Sustainability | Free Full-Text | Environmental Impacts: Local
Despite its contributions to the development of the country, the mining sector in Sierra Leone, has been attributed to a multitude of impacts on the environment. This article focuses on assessing the environmental impacts of mining in mining edge communities in Sierra Leone. A survey of 360 people from three mining edge …
اقرأ أكثر
Mineral grades: an important indicator for environmental impact of
We have collected and analysed grade information for nine metals: copper, gold, iron, lead, manganese, nickel, PGM, tin, and zinc. Based on this analysis, we have developed a proposal of "grade classes", i.e., what could be considered low-grade, average-grade, and high-grade deposits for all these metals. We discuss the implications of …
اقرأ أكثر
Iron Ore | Ecological Impacts | UKGBC
Iron ore is a natural mineral deposit that contains iron in various concentrations and is the raw material for the production of steel. It is the world's most extracted metal and the …
اقرأ أكثر
Environmental impact assessment of open pit mining in Iran
The environmental impact of mining operations. The effects of open-pit mining and mineral processing plants on the environment include land degradation, noise, dust, poisonous gases, pollution of water, etc. (Dudka and Adriano 1997 ). Figure 1 shows typical pathways of common pollutant transfer from a tailing dam or from a …
اقرأ أكثر
Mineral Processing and Metal Extraction on the Lunar …
impacts [9]. This natural comminution of the lunar surface results in two main potential feed sources for industrial mineral processing and metal extraction processes, the bedrock, and the -grained fine material formed by this natural weathering, the regolith. In the current work we will look at both
اقرأ أكثر
Accessing Metals from Low-Grade Ores and the Environmental Impact
Mining has advanced primarily through the use of two strategies: pyrometallurgy and hydrometallurgy. Both have been used successfully to extract valuable metals from ore deposits. These strategies, without a doubt, harm the environment. Furthermore, due to decades of excessive mining, there has been a global decline in …
اقرأ أكثر
Can we mitigate environmental impacts from mining?
The major potential environmental impacts associated with mining and associated mineral processing operations are related to erosion-prone landscapes, soil and water quality, and air quality. These potential impacts are recognized and addressed in current mining operations as well as in some former mining operations by reclaiming areas of ...
اقرأ أكثر
Minerals | Free Full-Text | Aquatic Ecological Risk of Heavy
Africa accounts for nearly 30% of the discovered world's mineral reserves, with half of the world's platinum group metals deposits, 36% of gold, and 20% of cobalt being in Southern Africa (SA). The intensification of heavy-metal production in the SA region has exacerbated negative human and environmental health impacts. In recent years, …
اقرأ أكثر
Recovery of magnetite-hematite concentrate from iron ore …
The separation technology provides for production of iron ore concentrate with total iron content of 65.9% and recovers 91.0% of magnetite and 80.5% of hematite from the tailings containing 20.4% of total iron. The proposed technology will increase production of the concentrate at a dressing plant and reduce environmental impact. 1 Introduction
اقرأ أكثر
Energy and greenhouse gas impacts of mining and mineral processing
Mining and mineral processing activities are an integral part of complex material cycles in society, which in turn, interact with natural material cycles and ecosystems. Hilson [6] has listed 27 potential environmental impacts of such interactions. The sustainability of the minerals industry is about managing these cycles in ways that …
اقرأ أكثر
FOHHQYLURQPHQWDOLPSDFWDVVHVVPHQWRI
world sustainable thus reducing the emissions. To address the environmental impacts caused by the mining sectors, this paper is going to analyse the environmental impacts caused by the 5 major minerals extraction processes, which are bauxite, ilmenite, iron ore, rutile and uranium by using the life-cycle impact assessment technologies.
اقرأ أكثر
Towards sustainable extraction of technology materials through …
In this Review, we propose an integrated life cycle assessment and geometallurgical approach to optimize the technical performance and reduce the …
اقرأ أكثر
The Challenges of Reusing Mining and Mineral-Processing Wastes
Mining and mineral-processing wastes are one of the world's largest chronic waste concerns. Their reuse should be included in future sustainable …
اقرأ أكثر
Analysis of life-cycle GHG emissions for iron ore mining and processing
Ferreira and Leite (2015) and Gan and Griffin (2018) analyzed environmental impacts of iron ore mining and processing. However, Farjana et al. (2019b) pointed out that many LCA studies have an ...
اقرأ أكثر
How can metal mining impact the environment?
