In this paper we selected an 8 km buffer zone surrounding a typical non ferrous metal mining area in the Suxian District of Chenzhou City in Hunan Province China as the study area We obtained descriptive statistics and performed spatial autocorrelation and interpolation analyses of the concentrations of As Pb Cu and Zn in the soil and
Therefore POCP and HT also account for a particular proportion 6% and 4% respectively While nonferrous metals need to consume many metal ores and other unrecyclable resources the ADP should have a more significant proportion The nonferrous metal industry consumes a lot of materials consumes significant energy and causes extensive pollution
Non surface coal mining is an important means to obtain coal resources It is crucial to study the influencing factors and ecological risks of soil heavy metal contents of non surface coal mines for the protection and management of mine area ecosystems The current study on soil heavy metals in the Fengfeng coal mine a non surface mine located in southern Hebei Province primarily
The study describes the environmental job and work site characteristics of underground metal and nonmetal mining operations from a human factors viewpoint Attention is given to the problems associated with the man machine environment interface in underground mining and to the accidents and injuries associated with underground mining operations
In conclusion this review paper presents a comprehensive scenario of all the existing studies reported in the literature on the life cycle environmental impact analysis of metal mining industries Sixteen metal mining industries are identified which have significant research output that quantified the environmental effects based on LCA methods
Wastewater and solid waste generated during smelting can easily become enriched in heavy metals HMs [2] [1] The distribution of HMs in soil at the smelting site scale is affected by various factors such as the smelting workshop distribution hydrogeological conditions and soil physicochemical properties and complex spatiotemporal variability is
Determining the effects of natural factors on spatial distribution of heavy metals is important for determining the distribution characteristics of heavy metals in soils In this study an 8km buffer zone surrounding a typical non ferrous metal mine in Suxian District of Hunan Province China was selected as the study area and statistical spatial autocorrelation and
Totally % of the mercury in the metal concentrate was emitted to the atmosphere Therefore acid plants in non ferrous metal smelters have significant co benefit on mercury removal and the mercury emission factors from Chinese non ferrous metal smelters were probably overestimated in previous studies
3 Nord Precious Metals Mining Inc operates the only permitted high grade milling facility in the historic Cobalt Camp of Ontario where the company has established a unique position integrating
Literatures have shown that the levels of heavy metal contamination in the soil air river and crops from mining affected areas are higher than those in non mining areas [15] [28] Heavy metals act as pseudo elements of the body while at certain times they may even interfere with metabolic processes [22]
Various factors can influence soil contamination including land use patterns the intensity of human activities the duration of soil contamination Non ferrous metal mining and smelting are the main processes leading to soil contamination with HMs Xing et al 2020
The migration and bioavailability of metals are affected by a series of complex factors For example both Keshavarzifard et al 2019 and Miranda et al 2021 found that the physical and chemical properties of sediments affect the bioavailability of metals Huang et al 2020 found that seasonal changes and spatial distribution affect the bioavailability and
3 The researchers investigated risk of lung cancer in relation to quantitative measures of historical exposure to diesel exhaust after taking into account smoking and other lung cancer risk factors among 12 315 workers at eight non metal mining facilities Elevated mortality from other causes among diesel exhaust exposed miners was examined as well
A total of 237 surface soil samples were collected during May and June 2021 within a mining activity area in Eastern Shandong Province China In this research the soil heavy metal pollution risk and its sources were identified in the mining activity area Overall the soil was acidic in nature and most of the sites were uncontaminated except for a few that were slightly
Here the effects of biotic and abiotic characteristics of soil taken from sites surrounding inactive and active non ferrous metal mine smelting facilities on microbial enzyme activity microcalorimetry and high throughput sequencing of 16S rRNA gene barcoding were studied total As Cu and Mn contents and bioavailable As Cu Cd and Mn
Many non ferrous metal mining and smelting activities have caused severe metal loid contamination in the local soil environment The metabolic activi…
Trans Nonferrous Met Soc China 34 2024 265∠282 Non explosive mechanized and intelligent mining/heading in underground mine Shao feng WANG Yu meng WU Xin lei SHI School of Resources and Safety Engineering Central South University Changsha 410083 China Received 18 September 2023; accepted 12 December 2023
The prospects of the Zacks Mining Non Ferrous industry look bleak as weak demand in China has been weighing on metal prices Industry players also grapple with inflated costs labor shortages
The degree factor as a key factor affecting the evolution of the network reflects the core and key technologies of fusion China Non ferrous Metal Mining Group Co Ltd 34 Daye Non ferrous Metals Group Holding Co Ltd 35
The 113 elements discovered include 88 metals 9 semimetals and 16 non metals Non ferrous metal is the generic term for the 87 metals and 9 semimetals other than iron Chromium and manganese are not classified as non ferrous metals either and instead classified as ferrous metals along with iron
