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Author Bolzicco, J.; Carrera, J.; Ayora, C.
Title Eficiencia de la barrera permeable reactiva de Aznalcollar (Sevilla, Espana) como remedio de aguas acidas de mina. Reactive permeable disposal barrier at Aznalcollar Mine, Seville, Spain; as remediation for acid mine drainage Type Journal Article
Year 2004 Publication (down) Revista Latino-Americana de Hidrogeologia Abbreviated Journal
Volume 4 Issue Pages 27-34
Keywords abandoned mines acid mine drainage Agrio River Andalusia Spain aquifers Aznalcollar Mine Cenozoic chemical composition chemical ratios copper ores dams disposal barriers drainage basins Europe geochemistry ground water Guadiamar River hydrochemistry Iberian Peninsula Iberian pyrite belt igneous rocks metal ores mineral composition mines mining Miocene Neogene permeability pH pollution reactive barriers remediation sedimentary rocks sediments Seville Spain Southern Europe Spain surface water tailings Tertiary volcanic rocks waste disposal water treatment zinc ores 22, Environmental geology
Abstract As a result of the collapse of a mine tailing dam in april 1998 about 40 km of the Agrio and Guadiamar valleys were covered with a layer of pyrite sludge. Although most of the sludge was removed, a small amount remains in the soil of the Agrio valley and the aquifer remains polluted with acid water (ph<4) and metals (10 mg/L Zn, 5 mg/L Cu and Al). A permeable reactive barrier was build across the aquifer to increase the alcalinity and retain the metals. The barrier is made up of three sections of 30 m longX1.4 m thickX5 m deep (average) containing different proportions of limestone gravel, organic compost and zero-valent iron. The residence time of the water in the barrier is about two days. Within the barrier, the pH values increase to near neutral mainly due to calcite dissolution. Metals co-precipitate as oxyhydroxides, and they are also adsorbed on the organic matter surface. Down-stream the barrier, the total pollution removal is around 60-90% for Zn and Cu, and from 50 to 90% for Al and acidity.
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Notes Eficiencia de la barrera permeable reactiva de Aznalcollar (Sevilla, Espana) como remedio de aguas acidas de mina. Reactive permeable disposal barrier at Aznalcollar Mine, Seville, Spain; as remediation for acid mine drainage; 2004-072864; References: 7; illus. incl. geol. sketch map Brazil (BRA); GeoRef; Spanish Approved no
Call Number CBU @ c.wolke @ 16471 Serial 443
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Author Smyth, D.J.A.; Blowes, D.W.; Benner, S.G.; Hulshof, A.M.; Nelson, J.D.
Title In situ treatment of groundwater impacted by acid mine drainage using permeable reactive materials Type Book Chapter
Year 2001 Publication (down) Proceedings of the Eighth international conference on Tailings and mine waste '01 Abbreviated Journal
Volume Issue Pages 313-322
Keywords acid mine drainage; environmental management; ground water; in situ; permeability; pollution; reclamation; sulfate ion; water treatment 22, Environmental geology
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Notes In situ treatment of groundwater impacted by acid mine drainage using permeable reactive materials; GeoRef; English; 2003-003552; Tailings and mine waste '01, Fort Collins, CO, United States, Jan. 16-19, 2001 References: 19; illus. Approved no
Call Number CBU @ c.wolke @ 5770 Serial 236
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Author Taylor, J.; Waters, J.
Title Treating ARD; how, when, where and why Type Journal Article
Year 2003 Publication (down) Mining Environmental Management Abbreviated Journal
Volume 11 Issue 3 Pages 6-9
Keywords acid mine drainage; acid rock drainage; acidification; alkalinity; carbonate rocks; chemical properties; chemical reactions; coal; disposal barriers; economics; flocculation; ground water; heavy metals; human activity; ion exchange; limestone; mines; oxidation; oxides; permeability; pollution; porosity; pyrolusite; remediation; sedimentary rocks; surface water; waste disposal; waste management; water pollution; water treatment; wetlands 22, Environmental geology
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Notes Treating ARD; how, when, where and why; 2004-045038; References: 8; illus. incl. 2 tables United Kingdom (GBR); GeoRef; English Approved no
Call Number CBU @ c.wolke @ 5528 Serial 225
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Author Rees, B.; Bowell, R.; Dey, M.; Williams, K.
Title Passive treatment; a walk away solution? Type Journal Article
Year 2001 Publication (down) Mining Environmental Management Abbreviated Journal
Volume 9 Issue 2 Pages 7-8
Keywords acid mine drainage; acidification; alkalinity; bacteria; bioremediation; buffers; chemical reactions; cost; effluents; ferric iron; ferrous iron; filtration; ground water; hydrolysis; iron; metals; monitoring; oxidation; permeability; pH; pollution; remediation; substrates; sulfate ion; suspended materials; water management; water pollution; water quality; water treatment; wetlands 22, Environmental geology
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Notes Passive treatment; a walk away solution?; 2001-050826; References: 3; illus. United Kingdom (GBR); GeoRef; English Approved no
Call Number CBU @ c.wolke @ 5722 Serial 265
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Author Kuyucak, N.
Title Acid mining drainage prevention and control Type Journal Article
Year 2001 Publication (down) Mining Environmental Management Abbreviated Journal
Volume 9 Issue 1 Pages 12-15
Keywords acid mine drainage; bacteria; biodegradation; chemical properties; controls; disposal barriers; dissolved materials; geomembranes; heavy metals; hydrolysis; leaching; migration of elements; moisture; oxidation; permeability; pollution; ponds; preventive measures; reclamation; retention; risk assessment; sulfate ion; sulfides; synthetic materials; tailings; toxic materials; underground installations; underground storage; waste disposal; waste management; water pollution; water treatment 22, Environmental geology
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Notes Acid mining drainage prevention and control; 2001-050583; References: 21; illus. incl. 1 table United Kingdom (GBR); GeoRef; English Approved no
Call Number CBU @ c.wolke @ 5741 Serial 323
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