MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
Air pollution with dusty coal gangue
Environmental hazards and comprehensive utilization of solid
2024年4月1日 By advancing comprehensive methods for coal gangue utilization, we not only transform coal gangue from solid waste into a valuable resource, maximizing its utility, but also 2024年2月1日 Under the longterm erosion of natural environment such as sunshine and rain, the HM elements in coal gangue will pollute the surrounding soil environment and air quality Representative coal gangue in China: Physical and chemical 2024年6月4日 The main hazards of coal gangue are environmental pollution, soil, and water pollution, and lead to geological disasters (1) Harm to the atmospheric environment The Characteristics of Coal Gangue and Present Situation and Prospect 2024年9月7日 The modification technologies, including mechanical, chemical, microbiological, thermal, hydrothermal and combined modifications, are effective to enhance the soil Opportunities, challenges and modification methods of coal
Detection of Spontaneous Combustion Areas of Coal
2023年12月8日 Spontaneous combustion of coal gangue dumps not only releases toxic and harmful gases, polluting the environment, but also leads to explosion accidents and casualties due to improper handling2021年4月4日 Coal and coal gangue spontaneous combustion (CGSC) occurs globally, causing significant environmental pollution However, its emissions are poorly quantified and are Ambient PM25 and Related Health Impacts of Semantic Scholar2015年2月18日 Results showed that compared with pure coal gangue, cocombustion with lowquality coal lowered ignition and burnout temperature, but only slightly decreased the Cocombustion and emission characteristics of coal gangue and 2021年4月4日 Coal and coal gangue spontaneous combustion (CGSC) occurs globally, causing significant environmental pollution However, its emissions are poorly quantified and are Ambient PM25 and Related Health Impacts of Spontaneous
Characteristics and risk assessment of atmospheric PM25 heavy
2024年1月17日 This study provides data for atmospheric particulate matter and heavy metal and arsenic pollution levels near coal gangue fields and provides a theoretical basis for air pollution 2022年11月25日 China’s total coal production in 2021 exceeded 413 billion tons, 52% of the world’s total Coal gangue, a solid waste of coal mining accounts for 15–20% of coal production, when directly discharged on the ground Underground Disposal of Coal Gangue Backfill in 2024年8月31日 Coal gangue, a byproduct of coal mining with massive generation, presents a major challenge for resource utilization In this study, SiO2 aerogel was successfully fabricated from coal gangue, via a facile and costeffective approach The aerogel boasts an intricate network framework structure internally and functions as a mesoporous material with GangueBased SiO2 Aerogel Used for Pb(II) Adsorption in2024年4月1日 When the rain washes the openair coal gangue, Finally, pay attention to the potential secondary pollution problems of coal gangue products, monitor the toxicological leaching characteristics of the products, and conduct strict control within clear industry standards to protect the environment and human safetyEnvironmental hazards and comprehensive utilization of solid waste coal
Wind speed effect on infraredimagebased coal and gangue
2024年11月1日 Coal remains one of the most widely utilized energy sources globally, and China is the country that produces and consumes the most coal (Zaghdoudi et al, 2023; Mushtaq et al, 2022)Behind the largescale production and consumption of coal, there are also many problems, such as low safety index for employees (Wang et al, 2023a), poor air quality (Nie et al, 2023), Combustion of Coal and Coal Gangue Wenkai Guo, Bing Chen, Guangyao Li, Mingyue Liu, Xiao Liu, deaths resulted from air pollution attributed to exposure to PM 25 pollution 24Ambient PM25 and Related Health Impacts of Spontaneous 2019年12月1日 This study aims to provide a highvalue and environmentally friendly method for the application of coalbased solid waste Modified fly ash/polyurethane (MFA/PU) and modified coal gangue powder Comprehensive utilization and environmental risks of coal gangueLeathen et al, 1953, first proposed that acid pollution in coal gangue is controlled by the activity of microorganisms [6] Nosa believes that AMD is formed by the oxidation ofEffect of Bactericides on Control of Acidification Pollution and
Assessment of heavy metal(oid) pollution and related health risks
