| Records |
| Author |
Mustikkamaki, U.-P. |
| Title |
Metallipitoisten vesien biologisesta kasittelysta Outokummun kaivoksilla. Metal content treated with biological methods at the Outokummun operation |
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Journal Article |
| Year |
2000 |
Publication |
Vuoriteollisuus = Bergshanteringen |
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| Volume |
58 |
Issue |
1 |
Pages |
44-47 |
| Keywords |
acid mine drainage anaerobic environment bacteria biodegradation environmental analysis Europe filters Finland metals Outokummun Mine peat pollutants pollution reduction Scandinavia sediments sulfate ion Western Europe zinc 22, Environmental geology |
| Abstract |
Acid mine drainage (AMD) is one of the most serious environmental problems in the metal-mining industry. AMD is formed by the chemical and bacterial oxidation of sulphide minerals, and it is characterized by low pH values and high sulphate and metals content. The most common method to treat AMD is chemical neutralization. The chemical treatment requires high capital and operating costs and its use is problematic at the closed mines sites. Outokumpu has studied and used sulphate reducing bacteria (SRB) as an alternative method for the treatment of AMD. SRB existing in many natural anaerobic aqueous environments can reduce sulphate to sulphide which precipitates metals as extremely insoluble metal sulphides. Full scale experiments were begun in summer 1995 in the Ruostesuo open pit (depth 46 m) by adding liquid manure as a source of bacteria and press-juice as a growth substrate. The average Zn content of the whole column has decreased from 3,5 mg/l to 0,8 mg/l and below 25 m zinc is 0 mg/l. Similar results have been reached with nickel in the Kotalahti old nickel mine, where bacteria were brought in 1996. We have found that the same bacterial mechanism acts in peat-limestone filters, which Outokumpu has built at several mine sites since 1993. |
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0042-9317 |
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Metallipitoisten vesien biologisesta kasittelysta Outokummun kaivoksilla. Metal content treated with biological methods at the Outokummun operation; 2001-069868; illus. incl. 3 tables Finland (FIN); GeoRef; Finnish |
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| Call Number |
CBU @ c.wolke @ 16560 |
Serial |
291 |
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| Author |
Anonymous |
| Title |
Gewässerschutz im Tagebau – sauberes Wasser in den Bach |
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Journal Article |
| Year |
1994 |
Publication |
Steinbruch und Sandgrube |
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| Volume |
87 |
Issue |
4 |
Pages |
32-33 |
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Tagebau Ton=Mineral Grubenentwässerung Abwasserbehandlung Absetzbecken |
| Abstract |
In Tontagebauen sammelt man die durch Tonteilchen verunreinigten Niederschlagsmengen am tiefsten Punkt des Tagebaus und pumpt sie zur Reinigung ab, bevor sie dem normalen Wasserkreislauf wieder zugeführt werden. Die sedimentative Reinigung geschieht durch Tagebausumpf, Beruhigungsbecken und Absetzbecken mit Gegenstromprinzip. Im Tagebau Ludwig Hirsch der Firma Fuchs treten saubere, klare Niederschlagswässer oberflächennah am Tagebaurand aus. Sie werden zwischenzeitlich in Betonschächten gefaßt und über den nahen Vorfluter einem Gewässer dritter Ordnung zugeleitet. Damit werden die Erosion der Tagebauböschung verhindert, der Zentralsumpf entlastet und die Verschleißkosten an Pumpen reduziert. Die Pumpenschächte des Klarwassers werden in die Rückverfüllung eingebunden und so ausgebaut, daß langfristig ein störungsfreies Zufließen gewährleistet ist. Zum Schluß der Rekultivierung werden sie verfüllt. |
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0039-1018 |
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Gewässerschutz im Tagebau – sauberes Wasser in den Bach; 6142, BERG , 01.01.94; Words: 278; M9406 6245 586; 2 Seiten, 5 Bilder 3MZ *Bergbau, Tunnelbau, Erdöl /Erdgasförderung, Bohrtechnik* 3UXX *Belastung von Wasser, Wasserreinhaltung, Abwasser*; BERG, Copyright FIZ Technik e.V.; DE Deutsch |
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CBU @ c.wolke @ 17611 |
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483 |
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| Author |
White, R.T. |
| Title |
Water-treatment Practice in South-african Gold-mines |
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Journal Article |
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1985 |
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J. S. Afr. Inst. Min. Metall. |
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85 |
Issue |
3 |
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81-87 |
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mine water |
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0038-223x |
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Water-treatment Practice in South-african Gold-mines; Isi:A1985akk0500002; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 9957 |
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214 |
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Karl, D.J.; Rolsten, R.F.; Carmody, G.A.; Karl, M.E. |
| Title |
Treatment of Acid-mine Drainage Water with Alkaline By-products and Lime Blends |
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Journal Article |
| Year |
1983 |
Publication |
Ohio J. Sci. |
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| Volume |
83 |
Issue |
2 |
Pages |
36 |
| Keywords |
mine water treatment |
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0030-0950 |
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Treatment of Acid-mine Drainage Water with Alkaline By-products and Lime Blends; Isi:A1983qk50900121; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 9720 |
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94 |
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| Author |
Yernberg, W.R. |
| Title |
Improvements seen in acid-mine-drainage technology |
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Journal Article |
| Year |
2000 |
Publication |
Min. Eng. |
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52 |
Issue |
9 |
Pages |
67-70 |
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acid mine drainage; bacteria; chemical weathering; coal mines; Colorado; copper ores; effects; geochemistry; hydrogen; inorganic acids; international cooperation; ions; lead ores; medical geology; metal ores; mines; molybdenum ores; oxidation; pH; pollution; prediction; pyrite; reclamation; remediation; research; risk assessment; silicates; soil treatment; solid waste; sulfides; sulfuric acid; Summitville Mine; tailings; tailings ponds; technology; United States; waste disposal; weathering; zinc ores 22, Environmental geology |
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0026-5187 |
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Improvements seen in acid-mine-drainage technology; 2000-069686; illus. incl. sect., sketch map United States (USA); GeoRef; English |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 5808 |
Serial |
73 |
| Permanent link to this record |
