| Records |
| Author |
Watzlaf, G.R.; Schroeder, K.T.; Kairies, C.L. |
Title  |
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Type |
Book Whole |
| Year |
2000 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
262-274 |
| Keywords |
passive treatment anoxic limestone drains wetlands sulfate reduction successive alkalinity-producing systems acid mine drainage ALD SAPS RAPS |
| Abstract |
Ten passive treatment systems, located in Pennsylvania and Maryland, have been intensively monitored for up to ten years. Influent and effluent water quality data from ten anoxic limestone drains (ALDs) and six reducing and alkalinity-producing systems (RAPS) have been analyzed to determine long-term performance for each of these specific unit operations. ALDs and RAPS are used principally to generate alkalinity, ALDs are buried beds of limestone that add alkalinity through dissolution of calcite. RAPS add alkalinity through both limestone dissolution and bacterial sulfate reduction. ALDs that received mine water containing less than 1 mg/L of both ferric iron and aluminum have continued to produce consistent concentrations of alkalinity since their construction. However, an ALD that received 20 mg/L of aluminum experienced a rapid reduction in permeability and failed within five months. Maximum levels of alkalinity (between 150 and 300 m&) appear to be reached after I5 hours of retention. All but one RAPS in this study have been constructed and put into operation only within the past 2.5 to 5 years. One system has been in operation and monitored for more than nine years. AIkalinity due to sulfate reduction was highest during the first two summers of operation. Alkalinity due to a limestone dissolution has been consistent throughout the life of the system. For the six RAPS in this study, sulfate reduction contributed an average of 28% of the total alkalinity. Rate of total alkalinity generation range from 15.6 gd''rn-'to 62.4 gd-'mL2 and were dependent on influent water quality and contact time. |
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Tampa |
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Proceedings, 17th Annual National Meeting – American Society for Surface Mining and Reclamation |
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| Notes |
Long-Term Perpormance of Alkalinity-Producing Passive Systems for the Treatment of Mine Drainage; 2; VORHANDEN | AMD ISI | Wolkersdorfer; als Datei vorhanden 4 Abb., 5 Tab. |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17440 |
Serial |
216 |
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| Author |
Ordónez, A.; Loredo, J.; Pendás, F. |
| Title |
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Type |
Book Whole |
| Year |
1999 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
575-580 |
| Keywords |
hydrogeology mining water acid mine drainage treatment SAPS successive alkalinity producing system ALD anoxic limestone drainage |
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| Publisher |
International Mine Water Association |
Place of Publication |
Ii |
Editor |
Fernández Rubio, R. |
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Original Title |
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Series Title |
Mine, Water & Environment |
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| Notes |
A Successive Alkalinity Producing System (SAPS) as operational Unit in a Hybrid Passive Treatment System for Acid Mine Drainage; 1; AMD ISI | Wolkersdorfer; FG 'de' 5 Abb., 4 Tab. |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 9836 |
Serial |
277 |
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| Author |
Benner, S.G.; Blowes, D.W.; Ptacek, C.J. |
| Title |
A full-scale porous reactive wall for prevention of acid mine drainage |
Type |
Journal Article |
| Year |
1997 |
Publication |
Ground Water Monitoring and Remediation |
Abbreviated Journal |
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| Volume |
17 |
Issue |
4 |
Pages |
99-107 |
| Keywords |
acid mine drainage alkalinity bacteria Canada case studies concentration dissolved materials drainage Eastern Canada ground water mines observation wells Ontario permeability pH pollution porous materials recharge reduction remediation site exploration Sudbury District Ontario sulfate ion surface water waste disposal water pollution Groundwater quality Groundwater problems and environmental effects Pollution and waste management non radioactive geographical abstracts: physical geography hydrology (71 6 11) geomechanics abstracts: excavations (77 10 10) geological abstracts: environmental geology (72 14 2) groundwater protection permeable barrier acid mine drainage aquifer groundwater acid min drainage contamination permeable barrier groundwater protection permeable barrier acid mine drainage aquifer Canada, Ontario, Sudbury, Nickel Rim |
