Study of acid mine drainage production potential in flotation tailings of Sarcheshmeh porphyry copper mine

Shoja, Solmaz Esmaeily; Salari, Mohammad Mehdi

doi:10.1007/s12517-014-1761-8

Cited by 7 publications

(5 citation statements)

References 27 publications

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“…When ABA results suggest that the samples could be acid generating, they represent a detailed temporal observation of pH and metal concentrations and confirm that metal mobility is pH dependent [3,4]. These theoretical tests characterize the potential for chemical production after sulfide weathering, aiding in mining and recovery plans to minimize or completely eliminate potential acidic waters.…”

Section: Methodsmentioning

confidence: 71%

“…The pH values from the NAG test are indicators that can be used to sort the samples as acid-generating or non-acid-generating. Moreover, they assess the balance between the acid generation potential and the acid neutralization capacity [3,5,26].…”

Section: Methodsmentioning

confidence: 99%

“…The acid-base accounting (ABA) test is comprised of two different measurements: the determination of the Neutralization Potential (NP) and the calculation of Acidic Potential (AP) of the samples. The difference between the two values classifies the sample as potentially consuming or producing acid [3].…”

Section: Methodsmentioning

confidence: 99%

“…The primary AMD characteristics in polymetallic mines are the low pH values and high concentrations of sulfate and metal ions (Fe 2+ , Al 3+ , and Zn 2+ ), leading to the occurrence of AMD among mining operations in countries as diverse as Italy, South Africa, India, and Peru, and predominantly where mining operations expose sulfide minerals (pyrite, sphalerite, galena, and chalcopyrite) and oxidation leeches the sulfur into the waste water [2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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Minimally Active Neutralization of Acid Mine Drainage through the Monte Carlo Method

Castro Huaman,

Vasquez Olivera,

Aramburu Rojas

et al. 2023

Water

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The necessity of mining valuable metals must be balanced with the safe and effective disposal or remediation of the resulting waste. Water, one of our most valuable resources, is a major component of the mining process, and its post-operation storage often results in acid mine drainage. While many remediation methods have been studied, they have low economic feasibility, as minimally active methods alone were inadequate, and thus required additional, costly active methods for effective neutralization. This study looks to neutralize acid mine drainage with only minimally passive methods, through an optimized dosage of lime, fly ash, and aluminum hydroxide. Wastewater samples of pH 3.62 and 5.03, containing 1.36 and 2.21 percent sulfides, respectively, were experimentally treated, with the utilized dosage parameters generated using the Monte Carlo method for neutralizing acidity. The remediated water samples presented 0.01% and 0.16% sulfur content values, which corresponds to 99.3% and 92.8% reductions, respectively. These results present, for the first time, that minimally active methods could achieve a pH of 8.5 without active methods. While future studies should validate these results and provide a more complete characterization of the water samples, the major challenge of neutralization was addressed, and, thus, these results contribute process incentives for mining companies to economically remediate their waste water in order to safeguard their surrounding communities and return valuable water back to the water cycle.

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Section: Methodsmentioning

confidence: 71%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Minimally Active Neutralization of Acid Mine Drainage through the Monte Carlo Method

Castro Huaman,

Vasquez Olivera,

Aramburu Rojas

et al. 2023

Water

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“…Meanwhile, the tailings properties are not always unchanged during a long-term storage life. They are related to not only the mineral processing technology and means, but also the tailings chemical composition and hydrochemistry environment during the storage life 13 , 14 . Under the seepage action, several phenomena can be observed in the tailings, including flowing soil, contact flowing soil, piping, and contact scouring.…”

Section: Introductionmentioning

confidence: 99%

Seepage field characteristic and stability analysis of tailings dam under action of chemical solution

Wang

Tian

et al. 2021

Sci Rep

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As one of the important influencing factors of tailings dam stability, seepage field distribution within the dam is often affected by the tailings mineral characteristics. While the alkalinity or acidity of reservoir water and long term immersion will partially change the physical and mechanical properties of tailings. This study carried out permeability tests of tailings under the action of chemical solution. On this basis, a three dimensional (3D) model was constructed to analyze the velocity field and effective saturation within the tailings dam. Moreover, the dam section along the valley bottom was selected as the basic section in calculation, so as to analyze the changes in infiltration point and buried depth of the phreatic line under different permeability coefficient ratios. The results suggest that, under the action of acid-alkaline solution, the permeability coefficients of tailings reduced, and the stronger solution acidity-alkalinity resulted in the longer action time and more obvious change; under the action of chemical solution, the fluid flow velocity in the dam gradually decreased, and the drat beach length in the reservoir gradually shortened. Besides, when the upper layer permeability coefficients of tailings was lower than that of the lower layer, the dam phreatic line had a shallow buried depth and a high infiltration point.

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Environmental assessment of heavy metal pollution in the polymetallic district of Kef Oum Teboul (El Kala, Northeast Algeria)

2021

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Study of acid mine drainage production potential in flotation tailings of Sarcheshmeh porphyry copper mine

Cited by 7 publications

References 27 publications

Minimally Active Neutralization of Acid Mine Drainage through the Monte Carlo Method

Minimally Active Neutralization of Acid Mine Drainage through the Monte Carlo Method

Seepage field characteristic and stability analysis of tailings dam under action of chemical solution

Environmental assessment of heavy metal pollution in the polymetallic district of Kef Oum Teboul (El Kala, Northeast Algeria)

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