| Records |
| Author |
Eger, P.; Melchert, G.; Wagner, J. |
Title  |
Using passive treatment systems for mine closure – A good approach or a risky alternative? |
Type |
Journal Article |
| Year |
2000 |
Publication |
Min. Eng. |
Abbreviated Journal |
|
| Volume |
52 |
Issue |
9 |
Pages |
78-83 |
| Keywords |
Pollution and waste management non radioactive Groundwater problems and environmental effects geological abstracts: environmental geology (72 14 2) geomechanics abstracts: excavations (77 10 10) acid mine drainage decommissioning mine waste open pit mine pH remediation |
| Abstract |
In 1991, LTV Steel Mining decided to close an open-pit taconite mine in northeastern Minnesota using a passive-treatment approach consisting of limiting infiltration into the stockpiles and wetland treatment to remove metals. More than 50 Mt (55 million st) of sulfide-containing waste had been stockpiled adjacent to the mine during its 30 years of operation. Drainage from the stockpiles contained elevated levels of copper, nickel, cobalt and zinc. Nickel is the major trace metal in the drainages. Before the closure, the annual median concentrations ranged from 1.5 to 50 mg/L. Copper, cobalt and zinc are also present but they are generally less than 5% of the nickel values. Median pH levels range from 5 to 7.5, but most of the stockpile drainages have pH levels greater than 6.5. Based on the chemical composition of each stockpile, a cover material was selected. The higher the potential that a stockpile had to produce acid drainage, the lower the permeability of the capping material required. Covers ranged from overburden soil removed at the mine to a flexible plastic liner. Predictions of the reduction in infiltration ranged from 40% for the native soil to more than 90% for the plastic liner. Five constructed wetlands have been installed since 1992. They have removed 60% to 90% of the nickel in the drainages. Total capital costs for all the infiltration reduction and wetlands exceeded $6.5 million, but maintenance costs are less than 1% of those for an active treatment plant. Because mine-drainage problems can continue for more than 100 years, the lower annual operating costs should pay for the construction of the wetland-treatment systems within seven years. |
| Address |
P. Eger, Minnesota Dept. of Natural Rsrces., St. Paul, MN, United States |
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
0026-5187 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Using passive treatment systems for mine closure – A good approach or a risky alternative?; 2285715; United-States 19; Geobase |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17539 |
Serial |
392 |
| Permanent link to this record |
| |
|
| |
| Author |
Noss, R.R.; Crago, R.W.; Gable, J.; Kerber, B.; Mafi, S. |
| Title |
Use of flue gas desulfurization sludge in abandoned mine land reclamation |
Type |
Journal Article |
| Year |
1997 |
Publication |
|
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
|
| Keywords |
abandoned mines; acid mine drainage; flue gas desulfurization sludge; land management; land use; liquid waste; mines; mining; mining geology; moisture; pH; pollution; reclamation; remediation; soils; strip mining; surface mining; waste disposal 22, Environmental geology |
| Abstract |
|
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
The Ohio Journal of Science |
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
Ohio Academy of Science 106th annual meeting; progress toward water quality in the Lake Erie basin; abstracts |
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
1999-043696; Ohio Academy of Science 106th annual meeting, Bowling Green, OH, United States, April 4-6, 1997; GeoRef; English |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 6302 |
Serial |
282 |
| Permanent link to this record |
| |
|
| |
| Author |
Blowes, D.W.; Ptacek, C.J.; Benner, S.G.; McRae, C.W.T.; Bennett, T.A.; Puls, R.W. |
| Title |
Treatment of inorganic contaminants using permeable reactive barriers |
Type |
Journal Article |
| Year |
2000 |
Publication |
J Contam Hydrol |
Abbreviated Journal |
|
| Volume |
45 |
Issue |
1-2 |
Pages |
123-137 |
| Keywords |
acid mine drainage; adsorption; agricultural waste; aquifers; chemical reactions; chromium; concentration; contaminant plumes; decontamination; disposal barriers; dissolved materials; drainage; ground water; heavy metals; metals; nitrate ion; nutrients; permeability; phosphate ion; pollution; pump-and-treat; remediation; sulfate ion; waste disposal; water treatment mine water treatment Remediation Groundwater Metals Nutrients Radionuclides |
