-pit operation for plunging the local …