نتایج جستجو برای: tailings dam

تعداد نتایج: 15122  

2001
C. P. David

A mine-tailings spill occurred on the island of Marinduque, Philippines, on 24 March 1996. Originating from the Marcopper Mine, tailings sludge flowed down the Boac River abruptly and during subsequent storm events. Most of the tailings material has since accumulated in the nearshore environment along the western coast of the island. Nineteen sediment cores were collected from this site and ana...

Journal: :Journal of Hydroinformatics 2023

Abstract The Life Safety Model (LSM) is an agent-based model which assists with emergency planning and risk assessments for floods dam failures by providing estimates of fatalities evacuation times. LSM represents the interactions agents (i.e. people, vehicles, buildings) floodwater. helps to increase accuracy loss life times these events taking into account a number parameters are not describe...

2006
Mariza Franklin Horst Fernandes George Yeh José Paulo S. de Azevedo

The first uranium production center in Brazil began operation in 1982. After 13 years of a non-continuous operation, the mining activities were suspended definitively. Uranium was extracted by open pit mining. Operations gave rise to approximately 12.4×10 m of waste rock, while the mill process generated a volume of approximately 2.39×10 m of tailings. Regardless the fact that some studies deve...

Journal: :Reviews on environmental health 2014
Michael Stovern Eric A Betterton A Eduardo Sáez Omar Ignacio Felix Villar Kyle P Rine Mackenzie R Russell Matt King

Mining operations are potential sources of airborne particulate metal and metalloid contaminants through both direct smelter emissions and wind erosion of mine tailings. The warmer, drier conditions predicted for the Southwestern US by climate models may make contaminated atmospheric dust and aerosols increasingly important, due to potential deleterious effects on human health and ecology. Dust...

2018
Dorota Kasowska Krzysztof Gediga Zofia Spiak

Copper ore mining and processing release hazardous post-flotation wastes that are difficult for remediation. The studied tailings were extremely rich in Cu (1800 mg kg-1) and contaminated with Co and Mn, and contained very little available forms of P, Fe, and Zn. The plants growing in tailings were distinctly enriched in Cu, Cd, Co, Ni, and Pb, and the concentration of copper achived the critic...

2017
Yanlong Zhou Hongwei Deng Jixiang Liu Mostafa Fayek

The utilization of cemented tailings/paste backfill (CPB) by the mining industry is becoming increasingly important. However, it has been difficult to analyze the economic usage of CPB for fine unclassified tailings. Therefore, the physical and chemical properties of fine unclassified tailings, sampled from the Sijiaying Mine, were first analyzed in this study. After this, active excitation of ...

2013
Erika Levei Tiberiu Frentiu Michaela Ponta Claudiu Tanaselia Gheorghe Borodi

UNLABELLED BACKGROUND The objective of this study was to examine the potential environmental risk of tailings resulted after precious and base metal ores processing, stored in seven impoundments located in the Aries river basin, Romania. The tailings were characterized by mineralogical and elemental composition, contamination indices, acid rock drainage generation potential and water leachab...

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