Frontiers | Heavy metal pollution and risk assessment of …
1 State Key Laboratory of Comprehensive Utilization of Low-Grade Refractory Gold Ores, Zijin Mining Group Co ... such as As, Pb, Zn, Mn, Cr, and Cd. In the process of copper mining, these coexisting heavy metals are discarded and enter the mine tailings pond. Heavy metals play a significant impact on the quality of the soil, and can …
Adsorption of Heavy Metals from Small-Scale Gold …
Small-scale mining in the Philippines lacks research and technologies for the application of an inexpensive and environmentally sound treatment of its wastewaters. Hence, laboratory-scale fixed-bed column tests were carried out to test and evaluate the sorbent adsorption performance of the Philippine Natural Bentonite (PNB) and the …
Global research progress on mining wastewater treatment: a …
Heavy metals seep into rocks, accumulating in raw materials, and releasing pollutants into the environment. 3 All of this happens naturally, either as a result of rainfall, melting snow, or groundwater. 9 Many ores, mining precious metals, such as gold (Au), copper (Cu), 10 arsenic (As), mercury (Hg), cyanide, and uranium (U), contain high ...
Composition, Harm and Resource Utilization Technology of …
PALAPA T M, MARAMIS A A. Heavy metals in water of stream near an amalgamation tailing ponds in talawaan-tatelu gold mining, north sulawesi, indonesia[J]. Procedia …
Effect of heavy metals on substrate utilization pattern, biomass, and
This may be explained by leaching, translocation, and accumulation of heavy metals released from the mining into the soils. The contents of heavy metals had the order Zn>Pb>Cu. The results also indicated that the mining wasteland was severely polluted by combined heavy metals and might cause ecosystem problems and impacts …
Current situation and prospects for the clean utilization of …
By summarizing the chemical composition of typical gold tailings, it is found that the gold tailings mainly contain SiO 2, a certain amount of CaO, Fe 2 O 3, Al 2 O 3, …
Immobilization of sulfates and heavy metals in gold mine …
Gold mining produces hazardous tailings wastes with elevated sulfur content and high levels of heavy metals including oxyanion elements such as V and As. This …
Heavy Metals and Human Health: Possible Exposure Pathways and …
This comparison shows that inhaling mercury vapors, which occurs, e.g., during small-scale gold mining, silver-ore work and dental work with amalgams, is dangerous. Mercury causes neurological problems and impairs kidney function. ... Heavy metals, which are present particularly in colored cosmetics, may be there either …
Unlocking the potential of microbes: biocementation
Mine tailings contain finer particles, crushed rocks, dugout-soil, water, and organic and inorganic metals or metalloids, including heavy metals and radionuclides, which are dumped as waste or non-economic by-products generated during mining and mineral processing. These abundant and untreated materials seriously threaten the …
Related health risk assessment of exposure to arsenic and …
Exposure to heavy metals in mining activities is a health issue among miners. This study was carried out at three small-scale gold mining sites situated in …
(PDF) HEAVY METALS IN WATER, FISH AND SEDIMENT FROM A GOLD …
The concentrations of Mn, Fe, Cu, Zn, Pb, and Cd in sediments from Great Kwa, Calabar, Cross River, Imo, and Qua Iboe Rivers were investigated during the dry and wet seasons using standard techniques.
A review of heavy metals accumulation pathways, sources and …
One of the foremost issues for the current society is heavy metal pollution which is caused owing to recent extraordinary urbanization and industrialization. The impact of metal contamination on the agricultural fields/soils results in contamination of food sources and reaching the human food chain. The heavy metals (HM) and metalloids …
Heavy metal contamination in the vicinity of gold mine and …
The Eastern Desert in Egypt is a significant gold-mining region, and its gold mine is one of the world's oldest. The presence of tailings and slag piles in the vicinity of …
Assessment of contamination and potential ecological risks of heavy …
Introduction. In recent years, heavy metals and metalloids have gained considerable attention in aquatic and terrestrial ecosystems because many are potentially toxic and have the ability to accumulate in plants and animals at high concentrations [[1], [2], [3], [4]].Heavy metals are easily adsorbed onto particulate matter and most often …
Effect of Mining on Heavy Metals Toxicity and Health Risk …
Heavy metal contamination of selected rivers in the mining areas of Ghana was studied. In the study, 44 composite water samples were collected, digested, and analyzed for selected metals using ICP-MS. The average concentrations (mg/L) of heavy metals from the pristine sites ranged from 0.003 (As) to 0.929 (Fe), and the mining …
Arsenic and Heavy Metals in Sediments Affected …
Gold mining is associated with serious heavy metal pollution problems. However, the studies on such pollution caused by gold mining in specific geological environments and extraction processes …
Heavy Metal Pollution from Gold Mines: Environmental …
These mechanisms can serve as potential tools for bioremediation of heavy metal polluted sites. This review focuses on the effects of heavy metal wastes generated from gold mining activities on the environment and the various mechanisms used by bacteria to counteract the effect of these heavy metals in their immediate environment.