Operations and waste products associated with metal extraction and processing are the principal causes of environmental concerns about metal mining. Concerns include: Physical disturbances to the landscape. Soil and water contamination. Air …
اقرأ أكثر
Evaluating the environmental and economic impact of mining for …
The outcome of these mineral explorations on the environment and nearby communities poses both negative and positive impacts (Haddaway et al., 2019). While some view the advent of the mining as having created a positive outlook in the society, others believe that it leaves more devastating effects on these communities (Adu-Yeboah …
اقرأ أكثر
Frontiers | Basic characteristics and environmental impact of iron …
Introduction: In our study, various test methods were adopted to explore the mineralogical characteristics, grindability, particle morphology, particle size distribution, and environmental leaching toxicity of iron ore tailings (lOTs).Methods: The methods include petrographic analysis, X-ray diffraction (XRD), scanning electronic microscopy (SEM), …
اقرأ أكثر
Life cycle assessment of iron ore mining and processing
The goal of this study was to determine the energy consumption and associated carbon footprint of selected mining and mineral processing operations to …
اقرأ أكثر
A short review on environmental impacts and application of iron …
Increased mining activity of iron ore has led to the generation of voluminous wastes of various nature, especially during the different stages of its extraction and …
اقرأ أكثر
Ocean fertilization by pyrogenic aerosol iron | npj Climate and
In the IMPACT model, very low aerosol Fe solubilities at the emission are considered for mineral dust (0.1%), solid fuel combustion (0%), and biomass burning aerosols (0%), while high aerosol Fe ...
اقرأ أكثر
Genesis, Uses and Environment Implications of Iron Oxides and …
Therefore, there is a need for valuation of the environmental impact in the planned beneficiation cycle. Sustainable beneficiation is required to reduce its impact on the natural, social or economic environment. ... A new on-line method for predicting iron ore pellet quality. Mineral Processing and Extractive Metallurgy Review. 2015; 36 (6):377 ...
اقرأ أكثر
Towards sustainable extraction of technology materials through
Future research should focus on supporting early environmental impact assessments by linking geologists and LCA practitioners with mining and mineral processing engineers to develop integrated ...
اقرأ أكثر
Iron Ore Characterization Techniques in Mineral Processing
This section reviews and describes the use of the techniques mentioned in "General Ore Characterization Tests and Their Principles" section for characterization of iron ore samples of various origins, resulting in valuable inferences. The primary characterization tool used in mineral pro-cessing is optical spectroscopy.
اقرأ أكثر
5.6: Mineral Resources- Formation, Mining, …
Smelting can be a major source of air pollution, especially SO 2 gas. The case history below examines the environmental impact of mining and processing gold ore. Figure 5.6.6 5.6. 6 Acid Mine Drainage. The water …
اقرأ أكثر
The steel industry, abiotic resource depletion and life cycle
The most famous, perhaps, was 'The Limits to Growth' (Meadows et al., 1972), which included a systems dynamic model called "World3" designed to qualitatively model the interaction of global population, social issues, consumption, environmental impacts, mineral and energy resources and the economy (including the recent 30-year update ...
اقرأ أكثر
What Is The Environmental Impact Of The Mining Industry?
Mining is the extraction of minerals and other geological materials of economic value from deposits on the Earth. Mining adversely affects the environment by inducing loss of biodiversity, soil erosion, and contamination of surface water, groundwater, and soil. Mining can also trigger the formation of sinkholes.
اقرأ أكثر
A Life Cycle Assessment study of iron ore mining
The results indicated that the use of grinding media in the processes is the main source of environmental impacts in the iron ore production chain, highlighting its …
اقرأ أكثر
The social and environmental complexities of extracting energy
Mineral extraction has contributed to environmental degradation, population displacement, violent conflicts, human rights violations and other adverse …
اقرأ أكثر
Environmental Considerations | SpringerLink
The environmental impacts of iron ore mining, as the very first step in steel production, are important information for understanding the sustainability profile of steelmaking process. Steel consumers are keenly aware of this need and are looking to better understand the contribution of iron ore processing to the overall footprint of steel ...
اقرأ أكثر
A review on the impact of mining and mineral processing …
Agglomeration, loading, haulage, and ore processing in iron mining is harmful to the environment due to the emission of inorganic chemical materials, use of electricity, and use of grinding media. From magnesium oxide production, the calcination …
اقرأ أكثر