Calcium carbide mud mine in Fengfeng mining area, Handan City, Guangdong Province

Hydrogeochemical Modeling of Karst Groundwater in the

2023年11月24日  The study of groundwater hydrogeochemistry is of great significance to the development, utilization and protection of regional groundwater resources In this paper, a groundwater caused by coal mining in Fengfeng in Hebei, China Results indicate that longterm and largescale mine excretion and excessive groundwater exploitation are major factors that Effect of coal mining on karst groundwater in the Fengfeng coalfield2023年11月22日  Gypsum is relatively developed in some areas of the Fengfeng mining area, such as the Upper Majiagou Formation and Fengfeng Formation of the Middle Ordovician Hydrogeochemical Characteristics and Genetic Analysis of Karst 2023年1月1日  In this study, the hydrogeochemical evolution mechanism of groundwater in a multiaquifer system in the Fengfeng Mining Area was investigated using machine learning Hydrogeochemical evolution induced by longterm mining

Groundwater Hydrogeochemical Processes and Potential Threats

2023年11月20日  This study can provide guidance on the safety of drinking water in the Fengfeng coal mining area and other areas with intensive industrial, mining, and agricultural 2011年1月1日  Fengfeng Group Company has 15 mines on production Among them, there are three coal and gas outburst mine, which are Dashucun mine, Xuecun mine, and Yangquhe Fengfeng Coalfield Gas Occurrence Regularity and Influence Factors2023年11月20日  This study can provide guidance on the safety of drinking water in the Fengfeng coal mining area and other areas with intensive industrial, mining, and agricultural Groundwater Hydrogeochemical Processes and Potential Threats 2016年12月16日  In this study, the hydrogeochemical evolution mechanism of groundwater in a multiaquifer system in the Fengfeng Mining Area was investigated using machine learning Simulation of groundwater level recovery in abandoned mines,

Hydrogeochemical Modeling of Karst Groundwater in the

Abstract—The study of groundwater hydrogeochemistry is of great significance to the development, utilization and protection of regional groundwater resources In this paper, a 以河北省邯郸市峰峰矿区九龙口煤矿的矸石山周边土壤 (0 cm~20 cm)为研究对象，采用火焰原子吸收或石墨炉原子吸收分光光度法对土壤中重金属Cd、Pb、Zn、Cu、Cr含量进行了分析，评估 峰峰矿区九龙口煤矿矸石山周边土壤重金属调查和 表1五种重金属元素含量统计结果 由表1可见，Cd在矸石山西部浓度最高，北部占第二位，西部、东部的Cd含量相对较低。 随着与矸石山距离的增加Cd含量逐渐下降。在矸石山南北方向上随着距离的增大，Pb含量降低，但东西方向随着距离的增加，Pb含量增高，其西部方向增加情况尤为显 峰峰矿区九龙口煤矿矸石山周边土壤重金属调查和 The result and discussion are shown in Sections 4 and 5 respectively Section 6 gives the conclusions of this study Remote Sens 2021, 13, 3091 3 of 21 2 Study Area and SAR Datasets 21 Background of Fengfeng Mining Area The Use of Multiplatform SAR Imagery in Mining

Use of Multiplatform SAR Imagery in Mining

2021年8月5日  Ground deformation related to mining activities may occur immediately or many years later, leading to a series of mine geological disasters, such as ground fissures, collapses, and even mining earthquakes 2022年1月21日  Project name:Design of rural upgrading and reconstruction in Fengfeng mining area, Hebei Province Project address：Pengcheng Town, Fengfeng mining area, Handan City, Hebei Province Customer：Handan Fengfeng mining area Meili Village Construction Investment Co, Ltd Planned area：Whole village Completion time：201709Design of rural upgrading and reconstruction in Fengfeng mining area 2018年7月5日  邯郸市峰峰矿区话调查分析——一个厂矿型方言岛的形成与发展investigation and analysis of fengfeng mining area dialect in handan city formation and development of a mining dialect islanddocx 101页邯郸市峰峰矿区话调查分析——一个厂矿型方言岛的 2023年5月5日  Download this stock image: HANDAN, CHINA MAY 5, 2023 Photo taken on May 5, 2023 shows the relief of a large Cizhou kiln in Fengfeng mining area of Handan City, North China's Hebei Province It is understood that the whole length of the mountain relief is nearly kilometers, and the average height is about 25 meters More than 20 pictures are created in HANDAN, CHINA MAY 5, 2023 Photo taken on May 5, 2023

