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Author |
Laine, D.M. |
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Year |
1999 |
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581-584 |
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Keywords |
hydrogeology mining water treatment quality hydroxide flow pumping hydrochemistry sedimentation wetland |
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Publisher |
International Mine Water Association |
Place of Publication |
Ii |
Editor |
Fernández Rubio, R. |
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Series Title |
Mine, Water & Environment |
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Remediation of the Old Meadows Gravity Minewater Discharge; 1; AMD ISI | Wolkersdorfer; FG 'de' 5 Abb., 1 Tab. |
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Call Number |
CBU @ c.wolke @ 9757 |
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320 |
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Author |
Kuyucak, N.; Lindvall, M.; Rufo Serrano, J.A.; Oliva, A.F. |
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Year |
1999 |
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Pages |
473-479 |
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Keywords |
HDS lime sludge mine water treatment |
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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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International Mine Water Association |
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Editor |
Fernández Rubio, R. |
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Series Title |
Mine, Water & Environment |
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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. |
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Call Number |
CBU @ c.wolke @ 9751 |
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322 |
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Author |
Kleinmann, R.; Majumdar, S.K.; Miller, E.W.; Brenner, F.J. |
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1998 |
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497-509 |
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Keywords |
abandoned mines; acid mine drainage; coal mines; constructed wetlands; drainage; environmental effects; mines; mitigation; pollutants; pollution; remediation; surface water; toxic materials; water quality; water treatment; wetlands 22, Environmental geology |
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The Pennsylvania Academy of Science Book Publications |
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25 |
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Series Title |
Ecology of wetlands and associated systems |
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Constructing wetlands for passive treatment of coal mine drainage; 2002-024212; GeoRef; English; References: 27; illus. incl. 2 tables United States (USA) |
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Call Number |
CBU @ c.wolke @ 6210 |
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330 |
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Author |
Kingham, N.W.; Semenak, R.; Powell, G.; Way, S. |
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Reverse osmosis coupled with chemical precipitation treatment of acid mine leachate at the Basin-Luttrell Pit, Ten Mile Creek Site, Lewis and Clark County, Montana Hardrock mining 2002; issues shaping the industry |
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Year |
2002 |
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acid mine drainage; Basin-Luttrell Pit; cost; environmental effects; leachate; Lewis and Clark County Montana; metals; Montana; osmosis; pollutants; pollution; precipitation; reverse osmosis; soils; sulfates; tailings; Ten Mile Creek; United States; waste rock; waste water; water treatment 22, Environmental geology |
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Reverse osmosis coupled with chemical precipitation treatment of acid mine leachate at the Basin-Luttrell Pit, Ten Mile Creek Site, Lewis and Clark County, Montana Hardrock mining 2002; issues shaping the industry; GeoRef; English; 2007-046128; 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 |
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Call Number |
CBU @ c.wolke @ 5610 |
Serial |
331 |
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Author |
Jage, C.R.; Zipper, C.E. |
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Title |
Acid-mine drainage treatment using successive alkalinity-producing systems |
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RPT |
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Year |
2000 |
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Abbreviated Journal |
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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. |
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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 |
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Call Number |
CBU @ c.wolke @ 5882 |
Serial |
343 |
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