| Abstract |
The generation and release of acidic drainage containing high concentrations of dissolved metals from decommissioned mine wastes is an environmental problem of international scale. A potential solution to many acid drainage problem is the installation of permeable reactive walls into aquifers affected by drainage water derived from mine waste materials. A permeable reactive wall installed into an aquifer impacted by low-quality mine drainage waters was installed in August 1995 at the Nickel Rim mine site near Sudbury, Ontario. The reactive mixture, containing organic matter, was designed to promote bacterially mediated sulfate reduction and subsequent metal sulfide precipitation. The reactive wall is installed to an average depth of 12 feet (3.6 m) and is 49 feet (15 m) long perpendicular to ground water flow. The wall thickness (flow path length) is 13 feet (4 m). Initial results, collected nine months after installation, indicate that sulfate reduction and metal sulfide precipitation is occurring. Comparing water entering the wall to treated water existing the wall, sulfate concentrations decrease from 2400 to 4600 mg/L to 200 to 3600 mg/L; Fe concentration decrease from 250 to 1300 mg/L to 1.0 to 40 mg/L, pH increases from 5.8 to 7.0; and alkalinity (as CaCO<inf>3</inf>) increases from 0 to 50 mg/L to 600 to 2000 mg/L. The reactive wall has effectively removed the capacity of the ground water to generate acidity on discharge to the surface. Calculations based on comparison to previously run laboratory column experiments indicate that the reactive wall has potential to remain effective for at least 15 years. |
| Address |
Dr. S.G. Benner, Earth Sciences Department, University of Waterloo, Waterloo, Ont. N2L 3G1, Canada |
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1069-3629 |
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| Notes |
Review; A full-scale porous reactive wall for prevention of acid mine drainage; 0337197; United-States 46; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/10621.pdf; Geobase |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17555 |
Serial |
67 |
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| Author |
Kuyucak, N. |
| Title |
Acid mine drainage; treatment options for mining effluents |
Type |
Journal Article |
| Year |
2001 |
Publication |
Mining Environmental Management |
Abbreviated Journal |
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| Volume |
9 |
Issue |
2 |
Pages |
12-15 |
| Keywords |
acid mine drainage; alkalinity; cadmium; chemical reactions; copper; cyanides; decontamination; degradation; effluents; flotation; heavy metals; lead; lime; metals; mines; nickel; oxidation; pH; physicochemical properties; pollution; reagents; reduction; remediation; seepage; sludge; solid waste; solvents; stability; tailings; toxic materials; toxicity; waste disposal; water quality; zinc |
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Edition |
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0969-4218 |
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| Notes |
Acid mine drainage; treatment options for mining effluents; 2001-050827; References: 23; illus. United Kingdom (GBR); GeoRef; English |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 5723 |
Serial |
324 |
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| Author |
Jage, C.R.; Zipper, C.E. |
| Title |
Acid-mine drainage treatment using successive alkalinity-producing systems |
Type |
RPT |
| Year |
2000 |
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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| Keywords |
acid mine drainage; alkalinity; Appalachians; carbonate rocks; decontamination; dissolved materials; dissolved oxygen; limestone; North America; oxygen; pH; pollution; reclamation; sedimentary rocks; United States; Virginia; waste management; water treatment 22, Environmental geology |
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Virginia Polytechnic Institute and State University, P.R.P.B.V.A.U.S. |
Series Title |
Powell River Project research and education program reports |
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Acid-mine drainage treatment using successive alkalinity-producing systems; 2002-029549; GeoRef; English; References: 12; illus. incl. 2 tables U. S. Geological Survey, Library, Reston, VA, United States |
Approved |
no |
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CBU @ c.wolke @ 5882 |
Serial |
343 |
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