Ground Subsidence Evolution from 1000 m Deep Mining: A

2021年9月27日  The mining of coal resources in eastern China has entered the stage of deep mining, and many mines have reached the depth of 1000 meters Different from shallow and moderate depth mining, the Abstract The study of groundwater hydrogeochemistry is of great significance to the development, utilization and protection of regional groundwater resources In this paper, a complete and comprehensive analysis of three runoff zones is carried out in the Fengfeng mining area of Handan City, Hebei Province, China The Piper trilinear diagram is used to analyze the types Hydrogeochemical Modeling of Karst Groundwater in the Fengfeng Mining AreaHAO Guoqiang, HU Sherong Organic nitrogen forms of different rank coals in HandanFengfeng mining area, China[J] COAL GEOLOGY EXPLORATION, 2020, 48(1): 70anic nitrogen forms of different rank coals in HandanFengfeng 2023年1月1日  The Fengfeng Mining District, which was chosen as the study area, is located in Handan City, Hebei Province, northern China, with a total area of approximately 353 km 2 (Liu and Huang, 2021) It includes the Wu, Yangquhe, and Xinsan submines, and the abandoned Yi and Er mines ( Fig 1 )Hydrogeochemical evolution induced by longterm mining

Blue skies return to Hebei's coal mining area

2020年9月4日  People chat with each other in Qingquan wetland park in Fengfeng mining district of Handan, Hebei province, on May 23, 2020 [Photo/Xinhua] Black smoke spewing from coal mines has disappeared 2007年10月1日  Soil contamination in the vicinity of the Dabaoshan Mine, Guangdong Province, China, was studied through determination of total concentrations and chemical speciation of the toxic metals, Cu, Zn Soil Heavy Metal Pollution Around the Dabaoshan Mine, Guangdong The methods of remote sensing image interpretation and earthquake hypocenter analysis were adopted to study the neotectonic characters of HandanFengfeng mining areaControlled by the regional tectonic background of extensional detachment of the piedmont fault zone of Taihang Mountain,some old faults revived and some new faults formed in HandanFengfeng mining Neotectonic character of HandanFengfeng mining area and its 2022年1月21日  Project name:Design of rural upgrading and reconstruction in Fengfeng mining area, Hebei Province Project address：Pengcheng Town, Fengfeng mining area, Handan City, Hebei Province Customer：Handan Fengfeng mining area Meili Village Construction Investment Co, Ltd Planned area：Whole village Completion time：201709乡村振兴：河北峰峰矿区乡村提升改造设计 / 尤境设计