2024年8月12日 The coal gangue dump may introduce heavy metal(oid)s (HMs) into surrounding agricultural soils, posing potential health risks to nearby communities This study evaluated heavy metal(oid) pollution 2024年11月20日 Air pollution kills an estimated seven million people worldwide every year WHO data shows that 9 out of 10 people breathe air containing high levels of pollutants WHO is working with countries to monitor air pollution and improve air qualityAir pollution World Health Organization (WHO)2021年7月28日 Coal gangue occupies large swathes of land the test soil was air dried and then passed through a 5 J et al Pollution of organic compounds and heavy metals in a coal gangue dump of Influence of coal gangue mulching with various thicknesses and 2024年8月12日 Assessment of heavy metal(oid) pollution and related health risks in agricultural soils surrounding a coal gangue dump from an abandoned coal mine in Chongqing, Southwest China August 2024 (PDF) Assessment of heavy metal (oid) pollution and related
Comprehensive utilization and environmental risks of coal gangue: A
2019年12月1日 The accumulation of considerable coal gangue not only occupies a great deal of land resource, but also results in serious environmental problems, eg, soil pollution, air pollution, and geologic hazards (Stracher and Taylor, 2004)2022年12月1日 Coal gangue, a waste produced during coal mining, has been regarded as the largest source of industrial waste in China It is estimated that the production of 1 t coal generates 01–025 t coal gangue [1], and the total stockpile of coal gangue exceeds 6 billion tons in China [2], [3]The coal gangue not only occupies agricultural land in large areas but triggers Exploring calcined coal gangue fines as the total substitute of fly 2021年6月1日 Ambient air pollution is produced by sources including vehicular traffic, coalfired power plants, hydraulic fracturing, agricultural production, and forest fires It consists of primary pollutants generated by combustion and secondary pollutants formed in the atmosphere from precursor gases Air pollution causes and exacerbates climate change, and climate change Ambient Air Pollution: Health Hazards to Children Pediatrics 2024年7月16日 Coal gangue is complex industrial solid waste produced in the process of coal mining and washing 6 The production of coal gangue accounts for 10–25% of total coal production 7 A large amount of accumulated coal gangue not only occupies land but also causes geological disasters, air pollution, environmental pollution, and other hazards 8,9 Therefore, Preparation of CalciumBased Coal Gangue Based on Response
(PDF) Ambient PM 25 and Related Health Impacts of Spontaneous
2021年4月4日 Coal and coal gangue spontaneous combustion (CGSC) occurs globally, causing significant environmental pollution (PM25) air pollution and related health impacts on a regional scale2024年11月1日 Using coal gangue as subgrade filler (CGSF) can address the accumulated issues of coal mine waste, but also save the constructing costs, which has the important ecological and engineering Investigating the compaction and the mechanical behaviors of coal Coal gangue, a byproduct produced during the coal processing, has a serious impact on the environment Using coal gangue as a fertilizer has been proven helpful in potentially reducing its environmental impact and improving its value In this study, the formation mechanism and influencing factors of coalganguebased silicon fertilizer was studied using XRD and FTIR Sustainable and clean utilization of coal gangue: activation and 2024年6月4日 The main hazards of coal gangue are environmental pollution, soil, and water pollution, and lead to geological disasters (1) Harm to the atmospheric environment The loose coal gangue piles in the open air will release a lot of dust under the action of wind There are many fine dust particles in the floating dust, but also contains heavy metalsCharacteristics of Coal Gangue and Present Situation and
Comparison of Modifiers for Coal Gangue Biochar ResearchGate
Comparison of Modifiers for Coal Gangue Biochar Modification to Improve the Absorption of Heavy Metals from Aqueous Solution Hikmatullah Ahmadi 1 , Yun Duan 1,* , Habibullah Sharifi 2 , Sayed The burden of air pollution tends to be greater across both low and middleincome countries for two reasons: indoor pollution rates tend to be high in lowincome countries due to a reliance on solid fuels for cooking, and outdoor air pollution Air Pollution Our World in DataThe enormous coal gangue hills occupy great a quantity of soil and cause serious environmental impacts such as soil pollution (heavy metals) and air pollution (spontaneous combustion) [2–4]CoFiring Zhundong Coal with Its Gangue: Combustion2021年4月4日 Coal and coal gangue spontaneous combustion (CGSC) occurs globally, causing significant environmental pollution However, its emissions are poorly quantified and are overlooked in global or regional air pollutant emission inventories in previous studies, resulting in the underestimation of its impacts on climate, environment, and public healthAmbient PM25 and Related Health Impacts of Semantic Scholar
The Sustainable Utilization of Coal Gangue in Geotechnical and
