Alternatives to cyanide in the gold mining industry: what prospects for the future? J. Clean. Prod. (2006) M.E. Schlesinger et al. Flash smelting; M.E. Schlesinger et al. ... Stabilized heavy metals-containing phases and low chlorine utilization limit heavy metals chlorination reactions. The traditional method of adding chlorinating agents can ...
The exploitation and utilization of mineral resources have been pivotal to China's economic development (Sun et al., 2021).However, the accumulation of heavy …
Heavy metals are introduced to the soil through parent rocks and anthropogenic activities. Mining, seepage from landfills, pesticide application, industrial effluents, and irrigation of soil with ...
In an effort to provide information on the level of heavy metals, the qualitative and quantitative assessment of heavy metals in the Ilesha gold mining sites of Osun State could be addressed with the outcome of this study. Therefore, this study intends to use particle-induced x-ray emission (PIXE) to analyze heavy metals in soil samples ...
[14] Chen Y. 2017 Review on Remediation and Safety Utilization of Heavy Metal Pollution of Farmland Soil in China J. Modern Agricultural Science & Technology. Google Scholar [15] Hu M, Wu J Q, Peng P Q et al. 2014 Assessment model of heavy metal pollution for arable soils and a case study in a mining area J. Acta scientiae circumstantiae 34 423-430
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 …
Only a few studies are available on such issues globally, and this is the first in South African case. Galhardi et al. (2020b) investigated that REEs in soil around coal mining in Brazil were beyond some trace metals, and Fiket et al. (2016) found substantial REEs in soil vicinity of coal-fired power plant (CFPP).
SES for environmental availability of metals in Gold mining tailing. ... Utilization of red mud and Pb/Zn smelter waste for the synthesis of a red mud-based cementitious material. ... Improving risk management by using the spatial interaction relationship of heavy metals and PAHs in urban soil. J. Hazard. Mater., 364 (2019) ...
Despite the alarming heavy metal contamination of our waters in the mining areas across the country, information on heavy metal pollution status, extent of contamination and its ecological risks using pollution assessment indices are scarcely available which can lead to water quality deterioration and ecosystem degradation.
An artisanal gold mining region located in North of Atbara (Dar-Mali locality), River Nile State, Sudan (17.82289 to 17.82389N and 33.99974 to 34.02127E) has been studied with the aim to evaluate ...
Human activities, including but not limited to, the operations of mining, smelting, processing of ores, activities in gas plants, and various metallurgical sectors, along with the utilization and production of fertilizers, sewage treatment, and combustion of fossil fuels for generating electricity, are known to be significant contributors to the …
The study of the mobility and availability of metals that compound the gold tailing could be done through SES using extractors that simulate leaching processes in nature, whose purpose is to quantify the available percentage of metals from the residue (Yang et al., 2009; Kerolli-Mustafa et al., 2015; Fernández-Ondoño et al., 2017; …
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 ...
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 …
This paper describes the mineralogical properties of gold tailings, including chemical composition, phase composition, particle size distribution, and microstructure; summarizes the recycling and utilization of components such as mica, feldspar, and valuable metals in gold tailings; reviews harmless treatment measures for harmful …
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 ...
Pseudomonas koreensis and Pantoea sp. were isolated from a gold mining soil and assessed for bioflocculant production.. 71% and 51% flocculation were obtained at optimum conditions (pH 7.5 and 30 °C) for Pantoea sp. and P. koreensis respectively.. Glucose gave the highest yield of 2.98 g L −1 and 3.26 g L −1 for Pantoea sp. and P. …
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 …
[7][8][9] Furthermore, animals from mining communities in the North West and Gauteng Provinces have high levels of heavy metals in their faeces and serum due to the mining in these areas. 10, 11 ...
1. Introduction. Non-ferrous metal mining causes severe contamination of As and heavy metals (HMs). Due to the increasing activity and mobility in water [1,2], sediments are …
Cadmium is a heavy metal commonly found in gold ores and is a byproduct of gold mining. Consequently, it can enter the environment through various pathways, including (1) Tailings: After gold ore has been processed, the remaining waste products, known as tailings, may contain high concentrations of Cadmium.
Gold mining has increased the prevalence and occurrence of heavy metals contamination at the Earth's surface and is causing major concern due to the potential risk involved. This study investigated the impact of gold mine on heavy metals (As, Cd, Cr, Cu, Pb, Hg, Ni, Fe, Mn, and Zn) pollution and eva …
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.
1. Introduction. Non-ferrous metal mining causes severe contamination of As and heavy metals (HMs). Due to the increasing activity and mobility in water [1,2], sediments are one of the major destinations for As and HMs migration and diffusion in the water [2,3].As and HMs accumulated in sediments are often tens or even hundreds of times the amount in …
Soil contamination with heavy metals due to mining activities poses risks to ecological safety and human well-being. Limited studies have investigated heavy metal pollution due to artisanal mining. The present study focused on soil contamination and the health risk in villages in China with historic …
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.
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, …
The contribution of the processes involved and waste generated during gold mining to the increment of heavy metals concentration in the environment has been well established. While certain heavy metals are required for the normal functioning of an organism, certain heavy metals have been identified for their deleterious effects on the …
The cyanide content of gold tailings exceeds the standard seriously due to the cyanide extraction process. In order to improve the resource utilization efficiency of gold tailings, a medium ...
Tailings from gold mining activities have resulted in significant environmental ... 2016). The current treatment methods for gold mine tailings are secondary utilization and ecological restoration ... the efficacy of direct phytoremediation is limited by the low nutrient content and high levels of heavy metals in gold mine tailings. ...
Chen et al. (2011) also indicated that the leachability of the heavy metals from sulphidic mine tailings could be eliminated by alkali-activation. While the properties of the mine tailings depend on the mineralogy of the mining site, in the present study the alkali-activation of Finnish mine tailings from a gold mining site was investigated.
Background. Artisanal and small-scale mining activities are widely practiced globally. Concentrations of heavy metals associated with gold, such as copper (Cu), zinc (Zn), arsenic (As), cadmium (Cd), mercury (Hg) and lead (Pb) can increase in the environment as a result of mining activities, leading to environmental pollution and pose …
