Prediction of Acid Mine Drainage (AMD) and Metal Release Sources at the Küre Copper Mine Site, Kastamonu, NW Turkey

Balcı, Nurgül; Demirel‐Floyd, Cansu

doi:10.1007/s10230-017-0470-4

Cited by 29 publications

(13 citation statements)

References 28 publications

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“…Our results show that biooxidation studies allow us to obtain results comparable to those achieved with other methodologies to predict acid drainage. In any case, this methodology is scarcely used to evaluate the risk of generating acid drainage and in many reviews it is not even included as a possible methodology, when in fact microorganisms have a preponderant and decisive role in the generation of acid drainage [ 30 , 42 , 43 , 44 ].…”

Section: Resultsmentioning

confidence: 99%

Influence of Extremophiles on the Generation of Acid Mine Drainage at the Abandoned Pan de Azúcar Mine (Argentina)

et al. 2021

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The risk of generation of acid drainages in the tailings of the Pan de Azúcar mine that closed its activities more than three decades ago, was evaluated through biooxidation studies using iron- and sulfur-oxidizing extremophilic leaching consortia. Most of tailings showed a high potential for generating acid drainage, in agreement with the results from net acid generation (NAG) assays. In addition, molecular analysis of the microbial consortia obtained by enrichment of the samples, demonstrated that native leaching microorganisms are ubiquitous in the area and they seemed to be more efficient in the biooxidation of the tailings than the collection microorganisms. The acid drainages detected at the site and those formed by oxidation of the tailings, produced a significant ecotoxicological effect demonstrated by a bioassay. These drainages, even at high dilutions, could seriously affect a nearby Ramsar site (Laguna de Pozuelos) that is connected to the Pan de Azúcar mine through a hydrological route (Cincel River).

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Section: Resultsmentioning

confidence: 99%

Influence of Extremophiles on the Generation of Acid Mine Drainage at the Abandoned Pan de Azúcar Mine (Argentina)

et al. 2021

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“…Then, the Erlenmeyer flasks were placed in a shaker at 28 • C and 180 rpm for the biomineralization reaction. Sampling was performed and parameters were calculated according to treatment (1). Treatment (3) ("limited O 2 supply at 36 h") involved biomineralization reactions according to treatment (1) for assessing the oxidation efficiency of the Fe 2+ in the 9K-FeSO 4 -A. ferrooxidans system.…”

Section: Effect Of the O 2 Supply Time On The A Ferrooxidans-mediated Biomineralizationmentioning

confidence: 99%

“…When exposed to air and water, sulfidic wastes undergo atmospheric and aqueous oxidation and tend to generate acid mine drainage (AMD), which often contains elevated concentrations of soluble Fe (Fe 2+ and Fe 3+ ), SO 4 2− and heavy metals [1,2]. The oxidation of pyrite to sulfate in AMD systems is described by the following two end-member reactions that utilize either O 2 or Fe 3+ as oxidants [3].…”

Section: Introductionmentioning

confidence: 99%

The Important Role of Dissolved Oxygen Supply Regulated by the Hydraulic Shear Force during the Biosynthesis of Iron Hydroxysulfate Minerals

Yang

Wang

et al. 2020

Minerals

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The severity of environmental pollution from acid mine drainage (AMD) is increasingly garnering attention. In this study, the effects of hydraulic shear forces (achieved by regulating the shaking table’s rotation speed) on Fe2+ bio-oxidation and Fe3+ hydrolytic mineralization in an acidic 9K medium-FeSO4-Acidithiobacillus ferrooxidans system (simulated AMD) are investigated. Results reveal that a higher shaking speed favors a higher oxidation rate of Fe2+, whereas a very low or high shaking speed restricts the removal of Fe3+. Shaking table rotation speeds of 120–180 rpm were preferred for biomineralization treatment in the simulated AMD. As the initial concentration of Fe2+ in the system decreased from 9.67 to 0 g/L in 40 h, the dissolved O2 (DO) in the solution dropped to its lowest concentration after 20 h and then increased to its initial level between 40 and 120 h. However, the corresponding total Fe (TFe) precipitation efficiency increased with the increasing mineralization time after 40 h. The effect of O2 supply time on biomineralization revealed that DO was mainly used in Fe2+ bio-oxidation. After Fe2+ was completely oxidized by A. ferrooxidans, the precipitation efficiency of TFe was independent of the O2 supply.

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“…. In the study of Balcı and Demirel (2018) on the prediction of AMD in Küre copper mine, they showed that high Fe, Cu, Zn, Ni, Pb, Cd, Co, and As concentrations were caused by pyrite-rich wastes. In addition, the researchers concluded that the main source of AMD and metal contamination in the region is ore-rich wastes.…”

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confidence: 99%

Assessment of acid mine drainage formation using geochemical and static tests in Mutki (Bitlis, SE Turkey) mineralization area

Gücer¹,

Alemdağ²,

Akaryalı³

2020

Turkish J Earth Sci

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In this study, geochemical analyses, as well as short-term contact leaching and acid-base accounting tests, were carried out to determine the occurrence of acid mine drainage (AMD) by static tests in the ore stockpile areas at the Mutki Cu-Fe-Cr deposit (Bitlis, SE Turkey). According to the short-term contact leaching tests, the high enrichment in trace element concentrations in ore-bearing samples, especially in potentially toxic metals such as Cr, Cu, Mn, and Zn, were directly related to sulphide and oxide mineralizations. The pH (3.27–4.05) values of water samples, together with the classification of the intracontinental water resources, indicated that the water quality is the fourth class. Leaching tests, paste pH (3.42–4.46) and sulphide-sulphur (3.9–13.4 wt%) values also suggested that there was AMD production potential in the mineralization area. The AMD production potential was supported by the high mobility of several elements, such as Fe, Mg, Cr, As, Cu, S, and Zn. In ore samples, net neutralization potential (NNP) and net potential ratio (NPR) values were less than –20 kg CaCO3/t and 1, respectively. The basalts forming the basement rock of the stockpile area were characterized by permeable to slightly permeable properties that potentially increase the contamination risk of the groundwater due to seepage in the stockpile area. In order to prevent seepage in the stock area, geomembrane (synthetic waterproofing covers) should be laid at the base to ensure impermeability. The improvements planned in the stock area were modeled by the finite element method and seepage discharges at a depth of 5 m were determined as 1.34 × 10–17m3/s. Thanks to these planned applications, surface and groundwater pollution can be efficiently prevented.

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Prediction of Acid Mine Drainage (AMD) and Metal Release Sources at the Küre Copper Mine Site, Kastamonu, NW Turkey

Cited by 29 publications

References 28 publications

Influence of Extremophiles on the Generation of Acid Mine Drainage at the Abandoned Pan de Azúcar Mine (Argentina)

Influence of Extremophiles on the Generation of Acid Mine Drainage at the Abandoned Pan de Azúcar Mine (Argentina)

The Important Role of Dissolved Oxygen Supply Regulated by the Hydraulic Shear Force during the Biosynthesis of Iron Hydroxysulfate Minerals

Assessment of acid mine drainage formation using geochemical and static tests in Mutki (Bitlis, SE Turkey) mineralization area

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