Sulfur mining is one of the most distinctive resources of Datun Volcano Group. Judging from the available historical and archaeological data, sulfur harvesting in this area was
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· Coal is the world’s largest energy source for electricity generation and is mined on 6 continents. Sulfate contamination of surface and ground water from these mining and processing operations is well recognized and commonly monitored as a primary indicator of coal mining impact to surface water and groundwater. However,
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· 1. Introduction In 1999, China launched a pilot project to develop eco-industrial parks in which the environmental burden created by industrial wastes could be reduced by recycling those wastes as inputs for enterprises within the park (Fang et al., 2007, Yuan et al., 2006, Zhang et al., 2010a).).
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· China's steel production has experienced a period of hesitation from 2013 to 2017, and began to rise again from 2018 (NBSC, 2020). According to the latest data from 2019, the production volume of crude steel in China
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· Here, men toil in arduous conditions to mine sulfur from the depths of the crater—effectively breaking their own bodies in the process. In their search for “devil’s […] In 2014 Italian
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· China is the largest producer of lead and zinc concentrate in the world. The lead-zinc mines of China are used to produce multiple products simultaneously. To evaluate the specific environmental impact of the lead-zinc ore mining and beneficiation, life cycle assessment (LCA) was performed by SimaPro 8.5.2 software in this paper.
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· The time of the sulfur saturation (when it occurred) had a great influence on the ore-forming processes. Major sulfide deposits were dominated by the tectonic settings with thin crust or deep faults ( Barnes and Maier, 1999 , Naldrett, 1999 ), as there were convenient conditions for rapid and efficient magma emplacement before it moved
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· The roof, bottom and 24 coal ply samples were collected by finely partitioning No. 11 coal seam from Antaibao mining district, Shanxi, China in terms of lithotypes. Proximate and sulfur analyses, ICP-AES, ICP-MS, AFS, XRD, SEM–EDX techniques were used on
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· A survey at a continental scale of metal mine areas across Eastern China (latitude: from 21 N to 47 N, longitude: from 99 E to 129 E, Fig. S1) was conducted during June to September 2017. A total of 49 metal mines were sampled, including 16 iron, 17 copper, and 16 lead-zinc mine sites.
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· Sulfur storage in the terrestrial ecosystem of China and the sulfur cycle showing key fluxes at Tg S yr −1 (reproduced from Brimblecombe, 2014). 1) The anthropogenic emissions of sulfur dioxide (SO 2 ) were obtained from the 2015–2020 Annual statistic report on ecological environment in China.
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· 1. Introduction Processes responsible for gold enrichment are of significant economic interest and the advancements in the in situ analyses of sulfide minerals combined with information from fluid inclusions can help in tracking the complex evolution of ore deposits (Fan et al., 2003, Large et al., 2009, Barker et al., 2009, Reich et al., 2013,
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To achieve scientific planning and efficient utilization of water resources in mining areas, it is essential to figure out the chemical formation process and the ground water sulfur
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· The Xikuangshan (XKS) mine, an antimony mine that has been active for more than a century, was chosen for a detailed antimony hydrogeochemical study because of the historical antimony contamination in local bedrock aquifers. Hydrochemical data, δ 34 S values of dissolved SO 4 2−, and δ 98 Mo values were analyzed to identify the
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· Table 6 lists the sulfur content distribution in coals formed during different coal-forming periods in the Guangxi Province. According to results reported in Chou (), coal with less than 1% sulfur is classified as low-sulfur coal, coal with a sulfur content between 1 and 3% is medium-sulfur coal, and coal with higher than 3% sulfur is high-sulfur coal.
