Toxic mine drainage from Asia’s biggest copper mine at Malanjkhand, India

Pandey, Piyush Kant; Sharma, Richa; Roy, Manju; Pandey, Madhurima

doi:10.1007/s10653-006-9079-4

Cited by 53 publications

(11 citation statements)

References 3 publications

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“…Exposure of ore waste and flotation tailing to air and moisture leads to slow transformation of copper sulfide into copper oxide and sulfuric acid. This acid can dissolve heavy metals found in waste rock and tailings such as Pb, Zn, As, Se, Hg, and Cd (Pandey et al 2007). The fine particles from soil surface carried by the winds are introduced into the atmosphere (Kabata-Pendias and Pendias 2001).…”

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confidence: 99%

Distribution of Chemical Elements in Attic Dust as Reflection of Their Geogenic and Anthropogenic Sources in the Vicinity of the Copper Mine and Flotation Plant

Balabanova

Stafilov

Šajn

et al. 2010

Arch Environ Contam Toxicol

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The main aim of this article was to assess the atmospheric pollution with heavy metals due to copper mining Bučim near Radoviš, the Republic of Macedonia. The open pit and mine waste and flotation tailings are continually exposed to open air, which leads to winds carrying the fine particles into the atmosphere. Samples of attic dust were examined as historical archives of mine emissions, with the aim of elucidating the pathways of pollution. Dust was collected from the attics of 29 houses, built between 1920 and 1970. Nineteen elements (Ag, Al, As, Ba, Ca, Cd, Co, Cr, Cu, Li, Fe, K, Mg, Mn, Na, Ni, Pb, Sr, and Zn) were analyzed by atomic emission spectrometry with inductively coupled plasma. The obtained values of the investigated elements in attic dust samples were statistically processed using nonparametric and parametric analysis. Factor analysis revealed three factors governing the source of individual chemical elements. Two of them grouping Ca, Li, Mg, Mn, and Sr (Factor 1) and Co, Cr, and Ni (Factor 2) can be characterized as geogenic. The third factor grouping As, Cu, and Pb is anthropogenic and mirrors dust fallout from mining operation and from flotation tailings. Maps of areal deposition were prepared for this group of elements, from which correlation of these anthropogenic born elements was confirmed.

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confidence: 99%

Distribution of Chemical Elements in Attic Dust as Reflection of Their Geogenic and Anthropogenic Sources in the Vicinity of the Copper Mine and Flotation Plant

Balabanova

Stafilov

Šajn

et al. 2010

Arch Environ Contam Toxicol

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“…Sulfide oxidation has the potential to produce sulfate, which may turn into sulfuric acid when it is dissolved by rain, leading to the production of acidity drainage. Subsequently, acid drainage can dissolve heavy metals (e.g., lead, zinc, copper, arsenic, selenium, mercury, and cadmium) stored in waste rock and tailings into surface runoff and ground water (Nriagu 1978;Smith and Skema 2001;Pandey et al 2007;Akabzaa et al 2007;Bennett 1969). Consequently, high metal concentrations within AMD may, in turn, cause severe toxicological effects on aquatic ecosystems (Hazen et al 2002).…”

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confidence: 99%

Assessing the acidic potential of waste rock in the Akara gold mine, Thailand

et al. 2009

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Acid mine drainage (AMD) is the environmental issue that generates the greatest public concern regarding the mining industry. Thus, characterization of mine waste rock according to acid generation potential is necessary for mining operations to ensure proper waste rock storage and to avoid future adverse environmental effects. Therefore, this study was conducted to estimate the potential of AMD generation in the largest operating gold mine in Thailand by using acid base accounting and net acid generation tests. Representative samples of six types of waste rock classified by mining geologists for mineral processing and waste dumping were collected for this study: volcanic clastic, porphyritic andesite, andesite, silicified tuff, silicified lapilli tuff, and sheared tuff. Under various conditions, experimental results indicate that only silicified lapilli tuff and shear tuff are potentially acid-forming materials. The results indicate that AMD generation may possibly occur a long time after mine closure due to the lag time of the dissolution of acid-neutralizing sources. Acidic generation from some waste rocks may occur in the future based on environmental conditions, particularly the oxidation of sulphide minerals by the combination of oxygen and water. Therefore, a proper design for waste rock dumping and storage is necessary to reduce the risk of AMD generation in future. It is advisable to install a surface management system to control the overland flow direction away from the waste dump area and tailing storage facility and to install a second water storage pond next to the main storage pond to store the spilled water during storms and the rainy season. A water quality monitoring plan that focuses on disturbed areas such as water storage ponds and mine pits should be put in place.

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“…The granitic rocks extend in creation from a biotite granite to quartz diorite and they are very kaolinised, seriticised and saussuritised in the mineralised zone. The quartz reefs, connected with the rocks have a restricted copper mineralization [10].…”

Section: B Description Of the Rock Formationmentioning

confidence: 99%

Blast-induced ground vibration management in deep open pit mines using GIS - A case study

Balamadeswaran¹,

Mishra²,

Sen³

et al. 2016

Proceedings of the Conference on Recent Advances in Rock Engineering (RARE 2016)

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Abstract-Blasting is considered to be one of the significant unit operations in the open pit mines for achieving higher production and productivity. As the blasting operation has been carried out frequently in deep open pit mines, the disturbance in the form of structural damages or psychological issues are also gradually exaggerated with increasing depth and change in the rock characteristics. Safety in terms of environmental effects is one of the significant aspects of a good blasting which can be accomplished possibly through advanced blasting practices and innovative approaches. Generally, the ground vibrations arising from the blasting operation is one of the fundamental reasons for creating unpleasant environmental issues for the mines situated near the population area or any sensitive structures. Similarly, the control of vibration is much helpful to deep open pit operators to achieve their operational objectives closer to the final limits such as wall control and sensitive infrastructure like crusher plant, shaft, buildings, pump house, pipelines and haul roads. Hence, prediction of the ground vibration components is very crucial for designing the safe blast. The intensity of the blastinduced ground vibration is affected by the parameters such as the physical and mechanical properties of the rock mass, characteristics of explosives and the blast design. Based on the plethora of research activity on the subject, different criteria have been designed to specify limits of blast-induced ground vibrations. In spite of the significant research, the criteria vary from one place to another and are not foolproof. This is primarily because of varied rock and blasting conditions. The rock characteristics can vary greatly from one part of a bench to another part, and also can have the directional variability according to discontinuities in the geological formation and structure. In this study, field measurements were carried out at the different benches of a deep open pit copper mine where dissimilar structural lithological characteristics exists and their results were analysed to evaluate blast-induced vibrations according to the type of rock formation. Finally, a thematic mapping indicating the blast-induced vibration level (ppv) for the different rock formations incorporating the structural geological features are prepared using Geographical Information System (GIS) technique. This thematic mapping can be used as effective tool in providing an interesting insight into the influence of rock characteristics on blast-induced vibration level while designing a blast in order to protect the pit slopes and surrounding structures in future.

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Toxic mine drainage from Asia’s biggest copper mine at Malanjkhand, India

Cited by 53 publications

References 3 publications

Distribution of Chemical Elements in Attic Dust as Reflection of Their Geogenic and Anthropogenic Sources in the Vicinity of the Copper Mine and Flotation Plant

Distribution of Chemical Elements in Attic Dust as Reflection of Their Geogenic and Anthropogenic Sources in the Vicinity of the Copper Mine and Flotation Plant

Assessing the acidic potential of waste rock in the Akara gold mine, Thailand

Blast-induced ground vibration management in deep open pit mines using GIS - A case study

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