نتایج جستجو برای: darezar copper mine

تعداد نتایج: 105523  

Journal: :Electronic Notes in Discrete Mathematics 2008
Andres Weintraub Marianela Pereira Ximena Schultz

Mine planning models have proved to be very effective in supporting decisions on sequencing the extraction of material in copper mines. These models have been developed for CODELCO, the Chilean state copper mine and used successfully. Here, we wish to develop a corporate model, including all mines of CODELCO. The original models are extremely large MIPs. In order to run a global model, the orig...

2015
S. R. Bansod P. B. Nandkar

The process of mining affects all the components of environment and ecology. resulting in different types of pollution problems like soil, surface and ground water pollution. Acid Mine Drainage (AMD) and mine spoil dumps may contain an elevated amount of Heavy metals. Physiological effect of heavy metal toxicity on algal species like Chlorella vulgaris, Scenedesmusbijugatus, Oscillatoriaamphibi...

Journal: :international journal of environmental research 0
b. balabanova faculty of agriculture, goce delčev university, pob 201, 2000 štip, macedonia t. stafilov institute of chemistry, faculty of science, sts. cyril and methodius university, pob 162, 1000 skopje, macedonia r. šajn geological survey of slovenia, dimičeva ulica 14, 1000 ljubljana, slovenia k. baèeva institute of chemistry, faculty of science, sts. cyril and methodius university, pob 162, 1000 skopje, macedonia

lichen species (hypogymnia physodes and evernia prunastri) were used for biomonitoring thepossible air pollution with heavy metals in the vicinity of copper mine in the eastern part of the republic ofmacedonia. the contents of 18 elements were analysed by icp-aes and etaas techniques. for dataprocessing basic statistical methods and multivariate exploratory (factor and cluster analysis) techniq...

2015
Danielle M. Haak Nancy A. Auer Michael Gibson

Impact of copper mine tailings (stamp sand) on survival and development of aquatic organisms near Gay,

2015
GORAN K. TASEV

Several industrial pollution sources at the territory of the Republic of Macedonia, were studied, one Pb-Zn mine with mill, one copper mine with mill and copper leaching facility, as well as one former Pb-Zn smelting facility near the city of Veles and one Fe-Ni smelting facility near the city of Kavadarci. The concentrations of heavy metals at Veles hot-spot were in the range: 20÷1823 mg kg1Pb...

Journal: :Applied and environmental microbiology 2006
Kevin B Hallberg Kris Coupland Sakurako Kimura D Barrie Johnson

The microbial composition of acid streamers (macroscopic biofilms) in acidic, metal-rich waters in two locations (an abandoned copper mine and a chalybeate spa) in north Wales was studied using cultivation-based and biomolecular techniques. Known chemolithotrophic and heterotrophic acidophiles were readily isolated from disrupted streamers, but they accounted for only <1 to 7% of the total micr...

2002
Chris Hayward Mary A. Lowery

Sponsored by Defense Threat Reduction Agency Contract DSWA01-98-C-0176 The Mine The cooperating mine was the Morenci Mine operated by Phelps-Dodge in SE Arizona. The scale of the operation is illustrated below. The mine produces over 25% of all US copper. Three to five blasts are detonated daily. During July and August, 31% of the events in the USGS Mine Event List were from this mine. Regional...

2013
Jose Perez Ismael Soto Miguel Alfaro Francisco Cubillos Pei Xiao

This paper introduces an integrated design for realtime plant modeling at a copper mine, using Support Vector Machines (SVM), Neural Networks, and new technologies such as Machine-to-Machine (M2M) and Cloud Computing with an Android client. This solution was designed for a plant inside a copper mine which cannot tolerate interruption and for which their in situ modeling, in real time, is an ess...

حیدریان شهری, محمدرضا , ملک‌زاده شفارودی, آزاده , کریم‌پور , محمدحسن ,

: KC5 copper exploration prospect is located 80 Km to the northwest of Bardaskan and 4 Km to the Northeast of Dahaneh Siah copper mine in Khorasan Razavi. KC5 and Dahaneh Siah areas belong to Sabzevar geological Zone. Copper mineralization is observable mainly as secondary minerals such as Malachite and Chlorite which fills joints and fractures in a faulty contact at the boundary of the volcani...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2005
ramdane salhi

the main aim of this research is to determine optimal leaching conditions; eh, ph and complexing agent concentrations, for recovery of copper from hydroxide sludges such as those produced by electroplating shops, metal finishers, treatment of acid mine drainage, and industrial wastewater in general. this has been preceded by a theoretical approach and numerical and computer calculation. potenti...

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