| Records |
| Author |
Sanders, F.; Rahe, J.; Pastor, D.; Anderson, R. |
| Title |
Wetlands treat mine runoff |
Type |
Journal Article |
Year  |
1999 |
Publication |
Civil Engineering |
Abbreviated Journal |
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| Volume |
69 |
Issue |
1 |
Pages |
53-55 |
| 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 constructed wetland heavy metal remediation United States Montana Blackfoot River |
| Abstract |
In the late 1890s, silver, lead and zinc deposits were discovered along the headwaters of the Blackfoot River, northeast of Missoula, Mont. Settlers began mining the metals in earnest, and eventually the mines became known as the Upper Blackfoot Mining Complex (UBMC). Many of the mines were operated long enough to supply metals for World War II weaponry, but after the war the mines were abandoned, and by the 1960s, their orange-tainted runoff began to concern both passersby and state officials. In 1991, the state contacted the current owners of several of those mines-including the Mike Horse and the Anaconda-to negotiate a voluntary cleanup. The American Smelting and Refining Co. (ASARCO) and the Atlantic Richfield Co. (ARCO) agreed to remediate the sites' metal-enriched, moderately to severely acidic drainage, which was discharging into the upper Blackfoot River. As part of effort to reclaim the Mike Horse and Anaconda mines, engineers with McCulley, Frick and Gilman Inc. (MFG), Boulder, Colo., developed an integrated, passive wetland treatment system that will take several years to reach full treatment capacity in the high-elevation environment, but will last for decades. (Constructed and restored wetlands have also been part of the remediation of other UBMC mines, such as the Carbonate and Paymaster mines.) The Mike Horse and Anaconda system, designed to meet National Pollutant Discharge Elimination Systems (NPDES) restrictions, concentrates primarily on zinc and iron and, to a lesser extent, on copper, lead and other metals. |
| Address |
F. Sanders, McCulley, Frick and Gilman Inc., Boulder, CO, United States |
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Edition |
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| ISSN |
0885-7024 |
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| Notes |
Wetlands treat mine runoff; 0411276; United-States; Geobase |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17551 |
Serial |
256 |
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| Author |
Reisinger, R.W.; Gusek, J. |
| Title |
Mitigation of water contamination at the historic Ferris-Haggarty Mine, Wyoming |
Type |
Journal Article |
| Year |
1999 |
Publication |
Min. Eng. |
Abbreviated Journal |
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| Volume |
51 |
Issue |
8 |
Pages |
49-53 |
| Keywords |
Reclamation and conservation Groundwater problems and environmental effects geological abstracts: environmental geology (72 14 1) geomechanics abstracts: excavations (77 10 10) abandoned mine copper hydrogeology mine drainage United States Wyoming Ferris Haggarty Mine |
| Abstract |
An historic underground copper mine in Wyoming is discharging neutral but copper-laden water into a pristine creek. The EPA-deferred site qualifies for reclamation by the Wyoming Abandoned Mine Land (AML) program. The cleanup goal is to restore the discharge so that the creek can eventually support a trout fishery. Hydrological and geochemical investigations underground have suggested two sources of mine water: one clean and the other containing copper. Results of bench- and pilot-scale tests support the viability of using low-cost passive treatment techniques to reduce copper concentrations in the near-freezing mine discharge. |
| Address |
R.W. Reisinger, Knight Piesold LLC, Denver, CO, United States |
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Edition |
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| ISSN |
0026-5187 |
ISBN |
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| Notes |
Mitigation of water contamination at the historic Ferris-Haggarty Mine, Wyoming; 0434643; United-States 5; Geobase |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17637 |
Serial |
263 |
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| Author |
Miller, S.D. |
| Title |
Overview of acid mine drainage issues and control strategies Remediation and management of degraded lands |
Type |
Book Chapter |
| Year |
1999 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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acid mine drainage; controls; decontamination; environmental analysis; environmental effects; geochemistry; ground water; land management; lime; oxidation; pH; pollutants; pollution; preventive measures; risk assessment; soils; sulfides; surface water; waste disposal; waste management 22, Environmental geology |
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Lewis Publishers |
Place of Publication |
Boca Raton |
Editor |
Wong, M.H.; Wong, J.W.C.; Baker, A.J.M. |
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ISBN |
157504109x |
Medium |
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| Notes |
Overview of acid mine drainage issues and control strategies Remediation and management of degraded lands; GeoRef; English; 2000-057936 |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 5951 |
Serial |
298 |
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| 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 |
ISBN |
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| Notes |
Remediating historic mine sites in Colorado; 0434641; United-States; Geobase |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17547 |
Serial |
398 |
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| Author |
Benzaazoua, M.; Bussiere, B. |
| Title |
Desulphurization of tailings with low neutralizing potential; kinetic study and flotation modeling |
Type |
Book Chapter |
| Year |
1999 |
Publication |
Sudbury '99; Mining and the environment II; conference proceedings |
Abbreviated Journal |
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Issue |
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acid mine drainage chemical properties chemical reactions environmental analysis environmental effects experimental studies flotation geochemistry kinetics laboratory studies mathematical models neutralization pH pollution sulfur tailings 22 Environmental geology 02A General geochemistry |
| Abstract |
Environmental desulphurization is an attractive alternative for acid generating tailings management as demonstrated during the last few years. In fact, such process placed at the end of the primary treatment circuit allows to reduce greatly the amount of problematic tailings by concentrating the sulphidic fraction. Moreover, the desulphurized tailings (non-acid generating) have the geotechnical and environmental properties for being used as fine material in a cover with capillary barrier effects. To produce desulphurized tailings, non selective froth flotation is the most adapted method as shown in many previous works. Desulphurization level is fixed by tailings sulphur content (or sulphide content) and neutralization potential NP. The final residue should have enough NP to compensate for his acid generating potential AP. In this paper, the authors present the results of laboratory tests conducted in Denver cells for studying the sulphide flotation kinetics of four mine tailings which are characterized by a weak neutralization potential (under 37 kg CaCO (sub 3) /t). Tailings 1, 2, 3 and 4 contain respectively 5.27, 10, 4.25 and 16.9 sulphur Wt. %. Tailings 1 and 2 are cyanide free and are well floated at pH around 11 by using amyl xanthate as collector. Collector dosage was optimized for these tailings and the results show that Tailing 2 need more collector. However, Tailings 3 and 4, which come from a gold cyanidation process, could not provide good sulphide recovery with xanthate collector because of the pyrite depression. To overcome this problem, amine acetate was used successfully but induces important entrainment. The consumption of this collector was also optimized. The results of kinetic tests and collector dosage were combined and modeled to establish relationships which allow to estimate the desulphurization performances. |
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Editor |
Goldsack, D.; Belzile, N.; Yearwood, P.; Hall, G. |
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Edition |
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ISBN |
0886670470 |
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Conference |
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| Notes |
Desulphurization of tailings with low neutralizing potential; kinetic study and flotation modeling; GeoRef; English; 2002-060841; Sudbury '99; Mining and the environment II--Sudbury '99; L'exploitation miniere et l'environnement, Sudbury, ON, Canada, Sept. 13-17, 1999 References: 26; illus. incl. 5 tables |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16572 |
Serial |
452 |
| Permanent link to this record |