| Abstract |
Permeable reactive barriers are an emerging alternative to traditional pump and treat systems for groundwater remediation. This technique has progressed rapidly over the past decade from laboratory bench-scale studies to full-scale implementation. Laboratory studies indicate the potential for treatment of a large number of inorganic contaminants, including As, Cd, Cr, Cu, Hg, Fe, Mn, Mo, Ni, Pb, Se, Tc, U, V, NO3, PO4 and SO4. Small-scale field studies have demonstrated treatment of Cd, Cr, Cu, Fe, Ni, Pb, NO3, PO4 and SO4. Permeable reactive barriers composed of zero-valent iron have been used in full-scale installations for the treatment of Cr, U, and Tc. Solid-phase organic carbon in the form of municipal compost has been used to remove dissolved constituents associated with acid-mine drainage, including SO4, Fe, Ni, Co and Zn. Dissolved nutrients, including NO3 and PO4, have been removed from domestic septic-system effluent and agricultural drainage. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
0169-7722 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Sept.; Treatment of inorganic contaminants using permeable reactive barriers; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/9401.pdf; Science Direct |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 9401 |
Serial |
46 |
| Permanent link to this record |
| |
|
| |
| Author |
Hayward, D.; Barnard, R. |
| Title |
Treatment of acid mine wastewaters. Behandlung saurer Grubenwässer |
Type |
Journal Article |
| Year |
1993 |
Publication |
World Mining Equipment |
Abbreviated Journal |
|
| Volume |
17 |
Issue |
6 |
Pages |
36-37 |
| Keywords |
Wasseraufbereitung Abwasserbehandlung chemische-Abwasserreinigung Grubenentwässerung Ausfällung Schwermetalle Calciumcarbonat pH-Wert Wasserreinhaltung Grubenwasser |
| Abstract |
Überblick über einschlägige Verfahren zum Ausfällen der sauren Betandteile, Entfernen der Schwermetalle, und Einstellen des pH-Wertes auf einen Wert von 6 bis 9. Hauptsächliche Verfahren zum Ausfällen sind: Ausfällen mit Kalkhydrat (Ca(OH)2), mit Kalkstein, Calcium- oder Natriumsulfid. Durch Abtrennen des Niederschlages in einem Kläreindicker und zusätzliche Reinigung durch Filtrieren kann ein Anteil von 90% der unlöslichen Schwermetallverbindungen entfernt werden. Allgemein wird mit diesem Verfahren ein Standardgehalt von 5 mg/l erreicht. Durch zusätzliche Anwendung physikochemischer Verfahren kann der Schwermetallgehalt weiter gesenkt werden: Mikrofiltration, Umkehrosmose, Elektrodialyse, Ionenaustausch, biochemische und spezielle chemische Verfahren können je nach Eigenart der Grubenwässer verwendet werden. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
0746-729x |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Treatment of acid mine wastewaters. Behandlung saurer Grubenwässer; 4737, BERG , 01.01.93; Words: 328; M9311 6018 586; 2 Seiten, 2 Bilder 3UXX *Belastung von Wasser, Wasserreinhaltung, Abwasser* 3MZ *Bergbau, Tunnelbau, Erdöl /Erdgasförderung, Bohrtechnik* 3PH *Trennen fest/flüssig/gasförm. Stoffe, dispers. Stoffsysteme*; BERG, Copyright FIZ Technik e.V.; EN Englisch |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17612 |
Serial |
358 |
| Permanent link to this record |
| |
|
| |
| Author |
Zamzow, M.J.; Schultze, L.E. |
| Title |
Treatment of acid mine drainage using natural zeolites |
Type |
Journal Article |
| Year |
1993 |
Publication |
International Conference on the Occurrence, Properties, and Utilization of Natural Zeolites |
Abbreviated Journal |
|
| Volume |
1993 |
Issue |
|
Pages |
220-221 |
| Keywords |
abandoned mines; acid mine drainage; clinoptilolite; experimental studies; feasibility studies; framework silicates; hydrochemistry; mines; Nevada; northeastern Nevada; phillipsite; remediation; Rio Tinto Deposit; silicates; surface water; United States; zeolite group abandoned mines acid mine drainage clinoptilolite experimental studies feasibility studies framework silicates hydrochemistry mines Nevada northeastern Nevada phillipsite remediation Rio Tinto Deposit silicates surface water United States zeolite group |
| Abstract |
|
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Treatment of acid mine drainage using natural zeolites; GeoRef: 95-04036 1 table; AMD ISI | Wolkersdorfer |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 9998 |
Serial |
192 |
| Permanent link to this record |
