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DOI: 10.21203/rs.3.rs-34437/v1 Corpus ID: 221884511; Microbial adaptation in vertical soil profiles contaminated by antimony smelting plant. @article{Xu2020MicrobialAI, title={Microbial adaptation in vertical soil profiles contaminated by antimony smelting plant.}, author={Rui Xu and Xiaoxu Sun and F. X. Han and …
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Antimony (Sb) and arsenic (As) released from the Sb smelting activities pose a major environmental risk and ecological degradation in Sb smelting sites. Here the effects of Fe/H 2 O 2 modified biochar (Fe@H 2 O 2 -BC) on the synchronous stabilization of Sb/As and the improvement of soil structure in a typical Sb smelting site in Southern China ...
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Abstract. This study takes the Southern antimony smelting slag depot in Xikuangshan (XKS) Sb mine in the city of Lengshuijiang, Hunan, China, as the research object and explores the release law of ...
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The phase transformation mechanism of antimony sulfide in the oxygen-enriched smelting system was investigated. The standard Gibbs free energy change (ΔG θ) of reactions in the smelting system at 100 ~ 1400°C were calculated, indicating that the reaction between Sb 2 S 3 and oxygen was liable to occur first, and that the high-valent …
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Antimony smelting activities damage the soil and vegetation surroundings while generating economic value. However, no standardized methods are available to diagnose the extent of soil degradation at antimony smelting sites. This study developed a standardized framework for assessing soil quality by considering microbial-induced …
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Antimony (Sb) and arsenic (As) released from the Sb smelting activities pose a major environmental risk and ecological degradation in Sb smelting sites. Here the effects of Fe/H 2 O 2 modified biochar (Fe@H 2 O 2 -BC) on the synchronous stabilization of Sb/As and the improvement of soil structure in a typical Sb smelting site in Southern …
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PB89112817. The antimony smelting techniques that have been developed in Xikuangshan are typical of smelters in China. Traditional smelting methods have been …
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CAS No. . Antimony (Sb) is a silver-white brittle solid or a dark-gray, lustrous powder. It can be harmful to the eyes and skin. Antimony can also cause problems with the lungs, heart, and stomach. Workers may be harmed from exposure to antimony and its compounds. The level of exposure depends upon the dose, duration, and work being done.
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As the world's biggest manufacturer of antimony, huge amounts of antimony dusts are introduced into the surrounding atmosphere of Xikuangshan during the mining and smelting processes. Most local …
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Abstract. Antimony mining has resulted in considerable pollution to the soil environment. Although studies on antinomy contamination have been conducted, its effects on vertical soil profiles and ...
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This process contains multiple steps including desulfurization in the fluid-bed roaster, sintering after burden, reduction smelting of calcine with coal in a BF to produce …
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Arsenic-alkali residue is a hazardous waste produced by the refining process of crude antimony in antimony smelting, and contains highly toxic sodium arsenate and a large number of residual alkali. In this study, aiming at the problems of the low recoveries and incomplete separation of arsenic and alkali, the secondary pollution of arsenic-alkali …
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Water samples from Xikuangshan (China), the world largest antimony (Sb) mine with a Sb mining and smelting history of more than 200 years, were analyzed. These water samples ranged from stream water in the vicinity of the mining and smelting area that received seepage from ore residues to the underground mine-pit drainage. The …
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The production process of antimony produces a large amount of solid waste, such as waste rock in mining, tailings in the beneficiation, metallurgical slag in the smelting, and so on. At present, most of these solid wastes are currently in storage, and the storage of a large amount of solid wastes is not only harmful to the local ecological …
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The study area is situated at the XKS antimony mine (111°25′47′′E–111°31′22′′E and 27°43′05′′N–27°49′28′′N), located in Lengshuijiang City, Hunan Province, China (Fig. 1).This mine covers approximately 26 km 2.The region has a subtropical continental monsoon climate with a mean average annual temperature of 16.7℃ and an annual rainfall of 1354 …
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1. Introduction. Antimony is a hard, lustrous, silvery-grey metal. Antimony is unevenly distributed throughout the crust of the Earth, with China (32%), Russia (23%) and Bolivia (21%) as the top three countries in terms of their antimony reserves (Ding et al., 2021).It is extremely difficult to beneficiate antimony since the average abundance of …
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Antimony smelting is done through the pyrometallurgical process or the hydrometallurgical process, but mostly the pyrometallurgical process. Pyrometallurgical …
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1. Antimony – general aspects. Antimony comes under group 15 of the periodic table with ground state electronic configuration [Kr]4d 10 5s 2 5p 3. 121 Sb (57.21% abundance) and 123 Sb (42.7% abundance) are the two stable isotopes of antimony. Antimony can possess different oxidation states (such as +5, +3, 0, −3 and −5), but …
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The distribution, bioavailability, and accumulation of antimony (Sb) at the interface of rhizospheric soils and indigenous plants from a large Sb mining/smelting area in Southwest China were explored. Results showed that the local soil was severely polluted by Sb, and the aluminum magnesium silicate minerals and the carbonate fraction may ...
