| Records |
Author  |
Chen, M.; Li, L.; Grace, J.; Tazaki, K.; Shiraki, K.; Asada, R.; Watanabe, H. |
| Title |
Remediation of acid rock drainage by regenerable natural clinoptilolite |
Type |
Journal Article |
| Year |
2007 |
Publication |
Water, Air, Soil Pollut. |
Abbreviated Journal |
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| Volume |
180 |
Issue |
1-4 |
Pages |
11-27 |
| Keywords |
mine water treatment |
| Abstract |
Clinoptilolite is investigated as a possible regenerable sorbent for acid rock drainage based on its adsorption capacity for Zn, adsorption kinetics, effect of pH, and regeneration performance. Adsorption of Zn ions depends on the initial concentration and pH. Adsorption/Desorption of Zn reached 75% of capacity after 1-2 h. Desorption depended on pH, with an optimum range of 2.5 to 4.0. The rank of desorption effectiveness was EDTAEDTA > NaCl > NaNO3 > NaOAc > NaHCO3 > Na2CO3 > NaOH > CeCa(OH)(2). For cyclic absorption/desorption, adsorption remained satisfactory for six to nine regenerations with EDTA and NaCl, respectively. The crystallinity and morphology of clinoptilolite remained intact following 10 regeneration cycles. Clinoptilolite appears to be promising for ARD leachate treatment, with significant potential advantages relative to current treatment systems. |
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Edition |
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| ISSN |
0049-6979 |
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| Notes |
Mar; Remediation of acid rock drainage by regenerable natural clinoptilolite; Wos:000244030000003; Times Cited: 0; ISI Web of Science |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 7319 |
Serial |
17 |
| Permanent link to this record |
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| Author |
Ettner, D.C. |
| Title |
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Type |
Book Whole |
| Year |
2007 |
Publication |
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Abbreviated Journal |
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Issue |
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Pages |
187-191 |
| Keywords |
Passiv Mine Water Treatment alternative remediation technologies Kongens Mine Roros Folldal Mines Titania's tailings impoundment Storgangen Mine |
| Abstract |
Previous mining history in Norway has resulted in ongoing release of acid mine drainage. Preservation of the historical sites in mining areas does not allow for remediation technologies that result in significant alteration of the historical landscape. Therefore, alternative remediation techniques such as passive mine water treatment have been tested. The climate in Norway varies from mild coastal climates to artic climates, and one of the challenges with passive treatment systems is the cold winter conditions. Anaerobic treatment systems have been built at Kongens Mine near Røros, at Folldal mines, and at Titania's tailings impoundment near Storgangen Mine. These systems utilize sulfate-reducing bacteria that result in the precipitation of metal sulfides. A full- and pilot-scale system at Kongens Mine and Folldal were built in 2006 to remove copper and zinc from typical ARD in an alpine climate. Previous testing with pilot scale systems at Kongens Mine showed that up to 85% copper and 48% zinc could be removed. At Titania A/S the anaerobic system is designed to remove nickel from neutral waters. At this system over 90% nickel is removed when water flow is regulated at a constant flow. Testing shows that the system can function in cold winter conditions, however, optimal metal removal is achieved under warmer temperatures. Temperatures changes by global climatic warming will not adversely affect these anaerobic systems. However, extreme precipitation events and the resulting rapid fluctuations of ARD runoff will provide a challenge for the effectiveness of these systems. |
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Mako Edizioni |
Place of Publication |
Cagliari |
Editor |
Cidu, R.; Frau, F. |
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Original Title |
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Series Title |
Water in Mining Environments |
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ISBN |
978-88-902955-0-8 |
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| Notes |
Passive Mine Water Treatment in Norway; 1; VORHANDEN | AMD ISI | Wolkersdorfer; als Datei vorhanden 3 Abb., 2 Tab. |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17338 |
Serial |
387 |
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| Author |
Sapsford, D.; Barnes, A.; Dey, M.; Williams, K.; Jarvis, A.; Younger, P. |
| Title |
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Type |
Book Whole |
| Year |
2007 |
Publication |
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Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
261-265 |
| Keywords |
passive treatment iron mine water |
| Abstract |
This paper presents iron removal data from a novel low footprint mine water treatment system. The paper discusses possible design configurations and demonstrates that the system could treat 1 L/s of mine water containing 8.4 mg/L of iron to < 1 mg/L with a system footprint of 66 m2. A conventional lagoon and aerobic wetland system would require at least 160 m2 to achieve the same treatment. Other advantages of the system are that it produces a clean and dense sludge amenable to on-site storage and possible recycling and that heavy plant will generally not be required for construction. |
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Thesis |
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Mako Edizioni |
Place of Publication |
Cagliari |
Editor |
Cidu, R.; Frau, F. |
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Summary Language |
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Original Title |
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Series Title |
Water in Mining Environments |
Abbreviated Series Title |
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ISBN |
978-88-902955-0-8 |
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Conference |
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| Notes |
Low Footprint Mine Water Treatment: Field Demonstration and Application; 2; VORHANDEN | AMD ISI | Wolkersdorfer; als Datei vorhanden 2 Abb., 2 Tab. |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17416 |
Serial |
255 |
| Permanent link to this record |
