The accurate selection of a processing plant site can result in decreasing total mining cost. This problem can be solved by multi-criteria decision-making (MCDM) methods. This research introduces a new approach by integrating fuzzy AHP and gray MCDM methods to solve all decision-making problems. The approach is applied in the case of a copper mine area. The critical criteria are considered adja...

In this paper we study the long-term operation of an underground copper mining project. We model the project as a collection of blocks (minimal extraction units) each with its own mineral composition and extraction costs. The decision maker’s problem is to maximize the economic value of the project by controlling the sequence and rate of extraction as well as investing on costly capacity expans...

The purpose of this study was to evaluate the effect of copper and silver in the plants on the mining area and the ingredients of essential oils. Plants collected from the same family, but they were collected randomly from various regions. The concentration of heavy metal in plant samples collected from Veshnave, Qom, Iran have been determined by Flame Atomic Absorption Spectrometry (FAAS). The...

Background: This study was performed to evaluate the levels of heavy metals in the livers and kidneys of cattle, sheep and goats from a mining region in the west of Iran. Methods: In this cross-sectional study, 90 samples were collected from the livers and kidneys of cattle (n=30), sheep (n=30) and goats (n=30) from a slaughterhouse in Hamedan City, western Iran. Lead, cadmium, manganese, zi...

In a town located in a desert area of Northern Chile, gold and copper open-pit mining is carried out involving explosive processes. These processes are associated with increased dust exposure, which might affect children's respiratory health. Therefore, we aimed to quantify the causal attributable risk of living close to the mines on asthma or allergic rhinoconjunctivitis risk burden in childre...

This contribution analyzes water chemical data for the Choapa basin, North Central Chile, for the period 1980-2004. The parameters considered are As, Cu Fe, pH, EC, SO₄⁻², Cl⁻¹, and HCO[Formula: see text], from samples taken in nine monitoring stations throughout the basin. Results show rather moderate contents of As, Cu, and Fe, with the exception of the Cuncumén River and the Aucó creek, expl...

Copper ore is a non-renewable resource with lower grades, which means that the extraction of more rock material required to produce same amount copper, implying greater consumption materials, reagents, water, and energy. Since there copper sulfide present in nature, concentration using bubble flotation method will generate number tailings. This article discusses environmental issues resulting f...

Archaeological findings of malachite ore pieces, and objects made or copper, raise the question where raw material was mined. Research in this direction is a challenge modern applied mineralogy, especially concerning minerals from oxidation zone copper-bearing ores. According to recent studies field, complex research method, including impurity elements, will provide better distinction between d...

This research analyses the relationship and relative importance of financial factors on Peruvian mining copper companies´ share prices from 2010 to 2018. Voting common were focused book value, dividend per share, yield, price earnings, earnings roe employed as regressors. Fixed-effects regression was used, tests stationarity, distribution, specification harnessed. It found that yield had a posi...

this study has been carried out to determine the accumulation of heavy metals (arsenic, copper, lead, tin and zinc) in fish samples collected from former tin mining catchment. total eight types of fish family having fifteen different species are identified. cyperinidae is the most abundant family with eight different species found in the catchment. fish samples were analysed by using inductive...