2022年4月6日 “Effect of coal gangue particle size on its leaching characteristics” In GeoCongress 2020: GeoSystems, Sustainability, Geoenvironmental Engineering, and Unsaturated Soil Mechanics, Geotechnical Special Publication 319, edited by J P Hambleton, R Makhnenko, and A S Budge, 107–1142018年8月19日 To evaluate the release and transformation characteristics of different forms of Cl in coal gangue during combustion, the effect factors of combustion temperature, combustion time and air flux Release and Transformation Characteristics of Modes of 2017年1月24日 Many studies have been conducted on the prevention and control of environmental pollution caused by separate storage of coal gangue The main options for remediating AMD are divided into active Vegetation recovery and groundwater pollution control of coal gangue 2022年11月25日 PDF China’s total coal production in 2021 exceeded 413 billion tons, 52% of the world’s total Coal gangue, a solid waste of coal mining accounts for Find, read and cite all the (PDF) Underground Disposal of Coal Gangue Backfill in China
Effect of Bactericides on Control of Acidification Pollution and
2020年8月19日 Oxidation of pyrite in the coal gangue dumps usually results in acidification and spontaneous combustion, causing many environmental problems such as air, soil, and water pollution2015年1月1日 Request PDF The environmental pollution and control of coal gangue spontaneous combustion in mining Coal gangue is the left solid waste in the process of coal mining, which is all kinds of The environmental pollution and control of coal gangue 2018年12月10日 Five coal gangue samples from the Du'erping Coal Mine in Shanxi, China, subjected to lowtemperature combustion, and their emitted gas samples were collected in situ at the combustion temperatures Distribution of polycyclic aromatic hydrocarbons（PAHs）in coal 2021年2月1日 Acid mine drainage (AMD) generated by acidic coal gangue has caused coal mine area environmental degradation Sulfatereducing bacteria (SRB) was used to inhibit the oxidation of metal sulfide Bioremediation of heavy metals pollution from acidic
Excess sulfur and Fe elements drive changes in soil and Nature
2020年6月26日 Coal gangue piles accumulate outside mines and can persist for years, negatively impacting the regional environment To determine the main cause of soil pollution at coal gangues, several coal 2023年9月1日 Coal is a major source of air pollution and harms public health Many studies have examined the impact of burning coal (Cesur et al, 2017, Clay et al, 2016, Beach and Hanlon, 2018, Johnsen et al, 2019), but few address the fact that producing coal also generates pollutionCoal mining generates pollution in three waysAir pollution and mortality impacts of coal mining: Evidence from 2022年6月26日 Coal gangue is a kind of industrial solid waste with serious ecological and environmental implications Producing concrete with coal gangue aggregate is one of the green sustainable development requirements This paper reviews the properties and preparation methods of Chinese gangue aggregate, studies the influence of gangue aggregate on Using Chinese Coal Gangue as an Ecological Aggregate and Its2023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
Effect of Bactericides on Control of Acidification Pollution and
2020年8月19日 Findings indicated that the addition of bactericide effectively inhibited the oxidation of Fe2+, preventing pH decreases and oxidationreduction potential increases Oxidation of pyrite in the coal gangue dumps usually results in acidification and spontaneous combustion, causing many environmental problems such as air, soil, and water pollution The 2022年1月24日 Air pollution caused by coal mining and associated industry, mainly coalfired power plant is harmful to health Environmental geochemists and health professionals call it "a voyage of discovery" that has skewed the three key pillars of sustainable development, namely the environment, social equality, and economic development (Stewart 2020)Seasonal pollution and risk assessment of heavy metals in 2023年9月12日 such as CO2, SO2, and NO2, causing air pollution Moreover, coal gangue combustion also generates a large amount of soot, which can be easily inhaled by humans, affecting human healthThe realtime detection method for coal gangue based on 2024年8月22日 The acid pollution produced from coal gangue piles is a global environmental problem Terminal technologies, such as neutralization, precipitation, adsorption, ion exchange, membrane technology, biological treatment, and electrochemistry, have been developed for acid mine drainage (AMD) treatment These technologies for treating pollutants with low Mechanism and In Situ Prevention of Oxidation in Coal Gangue
Study on the secondary oxidation behavior and microscopic
2024年5月1日 Coal is the most abundant and lowcost fossil fuel on earth With the emergence of new technologies such as coal gasification and clean coal utilization, the demand for coal in the world is increasing dramatically (Huang et al 2022; Xue et al 2023)Coal gangue (CG) is an associated product in the process of coal mining and washing, accounting for approximately