arsenic stabilization mining
arsenic stabilization mining
Zhengzhou, Henan China
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arsenic stabilization mining

(PDF) Stabilization of arsenic in the mining and ...

Arsenic is a major contam inant in the non -ferrous mining and extractive metallurgical industries. and thus its dispo sal is one o f the most i mportant environ mental is sues.

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Arsenic stabilization in mine tailings using nano-sized ...

2012-2-1  The arsenic immobilization efficiency and mobility of SDS-nMGT proved that it is an outstanding material for arsenic stabilization in mine tailings. In addition, SDS-nMGT can be applied to remediate arsenic in aquatic systems after passing through soil above the groundwater. Furthermore, this technology also has a potential application for a ...

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Arsenic stabilization in mine tailings using nano-sized ...

Highlights Nano-sized magnetite and zero valent iron coated by sodium dodecyl sulfate (SDS-nMGT and SDS-nZVI) were synthesized. SDS-nMGT and SDS-nZVI particles change arsenic speciation in mine tailings from sorbed to associated with iron oxide phase. Leachability of arsenic from mine tailings by TCLP decreased after stabilization with SDS-nMGT and SDS-nZVI. Surface coating with SDS

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(PDF) Stabilization and encapsulation of arsenic-/antimony ...

2021-7-30  Stabilization and encapsulation of arsenic-/antimony-bearing mine waste: Overview and outlook of existing techniques July 2021 Critical Reviews in Environmental Science and Technology

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Cement based solidification/stabilization of arsenic ...

Cement was used to solidify/stabilize the abandoned mine tailings contaminated primarily with arsenic (up to 88mg/kg) and lead (up to 35mg/kg). Solidified/stabilized (s/s) forms with a range of cement contents, 5-30wt%, were evaluated to determine the optimal binder content. Unconfined compression s

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Stabilization of Available Arsenic in Highly Contaminated ...

2002-12-3  Arsenic stabilization in mine tailings using nano-sized magnetite and zero valent iron with the enhancement of mobility by surface coating. Journal of Geochemical Exploration 2012, 113, 124-129. DOI: 10.1016/j.gexplo.2011.07.002. Myoung-Soo Ko, Ju-Yong Kim, Sunbeak Bang, Jin-Soo Lee, Ju-In Ko, Kyoung-Woong Kim.

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(PDF) Stabilization of the As-contaminated soil from the ...

The stabilization efficiencies of arsenic (As) in contaminated soil were evaluated using various additives such as limestone, steel mill slag, granular ferric hydroxide (GFH), and mine sludge ...

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Stabilization of the As-contaminated soil from the metal ...

The stabilization efficiencies of arsenic (As) in contaminated soil were evaluated using various additives such as limestone, steel mill slag, granular ferric hydroxide (GFH), and mine sludge collected from an acid mine drainage treatment system. The soil samples were collected from the Chungyang ar

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Stabilization of the As-contaminated soil from the metal ...

2011-8-9  The stabilization efficiencies of arsenic (As) in contaminated soil were evaluated using various additives such as limestone, steel mill slag, granular ferric hydroxide (GFH), and mine sludge collected from an acid mine drainage treatment system. The soil samples were collected from the Chungyang area, where abandoned Au–Ag mines are located. Toxicity characteristic leaching procedure ...

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Developments in Arsenic Management in the Gold

2016-1-1  Gold mining and processing operations are important sources of arsenic release to the environment. This chapter focuses on the magnitude of the arsenic problem in gold processing and the methods used to mitigate the risk to the environment. The latest technologies for arsenic stabilization are presented and discussed.

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(PDF) Stabilization of the As-contaminated soil from the ...

The stabilization efficiencies of arsenic (As) in contaminated soil were evaluated using various additives such as limestone, steel mill slag, granular ferric hydroxide (GFH), and mine sludge ...

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Stabilization and encapsulation of arsenic-/antimony ...

Stabilization and encapsulation of arsenic-/antimony-bearing mine waste: Overview and outlook of existing techniques Esther Alvarez-Ayuso Department of Environmental Geochemistry, IRNASA (CSIC ...

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Stabilization methods for the treatment of weathered ...

2021-2-10  Stabilization mechanism of arsenic in mine waste using basic oxygen furnace slag: the role of water contents on stabilization efficiency. Chemosphere, 208 (2018), pp. 916-921. Article Download PDF View Record in Scopus Google Scholar. Ladeira and

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(PDF) Enhancing Arsenic Solidification/Stabilisation ...

2021-9-1  Arsenic (As) is a toxic and carcinogenic element, which can cause severe effects on human health, such as skin, lungs, kidney and liver cancers, even at a low concentration [ 1

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Stabilization of arsenic in waste slag using FeCl 2 or ...

2.2.1 The stabilization method. Each 10.00 g arsenic waste slag sample was weighed and then placed in a 100 mL beaker. According to the As content provided in Tables 1 and 2, a certain quality of the stabilizing agent at different Fe: As molar ratios was added to the beaker, and the solid–liquid ratio was controlled at 3: 1. The pH was rapidly adjusted to the determined value using a 40% H 2 ...

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Mechanisms at Different pH for Stabilization of Arsenic in ...

The mechanisms at different pH for the stabilization of arsenic (As) in mine tailings (MTs) using steelmaking slag were investigated using laboratory experiments. Two types of steelmaking slag were used in the experiments. Ca-slag has high pH and high calcium oxide content due to its short period of aging. In contrast, Fe-slag is oxidized for a long time and is richer in Fe than in Ca.