Hydrogeochemical evolution induced by longterm mining

2023年1月1日  The Fengfeng Mining District, which was chosen as the study area, is located in Handan City, Hebei Province, northern China, with a total area of approximately 353 km 2 (Liu and Huang, 2021) It includes the Wu, Yangquhe, and Xinsan submines, and the abandoned Yi and Er mines (Fig 1)2021年3月1日  Heavy metals (Zn, Cu, Pb and Cd) concentrations using atomic absorption spectrometry were investigated in roadside surface (020 cm) and subsurface (2040 cm) arable soils along Shangzhi section Distribution Characteristics and Pollution Assessment of Hg in Soil mining area Study area Fengfeng mining area is located in the southwest of Handan City, Hebei Province, with geographic coordinates of E114° 3′ 114° 16′ and N36° 20′ 36° 34′ The terrain is at, and the highest elevation is 891 m It is one of the four mining areas in Hebei Province The mining area belongs to the warm temperateSpatial distribution characteristics and risk assessment of soil 2018年5月31日  Using stable isotopes (δD, δ 18 O, δ 34 S and 87 Sr/ 86 Sr) to identify sources of water in abandoned mines in the Fengfeng coal mining district, northern China Utilisation des isotopes stables (δD, δ 18 O, δ 34 S and 87 Sr/ 86 Sr) pour identifier l’origine de l’eau dans des mines abandonnées dans le district des mines de charbon de Fengfeng dans le Nord de la ChineUsing stable isotopes (δD, δ18O, δ34S and 87Sr/86Sr) to identify

Heavy metal content and microbial characteristics of soil plant

2023年6月9日  The disordered mining of Dabaoshan leadzinc mineral resources in Shaoguan has brought serious harm to the regional ecological environment In order to investigate the heavy metal pollution status and microbial characteristics of soil plant system in mining area, The distribution of heavy metals in the soil, the activity of soil microorganisms and the 2022年1月10日  This study reassess the environmental impacts of the Dexing copper mine (the largest openpit copper mine in Asia) on the Lean river and its two tributaries (the Dawu river and Jishui river) in the Jiangxi province, China, with particular focus on metal pollution as well as the effectiveness and sideeffects of remediation activities Results show that the Dawu river and A reassessment of metal pollution in the Dexing mining area in 2016年4月11日  The present study was conducted to investigate the concentrations of heavy metals (HMs) in deep groundwater from coal mining area, including cadmium (Cd), chromium (Cr), copper (Cu), zinc (Zn), lead (Pb), and nickel (Ni) The samples were collected from different aquifers in four coal mines of northern Anhui province, China, which were unconsolidated Heavy metals in deep groundwater within coal mining area, 2012年2月1日  Request PDF Effect of acid mine drainage on a karst basin: a case study on the highAs coal mining area in Guizhou province, China Acid mine drainage (AMD) is a common pollution in mining Effect of acid mine drainage on a karst basin: a case

Geological conditions of coal bed methane occurrence in Handan

2014年12月4日  2 Hebei HanXing Institute of Mine Metallurgy Design Co, Ltd, Handan, Hebei , China World Journal of Engineering ISSN: 17085284 Article publication date: 4 December 2014 Downloads 114 Abstract The coal bed methane resources distribution of Handan Fengfeng Mining area has the features of "richness in the midland 2023年3月18日  The pollution of heavy metals in soil caused by exposed coal gangue and its prevention and control has become a hot issue restricting the green mining of coal in China Nemerow integrated pollution index (NIPI), potential ecological risk index (RI) and human health risk assessment model were used to evaluate the pollution and risk of heavy metals (Cu, Cr, Spatial distribution characteristics and risk assessment of soil 2023年11月24日  Ophiolites often form complex, fractured, multilithological and highly compartmentalized aquifers that are difficult to characterize Groundwater chemistry reflects waterrock interactions and Hydrogeochemical Modeling of Karst Groundwater in the Fengfeng Mining AreaThe Fengfeng mine in Handan, North China has a 30y history of coal mining with longterm mining activities and complex geological conditions, resulting in a complex hydrogeochemical environment Piper diagram of mine water samples in the study area: a magnesium

