| Records |
| Author |
Märten, H. |
| Title |
Neueste Trends zur aktiven Wasserbehandlung und Anwendungsbeispiele |
Type |
Journal Article |
| Year |
2006 |
Publication  |
Wissenschaftliche Mitteilungen |
Abbreviated Journal |
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| Volume |
31 |
Issue |
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Pages |
13-22 |
| Keywords |
Wasserbehandlung AMD Acidic Mine Drainage In-situ-Laugung ISL Tagebaurestsee |
| Abstract |
Aktuelle Entwicklungen auf dem Gebiet der aktiven Wasserbehandlung im Bergbau in den spezifischen Anwendungsgebieten • Behandlung von sauren Bergbauwässern (AMD – acidic mine drainage) mit Schwerpunkt HDS-Technologie (HDS – high-density sludge) • In-situ-Behandlung bergbaubeeinflusster Grundwasserkörper, insbesondere nach Anwendung der In-situ-Laugung (ISL) • In-situ-Behandlung von Tagebaurestseen mit Schwerpunkt In-lake-Verfahren werden hinsichtlich Machbarkeit, technologischer Kenngrößen und Effizienz bewertet und kommen-tiert. Recent developments in the field of active water treatment technologies in the mining sector are re-viewed. Application areas of interest include • Treatment of acidic mine drainage (AMD) emphasizing HDS technology (HDS – high-density sludge) • In-situ treatment of groundwater affected by mining, in particular after the application of in-situ leaching (ISL) • In-situ treatment of lakes arising in former open-pit lignite mines, in particular the application of in-lake methods The various applications are evaluated with regard to feasibility, technical characteristics and treat-ment efficiency. |
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1433-1284 |
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| Notes |
Neueste Trends zur aktiven Wasserbehandlung und Anwendungsbeispiele; 1; FG 'aha' 5 Abb.; AMD ISI | Wolkersdorfer |
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no |
| Call Number |
CBU @ c.wolke @ 17386 |
Serial |
308 |
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Janneck, E.; Schlee, K.; Arnold, I.; Glombitza, F. |
| Title |
Einsatz neuer Belüftungssysteme zur Effizienzsteigerung bei der Grubenwasserbehandlung in der Lausitz |
Type |
Journal Article |
| Year |
2006 |
Publication |
Wissenschaftliche Mitteilungen |
Abbreviated Journal |
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| Volume |
31 |
Issue |
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Pages |
29-35 |
| Keywords |
Grubenwasser Grubenwasserreinigungsanlage Schwarze Pumpe Eisenabtrennung Belüftung |
| Abstract |
Im Beitrag wird über Erfahrungen und Ergebnisse berichtet, wie durch den Einsatz neuer Belüftungssysteme eine deutliche Stabilisierung des Prozesses der Eisenabtrennung in der GWRA Schwarze Pumpe erreicht wurde. Erstmals wurden im Lausitzer Revier Wendelbelüfter im Prozess der Grubenwasserreinigung eingesetzt. Unter Bedingungen, bei denen die Sauerstoffdiffusion der geschwindigkeitsbestimmende Schritt ist, bewirken diese Geräte eine deutliche Beschleunigung der Eisenoxidation. Als zusätzliche Effekte, die zur Effizienzsteigerung der Grubenwasserbehandlung beitragen, können eine wesentliche Durchsatzsteigerung, eine bessere Kalkausnutzung sowie eine deutlich verbes-serte Schlammeindickung genannt werden. The article presents experiences and results of the application of new aerator-systems in the mine water treatment. The processes of ferrous iron oxidation and sludge removal became more stable and efficiently by the application of the aerators. For the first time, spiral aerators were used in the Lower Lusatia lignite mining district to clean ferrous iron containing mine water. These devices lead to an enhanced iron oxidation rate under the existing conditions, where the oxygen diffusion is the rate determining step. Furthermore, the application caused increased throughput, optimal lime utilisation and better sludge thickening, which led to a higher efficiency of the mine water treatment. |
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1433-1284 |
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Einsatz neuer Belüftungssysteme zur Effizienzsteigerung bei der Grubenwasserbehandlung in der Lausitz; 1; FG 'aha' 5 Abb., 1 Tab.; AMD ISI | Wolkersdorfer |
