| Records |
| Author |
Zinck, J. |
Title  |
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Type |
Book Whole |
| Year |
2006 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
2604-2617 |
| Keywords |
mine water lime treatment high density sludge process co-disposal sludge stability pond disposal backfill leaching mine reclamation |
| Abstract |
Sludge management is an escalating concern as the inventory of sludge continues to grow through perpetual “pump and treat” of acidic waters at mine sites. Current sludge management practices, in general, are ad hoc and frequently do not adress long-term storage, and in some cases, long-term stability. While a variety of sludge disposal practices have been applied, many have not been fully investigated and monitoring data on the performance of these technologies is limited and not readily available. This paper discusses options for treatment sludge management including conventionale disposal technologies and options for reclamation of sludge areas. |
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| Publisher |
Proceedings, International Conference of Acid Rock Drainage (ICARD) |
Place of Publication |
St. Louis |
Editor |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
Icard 2006 |
Abbreviated Series Title |
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Series Issue |
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Edition |
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| Notes |
Disposal, reprocessing and reuse options for acidic drainage treatment sludge; 2; AMD ISI | Wolkersdorfer; 2 Abb. |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17455 |
Serial |
184 |
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| 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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Place of Publication |
Tampa |
Editor |
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Series Title |
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 |
| Abstract |
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Thesis |
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| Publisher |
International Mine Water Association |
Place of Publication |
Ii |
Editor |
Fernández Rubio, R. |
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Summary Language |
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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 |
Kuyucak, N.; Lindvall, M.; Rufo Serrano, J.A.; Oliva, A.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 |
473-479 |
| Keywords |
HDS lime sludge mine water treatment |
| Abstract |
Lime neutralization is a frequently used method in the mining industry for the treatment of acid waters. These waters contain metal ions such as zinc, manganese, copper, cadmium, lead, etc. The conventional, straight lime neutralization technology generates a Low Density Sludge (LDS) having only 1-2% solids content. This creates sludge disposal difficulties, and results in the loss of potentially large quantities of recovered water, which in turn increases the demand for fresh water requirements for mining/milling activities. The High Density Sludge (HDS) process, on the other hand, is the state-of-the-art technology in North America. It generates a dense sludge with less volume and better particulate properties. Furthermore, the typical gelatinous nature of the sludge changes to a granulated, sand-like texture. Boliden Apirsa, S.L. investigated the feasibility of an HDS process to increase the treatment capacity of their existing plant, and resolve the issues associated with the LDS process for their Los Frailes project. The project required, given that the production of ore was going to be doubled, a significant increase in water was needed without altering the water reservoir sitting north of the concentrator. In addition, the final effluent quality was a priority issue. First, a pilot-scale study was undertaken in 1996, and parameters critical to the design and performance of the process were determined. The results showed that the HDS process could significantly improve the sludge characteristics by increasing the solids fraction from 1.5 to 12.0%, thereby decreasing the sludge volume to be disposed to the tailings ponds by a factor of 10. A full-scale, HDS lime neutralization treatment plant for an average flow rate of 1500 m3/hr was designed and was commissioned in early 1998 in collaboration with Colder Associates, Ottawa, Canada. So far, the full-scale treatment plant has been generating a sludge with more than 30% solids content, exceeding its target value of 12% solids. It produces excellent effluent quality, and scaling in the handling equipment is virtually eliminated. The sludge has dense, easily settable granular particles rather than fluffy flocs, yet has low viscosity that facilitates its unassisted gravity flow. The process has resulted in an increase in the treated water volume. The rate of lime consumption per unit volume of water treated also decreased. The process principles and the steps taken in process development will be discussed and the results obtained to date will be summarized in this communication. |
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Thesis |
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| Publisher |
International Mine Water Association |
Place of Publication |
Ii |
Editor |
Fernández Rubio, R. |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
Mine, Water & Environment |
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| Notes |
Implementation of a High Density Sludge “HDS” Treatment Process at the Boliden Apirsa Mine Site; 1; VORHANDEN | AMD ISI | Wolkersdorfer; FG als Datei vorhanden 4 Abb., 4 Tab. |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 9751 |
Serial |
322 |
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| Author |
Skousen, J.; Jenkins, M. |
| Title |
Acid mine drainage treatment costs with calcium oxide and the Aquafix machine |
Type |
Journal Article |
| Year |
2001 |
Publication |
Green Lands |
Abbreviated Journal |
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| Volume |
31 |
Issue |
3 |
Pages |
46-51 |
| Keywords |
acid mine drainage; chemical composition; Clay County West Virginia; coal mines; cost; decontamination; ground water; instruments; lime; Mary Ruth Mines; mines; pollution; Preston County West Virginia; remediation; sludge; surface water; techniques; United States; water pollution; water treatment; West Virginia 22, Environmental geology |
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Series Title |
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Series Issue |
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Edition |
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| ISSN |
0271-0110 |
ISBN |
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Expedition |
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| Notes |
Acid mine drainage treatment costs with calcium oxide and the Aquafix machine; 2002-045348; illus. United States (USA); GeoRef; English |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 5759 |
Serial |
246 |
| Permanent link to this record |
