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effects on mining gypsum
Environmental impacts of the gypsum mining operation at Maqna
2001年8月11日 Environmental impacts of the gypsum mining operation at Maqna area, Tabuk, Saudi Arabia Cases and Solutions Published: 11 August 2001 Volume 41 , pages 209–218, ( 2001 ) Cite this article Download PDF Environmental Geology Abbas Al-Harthi
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Environmental risk assessment of industrial byproduct gypsum
Gypsum SamplesSequential Batch Extraction LeachingNumerical Simulation of Heavy Metal Element MigrationInitial Values and Boundary ConditionsAssuming that the goaf is full of water, the gravitational potential energy of the mine water produces a pressure head on the floor. Combined with the experimental results of the metal element release patterns in gypsum, Zn is taken as an example for the numerical simulation. The initial value of the inflow concentration is the final leaching conce...
The impact of gypsum mine water: A case study on ... - ScienceDirect
2014年6月1日 • Our findings suggest toxic potential of gypsum mine wastewaters. • The Gammarus specimens showed elevated total tissue metal levels. • Strontium uptake
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Gypsum mining can lead to various environmental impacts. The extraction process often involves clearing large areas of land, resulting in habitat destruction and loss of
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Gypsum mining spoil improves plant emergence and growth in
2022年8月11日 We assessed the effects of gypsum mining spoil (GS) on PHE immobilization in soils and on plant emergence, survival, and biomass production by
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Socio-economic and Environmental Impact Analysis of Khothagpa
The study looks at the economic, social and environmental impacts of the gypsum mining on people living nearby as well as at the national level. However, given the non
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[The analysis of health effects of exposure to occupational hazards
2019年10月20日 Results: The main occupational hazards of gypsum miners were gypsum dust and noise. The time-weighted average concentration of 8 h in the workplace was
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Environmental impacts of the gypsum mining operation at Maqna
Keywords: Gypsum Anhydrite Cement Quarrying Pollution and environmental geology Saudi Arabia. The impacts of quarrying of the gypsum deposits on the environment at
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Experimental investigation into the effects of composition and ...
2021年7月15日 The present work investigated the differences in the composition and internal microstructure of four types gypsum rock—fiber gypsum, transparent gypsum,
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Multiple mining impacts induce widespread changes in ecosystem
2017年9月5日 Only the most abundant taxa with the proportional abundance of >4% is shown.The solid horizontal line indicates the beginning of the mining, and the dashed
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Environmental Impacts: Local Perspectives of
2020年7月8日 Despite its contributions to the development of the country, the mining sector in Sierra Leone, has been attributed to a multitude of impacts on the environment. This article focuses on assessing the
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Gypsum: Properties, production and applications - ResearchGate
2011年1月1日 The properties of gypsum are soft, perfect cleavage, specific gravity and low harness. It's extremely soft, and can be easily scraped with a fingernail and has a Mohs hardness number of 2. Gypsum ...
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History Of Phosphate Mining In Florida Fraught With Peril
2021年6月16日 There are 27 phosphate mines in Florida, covering nearly half a billion acres. Phosphate pebbles were found in the Peace River in the 1880's, setting off a mining rush where Hardee, Hillsborough, Manatee, and Polk counties meet. "Bone Valley" was named for the large number of prehistoric fossils found there.
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Experimental investigation into the effects of composition and ...
2021年7月15日 Gypsum has long been considered an important raw material for engineering construction. Based on its microstructure and component, gypsum rocks can be classified into several kinds. For the mining of underground gypsum, room and pillar mining method is commonly adopted to obtain by “retaining pillars and mining room” to
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Experimental investigation into the effects of composition and
2021年7月15日 Experimental process. To study the effects of microstructure and composition on the tensile strength of gypsum rocks, X-ray fluorescence spectrometry (XRF), elementary analysis and X-ray ...
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Effect of Ball Milling Time on the Performance of Phosphorous
2022年1月11日 The use of phosphogypsum to prepare phosphorus building gypsum (PBG) is of great value to the resource utilization of phosphogypsum. In this study, PBG was ball-milled to obtain phosphorus building gypsum with good performance, which can meet the requirements of the Chinese standards for first-class building gypsum. Meanwhile,
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Hazards identified and the need for The Author(s) 2015 health risk ...
memory loss, neuromuscular effects, headaches and cognitive and motor dysfunction.23 In one study on Hg exposure in a gold mining community, 50% of urine samples exceeded the guideline among individ-uals that were not occupationally exposed.24 Hazards from minerals and contaminants in the minerals According to the Mining Intelligence
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Chemical Information Review Document for Synthetic and
Synthetic and Naturally Mined Gypsum (Calcium Sulfate Dihydrate) [CAS No. 13397-24-5] Supporting Nomination for Toxicological Evaluation by the National Toxicology ... the potential for adverse long-term health effects from exposure to gypsum dust. Gypsum is widely used in building materials and human exposure occurs when gypsum is mined, ...
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2023年10月26日 Research demonstrating the effects of using agricultural gypsum on productivity is mainly focused on grains. Zandoná et al. [ 28 ] evaluated, during the same agricultural year, the application of six doses of agricultural gypsum in soybeans and corn and found that, in both cultures, there was an increase in productivity up to the application
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Gypsum Mining in Southern Ontario - by Steve Shikaze
2023年12月15日 At a recent coffee meeting with a grad student friend of mine, I learned that gypsum mining has a rich history in southern Ontario. Specifically, in the lower Grand River watershed, gypsum has been mined for about 200 years! Gypsum is a soft mineral that is used primarily in the construction industry for plaster or wallboard and as a
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