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Should this concentrate require a refractory process downstream (eg pressure oxidation), knowing sulfur grade is critical as sulfur controls heat balance in the process. Regardless, we need sulfur models to be as robust as gold models, and created much earlier in the project evaluation process.Sulfur models require quality data collected at the
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· Elemental Abundances in the M9 High Sulfur Coal from the Renjiazhuang Coal Mine, Ningxia Province, China element roof RZ-1 parting RZ-2 RZ-3 RZ-4 RZ-5 RZ-6 RZ-7 RZ-8 RZ-9 RZ-10 RZ-11 RZ-12
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· The Jiaodong Peninsula is the largest gold province in China (reserve > 5000 t, over 40% of China’s total gold reserve) (Deng et al., 2020, Song et al., 2020a, Song et al., 2021a), and is the third largest in the world, after the Witwatersrand Basin (South Africa) and the Muruntau district (Uzbekistan) (Song et al., 2021a).
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· Abstract. Nutrient deficiency, especially bio-available nitrogen deficiency, often impedes the bioremediation efforts of mining generated tailings. Biological nitrogen fixation is a critical process necessary for the initial nitrogen buildup in tailings. Current knowledge regarding the diazotrophs that inhabit tailings is still in its infancy.
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Sulfur was one of Sicily 's most important mineral resources, which is no longer exploited. The area covered by the large deposits is the central area of the island and lies between the provinces of Caltanissetta, Enna and Agrigento: The area is also known to geologists as the chalky-sulfur plateau. But the area of mining exploitation also
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· Elemental sulfur-driven sulfidogenic process under highly acidic conditions for sulfate-rich acid mine drainage treatment: Performance and microbial community analysis Water Res. , 185 ( 2020 ) , Article 116230
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· The total coal consumption in China is on the rise. The characteristics of CO2 and SO2 emissions in the whole process of coal processing and utilization in China are worthy of study. Based on the five links of the whole process of coal production and utilization, including coal production, raw coal processing, logistics and transportation,
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· deposit in Youjiang basin, SW China: Sulfide trace elements and sulfur isotopes September 2020 The Lone Tree deposit is located in the northern Battle Mountain mining district , Nevada. Prior
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· Here, a multi-isotope approach is developed to distinguish C, N and S sources and the associated geochemical processes in a coastal aquifer system of the Pearl River Delta (PRD), China. The PRD is characterized as a typical multilayer groundwater system with a reducing environment in the confined aquifers and an oxidizing
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1. The total sulfur content of 81 coal samples collected from the Upper Paleozoic in North China ranges from 0.19% to 12.36%, of which the total sulfur content of Shanxi Formation coal seam ranges from 0.19% to
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· This study was carried out in rice paddies within the Dabaoshan mining area (24 34′28″N, 113 43′42″E) (Fig. 1) near the largest polymetallic sulfide mine in southern China, which has been in operation for > 50 years.Soils were polluted by enormous amounts of S 2 −, SO 4 2 −, Cu, Pb, Cd, Zn and Fe-rich mine wastes during the early years of
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· We used a conservative estimate of 1% annual improvement in energy efficiency for mining, beneficiation, leaching and electrowinning process in China. For the mining and beneficiation process of hydrometallurgical production in other countries, we worked with the same assumptions as for domestic production.
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· Coal and coal by-products are considered as the potential raw materials for critical elements (e.g., rare earth elements, Li, Ga, Ge, etc.), which have attracted much attention in recent years. The purpose of this study is to investigate the mineralogical and geochemical characteristics, and controlling geological factors of lithium and rare earth
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· 2. Bulk S dep in China was mainly from fossil fuel combustion (76.96%), biomass burning (7.64%), crust (6.22%), aged sea salt (5.48%) and agriculture (3.68%). The existence of aged sea salt in bulk deposition agreed with the general understanding of the long-range transport patterns in China.
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· Introduction Processes responsible for gold enrichment are of significant economic interest and the advancements in the in situ analyses of sulfide minerals combined with information from fluid inclusions can help in tracking the complex evolution of ore deposits (Fan et al., 2003, Large et al., 2009, Barker et al., 2009, Reich et al., 2013,
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· Wang, Fan et al 54, 55 introduced the main problems faced by gas mining in China and discussed the current gas mining mode in China. In view of the difficulties in drilling along the formation and poor drainage effect in the process of gas predrainage,
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