| Records |
| Author |
Conca, J.L.; Wright, J. |
| Title |
An Apatite II permeable reactive barrier to remediate groundwater containing Zn, Pb and Cd |
Type |
Journal Article |
Year  |
2006 |
Publication |
Appl. Geochem. |
Abbreviated Journal |
|
| Volume |
21 |
Issue |
12 |
Pages |
2188-2200 |
| Keywords |
Pollution and waste management non radioactive Groundwater quality apatite groundwater remediation zinc lead cadmium acid mine drainage copper sulfate nitrate permeability water treatment precipitation chemistry |
| Abstract |
Phosphate-induced metal stabilization involving the reactive medium Apatite II(TM) [Ca10-xNax(PO4)6-x(CO3)x(OH)2], where x < 1, was used in a subsurface permeable reactive barrier (PRB) to treat acid mine drainage in a shallow alluvial groundwater containing elevated concentrations of Zn, Pb, Cd, Cu, SO4 and NO3. The groundwater is treated in situ before it enters the East Fork of Ninemile Creek, a tributary to the Coeur d'Alene River, Idaho. Microbially mediated SO4 reduction and the subsequent precipitation of sphalerite [ZnS] is the primary mechanism occurring for immobilization of Zn and Cd. Precipitation of pyromorphite [Pb10(PO4)6(OH,Cl)2] is the most likely mechanism for immobilization of Pb. Precipitation is occurring directly on the original Apatite II. The emplaced PRB has been operating successfully since January of 2001, and has reduced the concentrations of Cd and Pb to below detection (2 μg L-1), has reduced Zn to near background in this region (about 100 μg L-1), and has reduced SO4 by between 100 and 200 mg L-1 and NO3 to below detection (50 μg L-1). The PRB, filled with 90 tonnes of Apatite II, has removed about 4550 kg of Zn, 91 kg of Pb and 45 kg of Cd, but 90% of the immobilization is occurring in the first 20% of the barrier, wherein the reactive media now contain up to 25 wt% Zn. Field observations indicate that about 30% of the Apatite II material is spent (consumed). |
| 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 |
0883-2927 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Dec.; An Apatite II permeable reactive barrier to remediate groundwater containing Zn, Pb and Cd; Science Direct |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17248 |
Serial |
44 |
| Permanent link to this record |
| |
|
| |
| Author |
Fisher, T.S.R.; Lawrence, G.A. |
| Title |
Treatment of acid rock drainage in a meromictic mine pit lake |
Type |
Journal Article |
| Year |
2006 |
Publication |
Journal of environmental engineering |
Abbreviated Journal |
|
| Volume |
132 |
Issue |
4 |
Pages |
515-526 |
| 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) meromictic lake acid mine drainage mine waste copper water pollution Bacteria microorganisms Canada Vancouver Island British Columbia North America |
| Abstract |
The Island Copper Mine pit near Port Hardy, Vancouver Island, B.C., Canada, was flooded in 1996 with seawater and capped with fresh water to form a meromictic (permanently stratified) pit lake of maximum depth 350 m and surface area 1.72 km2. The pit lake is being developed as a treatment system for acid rock drainage. The physical structure and water quality has developed into three distinct layers: a brackish and well-mixed upper layer; a plume stirred intermediate layer; and a thermally convecting lower layer. Concentrations of dissolved metals have been maintained well below permit limits by fertilization of the surface waters. The initial mine closure plan proposed removal of heavy metals by metal-sulfide precipitation via anaerobic sulfate-reducing bacteria, once anoxic conditions were established in the intermediate and lower layers. Anoxia has been achieved in the lower layer, but oxygen consumption rates have been less than initially predicted, and anoxia has yet to be achieved in the intermediate layer. If anoxia can be permanently established in the intermediate layer then biogeochemical removal rates may be high enough that fertilization may no longer be necessary. < copyright > 2006 ASCE. |
| Address |
Prof. G.A. Lawrence, Univ. of British Columbia, Vancouver, BC V6T 1Z4, Canada lawrence@civil.ubc.ca |
| 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 |
0733-9372 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Apr.; Treatment of acid rock drainage in a meromictic mine pit lake; 2873922; United-States 38; Geobase |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17494 |
Serial |
72 |
| Permanent link to this record |
| |
|
| |
| Author |
Ayala, J.; Fernández, B. |
| Title |
|
Type |
Book Whole |
| Year |
2005 |
Publication |
|
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
649-654 |
| Keywords |
flying ash copper cyanide gold mine tailing ponds detoxification |
| Abstract |
The objective of this study was to examine the use of flying ash to remove the copper cyanide species from gold mine effluents. In order to discharge them safely with minimum impact to the environment the effluents must be treated in such a way that the legal conditions were attained with the lowest possible cost. This paper presents the treatment of cyanide solution originating from tailing ponds at the end of detoxification by direct contact with flying ash. |
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
University of Oviedo |
Place of Publication |
Oviedo |
Editor |
Loredo, J.; Pendás, F. |
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
Mine Water 2005 – Mine Closure |
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
84-689-3415-1 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
Adsorption of copper cyanide species from tailings pond on flying ash; 1; AMD ISI | Wolkersdorfer; FG 'aha' 4 Abb., 6 Tab. |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17296 |
Serial |
472 |
| Permanent link to this record |
| |
|
| |
| Author |
Bolzicco, J.; Carrera, J.; Ayora, C. |
| 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 |
Type |
Journal Article |
| Year |
2004 |
Publication |
Revista Latino-Americana de Hidrogeologia |
Abbreviated Journal |
|
| Volume |
4 |
Issue |
|
Pages |
27-34 |
| Keywords |
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 |
| 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. |
| 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 |
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 |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16471 |
Serial |
443 |
| Permanent link to this record |
| |
|
| |
| Author |
Al-Abed, S.; Allen, D.; Bates, E.; Reisman, D. |
| Title |
Lime treatment lagoons technology for treating acid mine drainage from two mining sites |
Type |
Journal Article |
| Year |
2002 |
Publication |
|
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
|
| Keywords |
acid mine drainage; case studies; Copper Mine; drainage; geochemistry; heavy metals; hydrochemistry; Leviathan Mine; mining; Nevada; pH; pollutants; pollution; precipitation; remediation; runoff; surface water; Tennessee; United States; waste lagoons; water treatment 22 Environmental geology; 02B Hydrochemistry |
| Abstract |
|
| Address |
|
| Corporate Author |
|
Thesis |
|
| Publisher |
|
Place of Publication |
|
Editor |
|
| Language |
|
Summary Language |
|
Original Title |
|
| Series Editor |
|
Series Title |
Hardrock mining 2002; issues shaping the industry |
Abbreviated Series Title |
|
| Series Volume |
|
Series Issue |
|
Edition |
|
| ISSN |
|
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
2007-046170; Hardrock mining 2002; issues shaping the industry, Westminster, CO, United States, May 7-9, 2002 U. S. Environmental Protection Agency, Office of Research and Development, Washington, DC, United States; GeoRef; English |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 5621 |
Serial |
487 |
| Permanent link to this record |