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Xikuangshan Flash-Antimony Industry Limited Liability Company is a smelting plant in the Xikuangshan area with an annual production of 4 × 10 4 tons of antimony. The wastes produced in the smelting processes in the Xikuangshan area mainly include water-quenched slag (WQS), desulfurized slag (DS), arsenic-alkali residue (AAR) …
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The main method of pyrometallurgy is the volatilization smelting in blast furnace of antimony concentrate. During the smelting process of antimony …
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DOI: 10.1007/S10653-006-9066-9 Corpus ID: 23822327; Distribution and phytoavailability of antimony at an antimony mining and smelting area, Hunan, China @article{He2007DistributionAP, title={Distribution and phytoavailability of antimony at an antimony mining and smelting area, Hunan, China}, author={Mengchang He}, …
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Recovery of arsenic, antimony and selenium from AAR, a type of smelting waste, is carried out through a four-step process (Long et al., 2020a). The process (Fig. 2) involves: (i) hot water ...
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(A) Comparison of geochemical parameters in one uncontaminated profile (UCP) and two contaminated profiles (CP1, CP2, as duplicates). The difference among three profiles were exammed by a one-way ANOVA test. The asterisks represent the statistical significance (*P < 0.05, **P < 0.01, ***P < 0.001, **** P < 0.0001; ns, not …
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Abstract. Antimony mining has resulted in considerable pollution to the soil environment. Although studies on antinomy contamination have been conducted, its effects on vertical soil profiles and depth-resolved microbial communities remain unknown. The current study selected three vertical soil profiles (0-2 m) from the world's largest …
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The accumulation of arsenic and antimony in non-ferrous metal products of the metallurgical indus-try remains a serious practical, as well as envi-ronmental, problem. Although the distribution of arsenic and antimony among the output products during copper smelting and copper matte conver-sion has been studied in detail,1–5 the behavior of
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smelting pro ces ses are the leading source s of Sb and As soil pollution [4]. Gener ally, the c oncentr a tions of Sb a nd As in contaminated soils acc umulate in surface soils ( by tensive
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The antimony smelting techniques that have been developed in Xikuangshan are typical of smelters in China. Traditional smelting methods have been improved since the 1940s, but several novel achievements have been introduced in recent years. The long-established Herrenschmidt shaft furnace has been enlarged and modified into a Chinese-style ...
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1. Introduction. Antimony (Sb) is a metalloid element with potential toxicity and carcinogenicity, and is mainly in the form of inorganic Sb(III) and Sb(V) (Andreae et al., 1981).The toxicity of Sb(III) compounds is more than ten times of that of Sb(V) (Smichowski, 2008).With the development of mining industry, antimony pollution is becoming an …
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The comprehensive utilization of antimony tailings is mainly recovering metals by beneficiation and metallurgy and using antimony tailings as building materials …
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