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Bolzicco, J.; Carrera, J.; Ayora, C. |
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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 |
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Journal Article |
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Year |
2004 |
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Revista Latino-Americana de Hidrogeologia |
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4 |
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27-34 |
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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 |
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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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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 |
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CBU @ c.wolke @ 16471 |
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443 |
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Author |
Rees, B. |
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An overview of passive mine water treatment in Europe |
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2005 |
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Mine Water Env. |
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24 |
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1 |
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26-28 |
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abandoned mines; Europe; ground water; mines; mining; pollutants; pollution; protection; surface water; water pollution; water quality; water treatment 22, Environmental geology |
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1025-9112 |
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An overview of passive mine water treatment in Europe; 2007-023994; 1 table Federal Republic of Germany (DEU); GeoRef; English |
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CBU @ c.wolke @ 5411 |
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19 |
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Author |
Adam, K. |
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Title |
Solid wastes management in sulphide mines: From waste characterisation to safe closure of disposal sites |
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2003 |
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Minerals and Energy Raw Materials Report |
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18 |
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4 |
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25-35 |
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Waste Management and Pollution Policy Pollution and waste management non radioactive geographical abstracts: human geography environmental planning (70 11 5) geological abstracts: environmental geology (72 14 2) waste disposal waste management solid waste mining industry acid mine drainage Europe Eurasia |
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Environmentally compatible Waste Management schemes employed by the European extractive industry for the development of new projects, and applied in operating sulphide mines, are presented in this study. Standard methodologies used to assess the geotechnical and geochemical properties of the solid wastes stemming from mining and processing of sulphidic metal ores are firstly given. Based on waste properties, the measures applied to ensure the environmentally safe recycling and disposal of sulphidic wastes are summarised. Emphasis is given on the novel techniques developed to effectively prevent and mitigate the acid drainage phenomenon from sulphidic mine wastes and tailings. Remediation measures taken to minimise the impact from waste disposal sites in the post-closure period are described. |
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K. Adam, ECHMES Ltd, Mikras Asias 40-42, Athens 11527, Greece echmes@otenet.gr |
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1404-1049 |
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Solid wastes management in sulphide mines: From waste characterisation to safe closure of disposal sites; 2582509; Norway 25; Geobase |
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CBU @ c.wolke @ 17510 |
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492 |
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Author |
Coulton, R.H.; Williams, K.P. |
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Title |
Active treatment of mine water; a European perspective |
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2005 |
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Mine Water Env. |
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24 |
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1 |
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23-26 |
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abandoned mines; Europe; ground water; mines; mining; pollutants; pollution; protection; surface water; water pollution; water quality; water treatment 22, Environmental geology |
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1025-9112 |
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Active treatment of mine water; a European perspective; 2007-023995; illus. incl. 3 tables Federal Republic of Germany (DEU); GeoRef; English |
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CBU @ c.wolke @ 5412 |
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20 |
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Komnitsas, K.; Xenidis, A.; Tabouris, S. |
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Composite cover for the prevention of acid mine drainage |
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2000 |
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Mining Environmental Management |
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8 |
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6 |
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14-17 |
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acid mine drainage; case studies; dams; Europe; field studies; Greece; Laurion Greece; pollution; preventive measures; remediation; Southern Europe; Sterea Ellas; tailings; tailings dams 22, Environmental geology |
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0969-4218 |
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Composite cover for the prevention of acid mine drainage; 2001-038333; References: 4; illus. incl. 4 tables United Kingdom (GBR); GeoRef; English |
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CBU @ c.wolke @ 5800 |
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327 |
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