Long-term evaluation of coal fly ash and mine tailings co-placement: A site-specific study

Yeheyis, Muluken; Shang, Julie Q.; Yanful, Ernest K.

doi:10.1016/j.jenvman.2009.08.010

Cited by 48 publications

(21 citation statements)

References 17 publications

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“…Standard acid-base accounting (ABA) is the most commonly used static test to predict AMD from mine wastes (Yeheyis et al 2009). The ABA test evaluates the balance between maximum acidgenerating processes (oxidation of sulfide minerals) and acid-neutralizing processes (dissolution of alkaline carbonates, displacement of exchangeable bases, and weathering of silicates) (Sobek et al 1978;Ritcey 1989;Skousen et al 2002;Yeheyis et al 2009;Banerjee 2014).…”

Section: Standard Acid-base Accountingmentioning

confidence: 99%

“…The ABA test evaluates the balance between maximum acidgenerating processes (oxidation of sulfide minerals) and acid-neutralizing processes (dissolution of alkaline carbonates, displacement of exchangeable bases, and weathering of silicates) (Sobek et al 1978;Ritcey 1989;Skousen et al 2002;Yeheyis et al 2009;Banerjee 2014). The maximum acidproducing potential (MAP) of the sample is calculated on the basis of its total sulfur (S) content: for each 1 % S contained in the material, 31.25 metric tons (t) of calcium carbonate are required for neutralizing the sulfuric acid produced from 1000 t of the material (Sobek et al 1978;Skousen et al 2000).…”

Section: Standard Acid-base Accountingmentioning

confidence: 99%

“…The time period for such management and treatment can span decades to centuries , 2001. Given that mineralogy and other factors affecting AMD formation are highly variable from site to site, predicting the potential for AMD can be exceedingly challenging and costly (U.S. EPA 1994; Yeheyis et al 2009). …”

Section: Introductionmentioning

confidence: 99%

“…Static tests used to evaluate the acid generation potential of rocks and mine wastes are critical to determine the environmental impact of a mine site and to choose a waste management method to minimize that impact (Ritcey 1989;Morin and Hutt 1997;Bussiere et al 2004;Benzaazoua et al 2004;Yeheyis et al 2009). Details of these tests are documented (Sobek et al 1978;Smith et al 1992;Morin and Hutt 1997;White et al 1999;Mitchell 2000;Jambor 2003;Mills 2007;Lottermoser 2010).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Prediction of acid mine drainage generation potential of various lithologies using static tests: Etili coal mine (NW Turkey) as a case study

Yücel

Baba

2016

Environ Monit Assess

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The Etili neighborhood in Can County (northwestern Turkey) has large reserves of coal and has been the site of many small-to medium-scale mining operations since the 1980s. Some of these have ceased working while others continue to operate. Once activities cease, the mining facilities and fields are usually abandoned without rehabilitation. The most significant environmental problem is acid mine drainage (AMD). This study was carried out to determine the acid generation potential of various lithological units in the Etili coal mine using static test methods. Seventeen samples were selected from areas with high acidic water concentrations: from different alteration zones belonging to volcanic rocks, from sedimentary rocks, and from coals and mine wastes. Static tests (paste pH, standard acid-base accounting, and net acid generation tests) were performed on these samples. The consistency of the static test results showed that oxidation of sulfide minerals, especially pyrite-which is widely found not only in the alteration zones of volcanic rocks but also in the coals and mine wastes-is the main factor controlling the generation of AMD in this mine. Lack of carbonate minerals in the region also increases the occurrence of AMD.

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Section: Standard Acid-base Accountingmentioning

confidence: 99%

Section: Standard Acid-base Accountingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Prediction of acid mine drainage generation potential of various lithologies using static tests: Etili coal mine (NW Turkey) as a case study

Yücel

Baba

2016

Environ Monit Assess

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“…The mechanical, hydraulic, and environmental behavior of CPB has been investigated by numerous researchers (Landriault et al 1997;Zou and Li 1999;Belem et al 2000;Belem et al 2001;Benzaazoua et al 2004;Fall et al 2005Fall et al , 2008Kesimal et al 2005;Klein and Simon 2006;Ouellet et al 2006;Ouellet et al 2007;Benzaazoua et al 2008;Ercikidi et al 2009;Yeheyis et al 2009;Nasir and Fall 2010;Zhang et al 2011;Ercikidi et al 2013). In general, addition of a cementitious binder has been shown to increase strength, reduce hydraulic conductivity, increase pH of the effluent, and stabilize heavy metals present in mine tailings.…”

Section: Problem Statementmentioning

confidence: 99%

Hydraulic Conductivity of Fly Ash-Amended Mine Tailings

Alhomair

2016

Geotech Geol Eng

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HYDRAULIC CONDUCTIVITY OF FLY ASH-AMENDED MINE TAILINGSThe objective of this study was to evaluate the effect of fly ash addition on hydraulic conductivity (k) of mine tailings. Fly ash-amended mine tailings have potential application as construction materials in active mines, transportation earthworks, and other geotechnical engineering projects. Addition of cementitious binder (fly ash) to mine tailings has the potential to reduce hydraulic conductivity and enhance contaminant sequestration to be feasible in earthwork projects. Mine tailings used in this study were categorized as synthetic tailings and natural tailings. Natural tailings were collected from a garnet mine located in the U.S. Two synthetic mine tailings were developed via blending commercially-available soils to create typical particle-size distributions and plasticity characteristics of actual mine tailings. The two types of fly ash used classified as off-specification, but had sufficient calcium oxide (CaO) content (17% and 18.9%) for pozzolanic activity.

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Assessment of Soil Trace Metal Pollution in the Xuejiping Mine Area, Yunan, China

Chen

Yao

Huang

et al. 2021

CLEAN Soil Air Water

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Environmental pollution and risk assessment of trace metals in top soils of Xuejiping Mine in Xichang City are studied. Soil samples are collected around the mine areas. Seven trace metal elements (Hg, Cd, Pb, Cr, Cu, Zn, and As) are analyzed to evaluate the pollution status using chemical speciation, geo‐accumulation index (Igeo), and the potential ecological risk index (RI). Results indicate that concentrations of trace metal elements in the mining area exceed soil background values in Yunnan Province. Trace metal elements are ranked according to the Igeo evaluation results (indicating the degree of pollution), as: Pb > As > Cu > Hg > Zn > Cd > Cr; trace elements are ranked as Enormalrifalse(normalHgfalse) > Enormalrifalse(normalAsfalse) > Enormalrifalse(normalCdfalse) > Enormalrifalse(normalPbfalse) > Enormalrifalse(normalCufalse) > Enormalrifalse(normalCrfalse) > Enormalrifalse(normalZnfalse) using the ecological risk index. These results indicate that the surface soil of the Xuejiping mining area is moderately polluted by trace metal elements. Therefore, effective measures can be taken to control the trace metals pollution in the mining area (especially for Pb and Cu).

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Long-term evaluation of coal fly ash and mine tailings co-placement: A site-specific study

Cited by 48 publications

References 17 publications

Prediction of acid mine drainage generation potential of various lithologies using static tests: Etili coal mine (NW Turkey) as a case study

Prediction of acid mine drainage generation potential of various lithologies using static tests: Etili coal mine (NW Turkey) as a case study

Hydraulic Conductivity of Fly Ash-Amended Mine Tailings

Assessment of Soil Trace Metal Pollution in the Xuejiping Mine Area, Yunan, China

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