Records |
Author |
Potgieter-Vermaak, S.S.; Potgieter, J.H.; Monama, P.; Van Grieken, R. |
Title |
Comparison of limestone, dolomite and fly ash as pre-treatment agents for acid mine drainage |
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Journal Article |
Year |
2006 |
Publication ![sorted by Publication field, ascending order (up)](img/sort_asc.gif) |
Minerals Engineering |
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Volume |
19 |
Issue |
5 |
Pages |
454-462 |
Keywords |
Acid rock drainage Mining Tailings Environmental |
Abstract |
The physical, chemical and biological nature of Vaal Dam water, the main source of water in Gauteng, South Africa, is often affected by underground water pollution (acid mine water) and industrial effluents. The ecological significance and detrimental effects necessitate investigations into treating the water prior to discharge into public streams. Although several acid mine water treatment techniques and methods exist, they all have certain disadvantages. Lime treatment is the most common approach. In this investigation, limestone, dolomite and fly ash were selected as pre-treatment agents based on their low cost. Simulated acid mine water containing these agents was tested using a Jar Test apparatus. Samples were analyzed before and after treatment for pH, ferrous, ferric, calcium, magnesium and sulphate ions. The study demonstrated that the quality of the water improved with an increase in the amount and surface area of the raw material dosed and an increase in contact time. It was also influenced by the chemical composition of the acid mine water and aeration. Chemical cost savings of 38% are achieved when lime is replaced with limestone, and cost savings of 23% and 48% can be accomplished when limestone is substituted with dolomite and fly ash respectively. This could result in significant savings to the gold and coal mining industries, and could lead to a mutual benefit/gain between industrialists/polluters and the public. |
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0892-6875 |
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Apr.; Comparison of limestone, dolomite and fly ash as pre-treatment agents for acid mine drainage; Science Direct |
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CBU @ c.wolke @ 17461 |
Serial |
42 |
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Author |
Gazea, B.; Adam, K.; Kontopoulos, A. |
Title |
A review of passive systems for the treatment of acid mine drainage |
Type |
Journal Article |
Year |
1996 |
Publication ![sorted by Publication field, ascending order (up)](img/sort_asc.gif) |
Minerals Engineering |
Abbreviated Journal |
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Volume |
9 |
Issue |
1 |
Pages |
23-42 |
Keywords |
Acid rock drainage bacteria environmental pollution |
Abstract |
This review presents the current state of development of the passive mine water treatment technologies. The background of passive treatment is reviewed and the chemical and biological processes involved in metals removal and acidity neutralisation are detailed. The types of currently existing passive treatment technologies and their applicability range as defined by the mine water chemistry are presented. Finally, the performance of passive systems constructed for the treatment of acid mine drainage from both coal and sulphide metal mines is summarised. |
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0892-6875 |
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Jan.; A review of passive systems for the treatment of acid mine drainage; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/10076.pdf; Science Direct |
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CBU @ c.wolke @ 17468 |
Serial |
43 |
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Author |
Taylor, J.; Waters, J. |
Title |
Treating ARD; how, when, where and why |
Type |
Journal Article |
Year |
2003 |
Publication ![sorted by Publication field, ascending order (up)](img/sort_asc.gif) |
Mining Environmental Management |
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Volume |
11 |
Issue |
3 |
Pages |
6-9 |
Keywords |
acid mine drainage; acid rock drainage; acidification; alkalinity; carbonate rocks; chemical properties; chemical reactions; coal; disposal barriers; economics; flocculation; ground water; heavy metals; human activity; ion exchange; limestone; mines; oxidation; oxides; permeability; pollution; porosity; pyrolusite; remediation; sedimentary rocks; surface water; waste disposal; waste management; water pollution; water treatment; wetlands 22, Environmental geology |
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0969-4218 |
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Treating ARD; how, when, where and why; 2004-045038; References: 8; illus. incl. 2 tables United Kingdom (GBR); GeoRef; English |
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CBU @ c.wolke @ 5528 |
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225 |
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Author |
Tabak, H.H.; Govind, R. |
Title |
Advances in biotreatment of acid mine drainage and biorecovery of metals 19th annual international conference on Soils, sediments, and water; abstracts |
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Book Chapter |
Year |
2004 |
Publication ![sorted by Publication field, ascending order (up)](img/sort_asc.gif) |
Soil & Sediment Contamination |
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171-172 |
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acid mine drainage; acid rock drainage; acidification; bacteria; biodegradation; bioreactors; bioremediation; decontamination; effluents; geomembranes; heavy metals; pollutants; pollution; remediation; sulfate reducing bacteria; sulfates; sulfides; Thiobacillus; waste water 22, Environmental geology |
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Advances in biotreatment of acid mine drainage and biorecovery of metals 19th annual international conference on Soils, sediments, and water; abstracts; GeoRef; English; 2006-064109; 19th annual international conference on Soils, sediments, and water, Amherst, MA, United States, Oct. 20-23, 2003 |
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Call Number |
CBU @ c.wolke @ 5471 |
Serial |
13 |
Permanent link to this record |