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Solidification/Stabilization of Arsenic-Containing ...

2021-10-7  Feature Papers represent the most advanced research with significant potential for high impact in the field. Feature Papers are submitted upon individual invitation or recommendation by the scientific editors and undergo peer review prior to publication.

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Trends and TreaTmenT of ImpurITIes In Copper mInIng

2021-11-10  (PLS) to arsenic stabilization stage Chuquicamata, Ventanas, Potrerillos Flue dusts: 40,329 tonnes Chuquicamata Acid effluent: 22,889 m3 Dilution water Sulphuric acid Flue dust Re˜nery and acid plant ef˚uents ecometales: Environmental solutions for the mining industry EcoMetales plant Flue dust leaching process

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Stabilization of Available Arsenic in Highly Contaminated ...

2002-12-3  Arsenic stabilization in mine tailings using nano-sized magnetite and zero valent iron with the enhancement of mobility by surface coating. Journal of Geochemical Exploration 2012, 113, 124-129. DOI: 10.1016/j.gexplo.2011.07.002. Myoung-Soo Ko, Ju-Yong Kim, Sunbeak Bang, Jin-Soo Lee, Ju-In Ko, Kyoung-Woong Kim.

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Stabilization of the As-contaminated soil from the metal ...

2011-8-9  The stabilization efficiencies of arsenic (As) in contaminated soil were evaluated using various additives such as limestone, steel mill slag, granular ferric hydroxide (GFH), and mine sludge collected from an acid mine drainage treatment system. The soil samples were collected from the Chungyang area, where abandoned Au–Ag mines are located. Toxicity characteristic leaching procedure ...

More

Arsenic stabilization in mine tailings using nano-sized ...

2019-1-20  Arsenic stabilization in mine tailings using nano-sized magnetite and zero valent iron with the enhancement of mobility by surface coating Ki-Rak Kim a, Byung-Tae Lee a,⁎, Kyoung-Woong Kim a,b,⁎⁎ a School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 500-712, Republic of Korea b International Environmental Research Center (IERC ...

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Stabilization of arsenic in waste slag using FeCl2 or ...

2017-12-4  With the aim of stabilizing arsenic pollution in mine tailing, FeCl2 and FeCl3 were chosen as stabilizers. The changes in pH, speciation, and leaching concentration of arsenic were analyzed. The stabilization mechanism of the FeCl2 and FeCl3

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(PDF) Stabilization of the As-contaminated soil from the ...

The stabilization efficiencies of arsenic (As) in contaminated soil were evaluated using various additives such as limestone, steel mill slag, granular ferric hydroxide (GFH), and mine sludge ...

More

(PDF) Enhancing Arsenic Solidification/Stabilisation ...

2021-9-1  Arsenic (As) is a toxic and carcinogenic element, which can cause severe effects on human health, such as skin, lungs, kidney and liver cancers, even at a low concentration [ 1

More

Stabilization of Available Arsenic in Highly Contaminated ...

2002-12-3  Arsenic stabilization in mine tailings using nano-sized magnetite and zero valent iron with the enhancement of mobility by surface coating. Journal of Geochemical Exploration 2012, 113, 124-129. DOI: 10.1016/j.gexplo.2011.07.002. Myoung-Soo Ko, Ju-Yong Kim, Sunbeak Bang, Jin-Soo Lee, Ju-In Ko, Kyoung-Woong Kim.

More

Stabilization of arsenic in waste slag using FeCl 2 or ...

2.2.1 The stabilization method. Each 10.00 g arsenic waste slag sample was weighed and then placed in a 100 mL beaker. According to the As content provided in Tables 1 and 2, a certain quality of the stabilizing agent at different Fe: As molar ratios was added to the beaker, and the solid–liquid ratio was controlled at 3: 1. The pH was rapidly adjusted to the determined value using a 40% H 2 ...

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Stabilization methods for the treatment of weathered ...

ABSTRACT The release of arsenic from weathered arsenopyrite mine wastes represents a grave environmental issue, especially when dealing with former mining areas. The evaluation and development of measures to manage this type of wastes in a sustainable and economic way are required. In this study different methods based on the application of chemical amendments were assessed as stabilization ...

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Mechanisms at Different pH for Stabilization of Arsenic in ...

The mechanisms at different pH for the stabilization of arsenic (As) in mine tailings (MTs) using steelmaking slag were investigated using laboratory experiments. Two types of steelmaking slag were used in the experiments. Ca-slag has high pH and high calcium oxide content due to its short period of aging. In contrast, Fe-slag is oxidized for a long time and is richer in Fe than in Ca.

More

Field methodology for the stabilization of arsenic species ...

2006-5-29  9th INTERNATIONAL MINE WATER CONGRESS 569 Field methodology for the stabilization of arsenic species in AMD Sarmiento Aguasanta(1), Sánchez-Rodas Daniel(2), Oliveira Vanesa(2), Nieto José Miguel(1) Gómez-Ariza José Luis(2) (1)Department of Geology, University of Huelva, Campus “El Carmen”, E-21071, Huelva, Spain. E-mail address: [email protected]

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Trends and TreaTmenT of ImpurITIes In Copper mInIng

2021-11-10  (PLS) to arsenic stabilization stage Chuquicamata, Ventanas, Potrerillos Flue dusts: 40,329 tonnes Chuquicamata Acid effluent: 22,889 m3 Dilution water Sulphuric acid Flue dust Re˜nery and acid plant ef˚uents ecometales: Environmental solutions for the mining industry EcoMetales plant Flue dust leaching process

More