Utilization of activated carbon from coconut shell in remediating heavy
Utilization of activated carbon from coconut shell in remediating heavy metal waste in soil around mining area August 2019 IOP Conference Series Earth and Environmental Science 311(1):012012
Utilization of gold tailings as an additive in Portland cement
Mine tailings are formed as an industrial waste during coal and ore mining and processing. In the investigated process, following the extraction of gold from the ore, the remaining tailings are subjected to a two-stage chemical treatment in order to destroy the free cyanide and to stabilize and coagulate heavy metals prior to discharge into the tailings pond.
Effects of Soil, Water and Air Pollution with Heavy Metal
Heavy metal contamination stemming from lead and zinc mining and processing operations is a prevalent and pressing environmental issue. This review article explores the multifaceted dimensions of this problem, examining the primary sources of contamination, which encompass mining activities, production and processing …
Comprehensive Utilization and Resources of Gold Mining …
The gold mine discharges tailings massively every day,which results in gold and useful metal draining,simultaneously brings the enormous harm to the environment The approach to comprehensive ...
Identifying driving factors of soil heavy metal at the mining …
Identifying driving factors of soil heavy metal at the mining area scale: Methods and practice Chemosphere. 2024 Feb ... Key Laboratory of Gold Mineralization Processes and Resource Utilization, MNR, Jinan, 250013, China; Shandong Provincial Key Laboratory of Metallogenic Geological Process and Resources Utilization, Jinan, 250013, China ...
Heavy Metal Pollution from Gold Mines: Environmental …
This review focuses on environmental impacts of increasing heavy metal pollution caused by gold mining activities on human health and the environment and how bacteria interact with these metals. ... Exiguobacterium strain WK6 and Pseudomonas …
Assessment of selected heavy metal concentrations in soils …
The study investigated the contents of selected heavy metals in top soils and sub-soils around the vicinity of artisanal gold mining site in Minna, Niger state, using standard procedures. Digestion was done using HNO3–H2O2–HCl and heavy metal content using atomic absorption spectrometer. The results obtained showed some …
Disposal of mine tailings via geopolymerization
Mining is the foundation of the modern industry ... Potential utilization of artisanal gold-mine tailings as geopolymeric source material: preliminary investigation. SN Appl. Sci., 1 ... Immobilization of sulfates and heavy metals in gold mine tailings by sodium silicate and hydrated lime. J. Environ. Chem.
Process effluents and mine tailings: sources, effects and
Benavente M, Moreno L, Martinez J (2011) Sorption of heavy metals from gold mining wastewater using chitosan. J Taiwan Inst Chem Eng 42:976–988. ... Okujeni C (2008) Utilization of fly ash for treatment of coal mines wastewater: solubility controls on major inorganic contaminants. Fuel 87:2450–2462. Article Google Scholar
A Sustainable Approach to Transforming Mining Waste …
Mineral waste can be defined as a material leftover from exploration, mining and quarrying operation that cannot find a productive use. It is the high-volume material that originates from the excavation and physical and chemical processing of a wide range of metalliferous and non-metalliferous minerals by opencast and deep shaft methods [].The …
Influence of the Artisanal Gold Mining on Soil Contamination with Heavy
Twenty soil samples were collected from North of Atbara (Dar-Mali locality),River Nile State, Sudan (17.82289 to 17.82389N and 33.99974 to 34.02127E) inside and outside gold mining area in order ...
Mining Raw Materials for Solar Panels: Problems and Solutions
A transition to clean energy is an urgent priority worldwide to mitigate the worst impacts of climate change and preserve a livable planet. Solar power is jetting us towards that goal. By 2010, the US had installed 2.6 gigawatts (GW) of solar power, enough power to provide electricity for o
Utilization of activated carbon from coconut shell in remediating heavy
This shows that the traditional gold mining process in Jendi village does use mercury for the process of separating gold ore with sand and mud. Heavy metals can be divided into two types, there are essential heavy metals and non-essential heavy metals [8] : Essential heavy metal Such as Zn, Cu, Fe, Co, Mn and Se is required by living things ...