Roles of red mud in remediation of contaminated soil in mining areas

2024年4月1日  In mine tailings, the addition of 2% Mine tailings from Suseong Pb/Zn mining area in Chungnam Province, Korea Hydrationhardening characteristics of Bayer method lowiron red mud in calcium carbide slagdesulfurization gypsum system Mater Herald, 30 (14) (2016), pp 1201242019年7月17日  Fluorine is one of the most active elements cycled in nature, and it is pervasive within almost all areas of the natural environment, such as water bodies, the soil, the atmosphere, and in rocks and organisms (Hong et al, 2018)Fluorine in coal is a harmful element (Ren et al, 1999) as it enters the environment in various forms during the process of coal mining, Geochemical characteristics of fluorine in coal within Xiangning mining 2024年2月23日  Sampling and analysis Soil sample analysis In this study, 37 sampling points were selected along the mainstream of the river based on the field survey with consideration of the distribution of farmland and mining areas (Fig 1)Soil samples were generally collected at depths of 0–20 or 20–40 cm, with the deepest sampling depth not exceeding 50 cm (Huang et Source and risk assessment of heavy metals in miningaffected areas The Fengfeng mine in Handan, North China has a 30y history of coal mining with longterm mining activities and complex geological conditions, resulting in a complex hydrogeochemical environment in the mining region In this study, the hydrogeochemical evolution mechanism of groundwater in a multiaquifer system in the Fengfeng Mining Area was ENHydrogeochemical evolution induced by longterm mining

Spatial Distribution and Evaluation of Heavy Metal Pollution in Soil

2019年12月1日  Taking the coal gangue mountain in Hebei Fengfeng mining area as the research object, 30 soil samples were collected in the east, southeast and southwest directions within 300m of the coal gangue 2014年11月1日  The coal bed methane resources distribution of HandanFengfeng Mining area has the features of "richness in the midland and north while poorness in the south, and richness in the east while Geological conditions of coal bed methane occurrence in Handan Silicon Carbide Ceramic Supplier, Silicon Carbide Ceramic, Fengfeng Mining Area, Handan City, Hebei Province Telephone: Zip Code: Fax: Please sign in to view Fengfeng Mining Area, Handan City, Hebei Province RD Capacity: Own Brand(RQ) No of RD Staff: 510 Silicon Carbide Ceramic Manufacturer, Silicon Carbide Ceramic, 2021年12月10日  The carbide slag used in this study was provided by Fuxin Acetylene Factory, Liaoning Province, China, and the bentonite was provided by Wanpeng Mine, Liaoning Province, ChinaFormation mechanism of carbide slag composite sustainedalkalinity

Feng Shui in Mainland China: Guangdong Province

2021年4月20日  Feng Shui is referenced, for example in the advertising and reviewing of many luxury hotels across the province The Four Season Hotel Guangzhou, located in the city’s CBD, for example, is said to be ‘perfectly situated for positive Feng Shui’ Footnote 2; and in the Doubletree by Hilton, in the historic centre of the city, people ‘can find Feng Shui elements 2016年1月1日  The highintensity mining area (previously mined area of Ili No4 Coal Mine) has the worst ecological environment quality, followed by the coal reserve area of Ili No4 Coal Mine and the planned Surface subsidence control during bag filling mining of super high 2021年10月4日  Aiming at the low mining rate in mines, Xingelao, Dabianyao, and Dongliang Coal Mines in Shenmu Mining Area, Shaanxi Province, China were taken as research objects(PDF) Evaluation of mining capacity of mines using the 2022年9月1日  The Fengfeng mine in Handan, North China has a 30y history of coal mining with longterm mining activities and complex geological conditions, resulting in a complex hydrogeochemical environment Hydrogeochemical evolution induced by longterm mining

Heavy metal content and microbial characteristics of soil plant

2023年6月9日  1 Introduction The distribution of nonferrous metals in south China is intensive, and a lot of soil is destroyed by mining or polluted by heavy metals, which has caused serious damage to the soil ecosystem [1,2]Soil contamination in mining areas can also be transported by surface runoff and biogeochemistry [3–5], endangering the environmental quality of adjacent Nonsurface 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 nonsurface coal mines for the protection and management of mine area ecosystems The current study on soil heavy metals in the Fengfeng coal mine, a nonsurface mine located in southern Hebei Province, primarily Risk Assessment and Influencing Factors Analysis of Heavy Metals

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