In the Valongo Belt, with an extension of about 90 km, located very close to Porto, northern Portugal, dozens of ore deposits of various metallic minerals and coal were exploited in the 19th and 20th centuries. One of the metals most intensely exploited was antimony, with or without associated gold mineralization. This research intends to verify …
Sulfur (34 S) and strontium (87 Sr) isotopes have been widely used in coal and multi-metal mining processes to investigate environmental contamination problems in water, soil and air (de Caritat et al., 2005, Dogramaci and Herczeg, 2002, Gammons et al., 2013, Gammons et al., 2010, Gammons et al., 2009). Sulfate has a wide range of …
Antimony (Sb) is a naturally occurring metalloid capable of forming toxic products, is a suspected carcinogen (Gebel 1997; ATSDR 2019) and has been classed as a priority substance (ATSDR, 2017).Antimony can be enriched in soils as a result of the mobilization of antimony from minerals and waste antimony ore and activities including …
The discharge of antimony-containing complex heavy metal wastewater in antimony mining areas can disrupt the surrounding environment and impact the structure and function of ecosystems. The toxic and harmful substances in these wastewater can be detrimental to surrounding plants, animals, and microorganisms, leading to a decline in …
The human and environmental destruction caused by mining in the DRC is staggering. Entire communities have been forced to leave their homes to make way for a new mining concession. ... From the rubber farms of King Leopold's brutal Congo Free State in the 1890s to the palm oil plantations and uranium mines of the twentieth century, …
The discharge of antimony-containing complex heavy metal wastewater in antimony mining areas can disrupt the surrounding environment and impact the …
After studying the impacts of mining cobalt — a common ingredient in lithium-ion batteries — on communities in Africa's Democratic Republic of the Congo (DRC), an interdisciplinary team of researchers led by Northwestern University is calling for more data into how emerging technologies affect human health and livelihoods.
The Congo basin supports Africa's largest inland fisheries with an estimated production potential of 520,000 tonnes per year. ... and environmental problems in urban centres remain key challenges for the DRC. To support the DRC's development challenges, a doubling of aid is urgently needed, including an estimated US$200 million per annum …
Description. This technical report comprises an integral part of the broader United Nations Environment Programme (UNEP) post-conflict environmental assessment (PCEA) of the DRC. The UNEP PCEA aims to evaluate the key environmental problems and threats facing the DRC and propose strategic options and practical recommendations to address …
'Cobalt Red' describes the 'horror show' of mining the element in the DRC : Goats and Soda Phone and electric car batteries are made with cobalt mined in the Democratic Republic of Congo.
In June, 2014, a man began digging into the soft red earth in the back yard of his house, on the outskirts of Kolwezi, a city in the southern Democratic Republic of the Congo. As the man later ...
The Democratic Republic of the Congo (DRC) has a long history of mining activities. However, environmental and socio-economic problems associated with …
The most serious environmental concerns at abandoned mines are acid rock drainage from underground workings, open pit mine faces, waste rock piles, and tailings …
— Cobalt Mining in Congo. The Democratic Republic of the Congo, Africa's second-largest country, is endowed with an exceptional array of natural resources, from coffee, diamonds, and timber, to its …
Mining companies and related businesses want to accelerate domestic production of lithium and are pressing the administration and key lawmakers to insert a $10 billion grant program into Mr. Biden ...
The first global-scale assessment of Sb contamination in soil that was related to mining/smelting activities was conducted based on 91 articles that were published between 1989 and 2021.
Abstract. Antimony (Sb) is a harmful element, and Sb pollution is one of the typical environmental issues in China, meaning that understanding of the geochemical behaviors of Sb is the key to control the fate of environmental Sb pollution. Sb tends to migrate in soluble form in the water-sediment system, but the fate of dissolved Sb is poorly ...
2. Mineralogy, Geochemistry, and Availability of Antimony. It is necessary to understand the geological properties of antimony in order to properly assess the impact of related geological processes on public health [28,29].Antimony exists naturally in the Earth's crust and is released into the environment via both natural and …
The concentration of antimony in water bodies from two perspectives, i.e., natural water bodies and those affected by mining activities, is examined. Furthermore, the review delves into the circulation of antimony in the natural environment, elucidating the phenomenon of antimony pollution in mining area water due to human activities.
Current mining practices are considered unsustainable and unlikely to meet the growing market for Co. Alternative sources such as deep-sea mining are unlikely to be viable and are associated with significant environmental issues. Secondary supply and the recycling rates of Co are low, but with huge potential to be increased and optimised.
The share of cobalt produced by artisanal mining is fluctuating and difficult to determine because of its informal and often illegal character 3. In 2015–2016, 12,000–18,000 tons, that is 15 ...
The human and environmental destruction caused by mining in the DRC is staggering. Entire communities have been forced to leave their homes to make way for a new mining concession. Toxic …
On the other hand, access to safe water is extremely difficult in the DRC, especially in rural areas, where most diamond mines concentrate. Aquastat (FAO, 2016) provides data on the percentage of the population having access to safe-drinking water.The national data increased from 47.9% in 1998–2002 to 52.4% in 2013–2017, whereas the …
Abstract Antimony (Sb) is a harmful element, and Sb pollution is one of the typical environmental issues in China, meaning that understanding of the geochem-ical behaviors of Sb is the key to control the fate of environmental Sb pollution. Sb tends to migrate in soluble form in the water–sediment system, but the fate of dissolved Sb is poorly ...
In terms of environmental issues, mining activities are often connected with erosion and deforestation of protected areas, biodiversity loss, and water pollution. …
However, the study warns of alarming trends including increased deforestation, species depletion, heavy metal pollution and land degradation from …
Antimony (Sb) is a harmful element, and Sb pollution is one of the typical environmental issues in China, meaning that understanding of the geochemical behaviors of Sb is the key to control the ...
Figure 4: EU uses of antimony Other issues: Antimony (Sb) is a potentially toxic metalloid and is released into the environment through various pathways, including mining, ore transportation, smelting, manufacturing, and use of their products, disposal of wastes, and sludges, wastewater, and so on. (Stančić 2022, Mengchang et al 2019).
Antimony may enter the environment as a consequence of mining and processing of its ores and in the production of antimony metal, alloys, antimony oxide, and combinations with other substances. Antimony released from smelters may remain in particulate quantities in the air, some of which reaches the soil during rainfall where it attaches ...
Previous extensive mining activities have led to severe environmental problems in the surrounding areas. Sb is listed as a primary environmental concern by China, the United States, and the European Union due to its acute and chronic toxicity (Cui et al., 2015). Sb is a level II carcinogen for humans, and has chronic effects on some …
1. Pollution sources and emission characteristics1.1. Sb mining and smelting activities. China has the largest reserves of Sb in the world, and it also dominates Sb mining (about 78% of global production capacity) (Dupont et al., 2016).The Sb reserves are relatively concentrated, with 114 Sb mines located within 18 provinces or autonomous …
Large-sc ale mining activities have led to many environmental problems, such as heavy metal pollution, among which antimony (Sb) i s a relatively new pollutant and is often accompanied by …