| Records |
| Author |
Dunn, J.; Russell, C.; Morrissey, A. |
| Title |
Remediating historic mine sites in Colorado |
Type |
Journal Article |
| Year |
1999 |
Publication |
Min. Eng. |
Abbreviated Journal |
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| Volume |
51 |
Issue  |
8 |
Pages |
32-35 |
| Keywords |
Reclamation and conservation Groundwater problems and environmental effects geological abstracts: environmental geology (72 14 1) geomechanics abstracts: excavations (77 10 10) abandoned mine acid mine drainage environmental effect remediation United States Colorado |
| Abstract |
This article provides examples of reclamation and remediation in Colorado watersheds. The projects were undertaken by the US Environmental Protection Agency (EPA) Region 8, in cooperation with the Colorado Division of Minerals and Geology (CDMG), Colorado Department of Public Health and Environment (CDPHE), US Forest Service (USFS), the Bureau of Land Management (BLM), Bureau of Reclamation (BOR) and the US Geological Survey (USGS). These agencies collaborated on the environmental problems at abandoned mines. These samples involved the interaction of surface and ground waters with sulfide-bearing rocks, mine workings and surface mine spoils that produce acid solutions charged with heavy metals that are toxic to organisms. In these examples, acid mine drainage from historic mines in Colorado has been approached cooperatively with stakeholders. Each example emphasizes one aspect of the three-stage process. These stages include characterization and prioritization, hydrologic controls and the evaluation of long-term remediation activities. |
| Address |
J. Dunn, US Environmental Protection Agency, Region 8, 999 18(th) St., Suite 500, Denver, CO 80202-2466, United States |
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0026-5187 |
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Remediating historic mine sites in Colorado; 0434641; United-States; Geobase |
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no |
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CBU @ c.wolke @ 17547 |
Serial |
398 |
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| Author |
Deshpande, V.P.; Pande, S.P.; Gadkari, S.K.; Saxena, K.L. |
| Title |
Acid-mine Drainage Treatment |
Type |
Journal Article |
| Year |
1991 |
Publication |
J. Environ. Sci. Health Part A-Environ. Sci. Eng. Toxic Hazard. Subst. Control |
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| Volume |
26 |
Issue |
8 |
Pages |
1387-1408 |
| Keywords |
mine water |
| Abstract |
One of the serious problem faced by the mining industry is the disposal of acid mine drainage in view of it's harmful effects on receiving water bodies.Studies were conducted at Churcha underground mines of Colleries of South Eastern Coal Fields (CoalIndia Ltd) on the acidic mine waters with a view to evolve effective treatment system. The results of treatability studies alongwith viable treatment options are discussed in the paper. |
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1077-1204 |
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Acid-mine Drainage Treatment; Isi:A1991gt63500005; AMD ISI | Wolkersdorfer |
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no |
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CBU @ c.wolke @ 17330 |
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403 |
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| Author |
Bell, A.V. |
| Title |
Some Recent Experiences In Treatment Of Acidic, Metal-Bearing Mine Drainages |
Type |
Journal Article |
| Year |
1975 |
Publication |
CIM Bull. |
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68 |
Issue |
764 |
Pages |
39-46 |
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mine water treatment |
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Some Recent Experiences In Treatment Of Acidic, Metal-Bearing Mine Drainages; Wos:A1975az60400006; Times Cited: 1; ISI Web of Science |
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no |
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CBU @ c.wolke @ 9249 |
Serial |
99 |
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| Author |
Bell, A.V.; Nancarrow, D.R. |
| Title |
Salmon and mining in northeastern New Brunswick (a summary of the northeastern New Brunswick mine water quality program) |
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Journal Article |
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1974 |
Publication |
CIM Bull. |
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67 |
Issue |
751 |
Pages |
44-53 |
| Keywords |
mining water pollution water treatment salmon mining mine water quality programme mineral resources fishery resource metal mining Computers and Control Manufacturing and Production |
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It was aimed toward developing solutions to major water quality problems in the base metal mining regions of northeastern New Brunswick and specifically toward insuring that the extremely valuable fishery resources and aquatic environments of the region could be maintained in the face of existing and future base metal mining developments. The program analyzed in detail the fishery resources of the region, their water quality requirements, the mineral resources of the region and the many aspects of mining waste management at each phase of mine development. This paper describes the reasons for the initial concern and the approach adopted toward finding a solution. It briefly summarizes the important findings and recommendations made to support the conclusion that the fishery resource can be maintained and co-exist with current and future base metal mining developments in the region |
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0317-0926 |
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Salmon and mining in northeastern New Brunswick (a summary of the northeastern New Brunswick mine water quality program); 771627; Journal Paper; SilverPlatter; Ovid Technologies |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16788 |
Serial |
457 |
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| Author |
Catalan, L.J.J.; Yin, G. |
| Title |
Comparison of calcite to quicklime for amending partially oxidized sulfidic mine tailings before flooding |
Type |
Journal Article |
| Year |
2003 |
Publication |
Environ Sci Technol |
Abbreviated Journal |
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| Volume |
37 |
Issue |
7 |
Pages |
1408-1413 |
| Keywords |
mine water treatment |
| Abstract |
Flooding partially oxidized mine tailings for the purpose of mitigating further oxidation of sulfide minerals and generation of acid drainage is generally preceded by treatment with alkaline amendments to prevent releasing previously accumulated acidity to the water cover. This work compares the ability of calcite (CaCO3) and quicklime (CaO), two common amendments, to establish and maintain pH conditions and dissolved metal concentrations within environmentally acceptable ranges over long time periods. Although higher initial pH values were obtained with quicklime, the pH of quicklime treated tailings decreased over time. This was attributed to the low buffering capacity of quicklime treated tailings and to the consumption of hydroxide ions by incongruent dissolution of water-insoluble iron oxyhydroxysulfate minerals. In contrast, the pH of tailings treated with calcite increased initially and then remained stable at pH approximate to 6.7. This pH behavior was due to the lower reactivity of iron oxyhydroxysulfates with calcite, the increased buffering capacity provided by bicarbonate ions, and the incomplete dissolution of calcite. Overall, calcite was found preferable to quicklime for maintaining long-term neutral pH conditions in the treated tailings. With the exception of zinc, acceptable dissolved metal concentrations were achieved with calcite treated tailings. |
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0013-936x |
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Apr. 01; Comparison of calcite to quicklime for amending partially oxidized sulfidic mine tailings before flooding; Wos:000181977000050; Times Cited: 2; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/7917.pdf; ISI Web of Science |
Approved |
no |
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CBU @ c.wolke @ 7917 |
Serial |
118 |
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