Potential of coal mine waste rock for generating acid mine drainage

Qureshi, Asif; Maurice, Christian; Öhlander, Björn

doi:10.1016/j.gexplo.2015.10.014

Cited by 70 publications

(25 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Generally also contains elements such as Si, Cr, Zn, Ni, As, Mo, Co and Cu. However,0the structure and0composition of mine waste varies greatly, depending on the0geology of the mine site and the type of mineral0or metal extracted [1].…”

Section: Introductionmentioning

confidence: 99%

Potential Formation of Acid Mine Drainage In Putra Perkasa Abadi Coal Mining Company - Girimulya Site (BIB), Tanah Bumbu Regency, South Kalimantan

et al. 2018

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Potential Formation of Acid Mine Drainage In Putra Perkasa Abadi Coal Mining Company - Girimulya Site (BIB), Tanah Bumbu Regency, South Kalimantan

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The oxidation process may be also influenced by some bacteria present in the system from small to large scale by accelerating oxidation of sulfides. 10 The geological and hydrological condition of the sites of the strata is also critical for acid mine drainage generation. Mining effluents are characterized by low pH [11][12][13][14] high acidity, turbidity, total dissolved solids and high metal contents [15][16][17] with high concentrations of iron.…”

Section: Introductionmentioning

confidence: 99%

Treatment of Acid Mine Drainage Using a Sandstone Column

2017

RJC

View full text Add to dashboard Cite

Acid mine drainage (AMD) or Acid rock drainage (ARD) from mining industry poses worldwide severe environmental problems including India also. In this study, heavy metal removal was tested in AMD samples collected from the Gorbi abandoned coal mine (India), having iron concentrations of 75 mg/L. Sandstone was collected from mine sites and converted into powders form and used as low-cost adsorbent in a column to treat acid mine drainage (AMD) obtained from the inactive Gorbi opencast coal mines (Singrauli coalfields, NCL). The pH value of the pit water sample improved from 2.48 to 3.90, along with the removal of, 100 % total iron, Lead (Pb), Cadmium (Cd), 71% of the electrical conductivity, 73% total dissolved solids and 50% of the salinity.

show abstract

“…This acid effluent is characterized by high concentrations of sulfate, iron (from sulfide minerals oxidation), aluminum (from weathering of the host rocks), and trace elements (Blowes et al 2014;Carrero et al 2015;Qureshi et al 2016), representing a recalcitrant environmental problem. It affects active and abandoned mining areas around the world (Younger et al 2002;Carrero et al 2015) where the leaching and dispersion of the toxic metals cause environmental damage to both surface and groundwaters, until complete weathering of pyrite and other sulfide minerals (Nordstrom 2009).…”

Section: Introductionmentioning

confidence: 99%

Hydrogeochemical features of surface water and groundwater contaminated with acid mine drainage (AMD) in coal mining areas: a case study in southern Brazil

Galhardi

Bonotto

2016

Environ Sci Pollut Res

110

View full text Add to dashboard Cite

Effects of acid mine drainage (AMD) were investigated in surface waters (Laranjinha River and Ribeirão das Pedras stream) and groundwaters from a coal mining area sampled in two different seasons at Figueira city, Paraná State, Brazil. The spatial data distribution indicated that the acid effluents favor the chemical elements leaching and transport from the tailings pile into the superficial water bodies or aquifers, modifying their quality. The acid groundwaters in both sampling periods (dry: pH 2.94-6.04; rainy: pH 3.25-6.63) were probably due to the AMD generation and infiltration, after the oxidation of sulfide minerals. Such acid effluents cause an increase of the solubilization rate of metals, mainly iron and aluminum, contributing to both groundwater and surface water contamination. Sulfate in high levels is a result of waters' pollution due to AMD. In some cases, high sulfate and low iron contents, associated with less acidic pH values, could indicate that AMD, previously generated, is nowadays being neutralized. The chemistry of the waters affected by AMD is controlled by the pH, sulfide minerals' oxidation, oxygen, iron content, and microbial activity. It is also influenced by seasonal variations that allow the occurrence of dissolution processes and the concentration of some chemical elements. Under the perspective of the waters' quality evaluation, the parameters such as conductivity, dissolved sodium, and sulfate concentrations acted as AMD indicators of groundwaters and surface waters affected by acid effluents.

show abstract

Potential of coal mine waste rock for generating acid mine drainage

Cited by 70 publications

References 31 publications

Potential Formation of Acid Mine Drainage In Putra Perkasa Abadi Coal Mining Company - Girimulya Site (BIB), Tanah Bumbu Regency, South Kalimantan

Potential Formation of Acid Mine Drainage In Putra Perkasa Abadi Coal Mining Company - Girimulya Site (BIB), Tanah Bumbu Regency, South Kalimantan

Treatment of Acid Mine Drainage Using a Sandstone Column

Hydrogeochemical features of surface water and groundwater contaminated with acid mine drainage (AMD) in coal mining areas: a case study in southern Brazil

Contact Info

Product

Resources

About