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no |
| Call Number |
CBU @ c.wolke @ 17357 |
Serial |
341 |
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World first: Full-scale BioSure plant commissioned |
Type |
Journal Article |
| Year |
2006 |
Publication |
Water Wheel |
Abbreviated Journal |
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| Volume |
5 |
Issue |
3 |
Pages |
19-21 |
| Keywords |
Waste Management and Pollution Policy geographical abstracts: human geography environmental planning (70 11 5) wastewater waste facility mine waste gold mine sewage treatment |
| Abstract |
ERWAT's Ancor Wastewater Treatment Works on the Far East Rand commissioned a 10 Ml/day full-scale plant to treat toxic mine-water from the Grootvlei gold mine using primary sewage sludge. The R15-million plant is treating sulphate rich acid mine drainage using the Rhodes BioSURE Process. First, the pumped mine-water is treated at a high-density separation (HDS) plant to remove iron and condition pH levels. Then it is pumped two km via a newly-constructed 10 Ml capacity pipeline to the Ancor works. This mine-water is then mixed together with primary sewage sludge in a mixing tank from where a splitter box directs the material to eight biological sulphate reducing reactors or bioreactors. The overflow water which is rich in sulphide is pumped through the main pump station to another mixing box. Here, iron slurry is mixed with the material before it is again divided between four reactor clarifiers for sulphide removal. The overflow water, now containing reduced sulphate levels and virtually no sulphide is pumped to Ancor's biofilters for removal of remaining Chemical Oxygen Demand (COD) and ammonia following the conventional sewage treatment process for eventual release into the Blesbokspruit. |
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0258-2244 |
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Trade-; World first: Full-scale BioSure plant commissioned; 2865725; South-Africa; Geobase |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17495 |
Serial |
494 |
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| Author |
Sierra-Alvarez, R. |
| Title |
Biological treatment of heavy metals in acid mine drainage using sulfate reducing bioreactors |
Type |
Journal Article |
| Year |
2006 |
Publication |
Water Sci. Technol. |
Abbreviated Journal |
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| Volume |
54 |
Issue |
2 |
Pages |
179-185 |
| Keywords |
mine water treatment |
| Abstract |
The uncontrolled release of acid mine drainage (AMD) from abandoned mines and tailing piles threatens water resources in many sites worldwide. AMD introduces elevated concentrations of sulfate ions and dissolved heavy metals as well as high acidity levels to groundwater and receiving surface water. Anaerobic biological processes relying on the activity of sulfate reducing bacteria are being considered for the treatment of AMD and other heavy metal containing effluents. Biogenic sulfides form insoluble complexes with heavy metals resulting in their precipitation. The objective of this study was to investigate the remediation of AMD in sulfate reducing bioreactors inoculated with anaerobic granular sludge and fed V with an influent containing ethanol. Biological treatment of an acidic (pH 4.0) synthetic AMD containing high concentrations of heavy metals (100 Mg Cu2+vertical bar(-1); 10 mg Ni2+vertical bar(-1), 10 mg Zn2+vertical bar(-1)) increased the effluent pH level to 7.0-7.2 and resulted in metal removal efficiencies exceeding 99.2%. The highest metal precipitation Cn rates attained for Cu, Ni and Zn averaged 92.5, 14.6 and 15.8 mg metal l(-1) of reactor d(-1). The results of this work demonstrate that an ethanol-fed sulfidogenic reactor was highly effective to remove heavy metal contamination and neutralized the acidity of the synthetic wastewater. |
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Biological treatment of heavy metals in acid mine drainage using sulfate reducing bioreactors; Wos:000240449300024; Times Cited: 0; ISI Web of Science |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16943 |
Serial |
106 |
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| Author |
Jong, T. |
| Title |
Microbial sulfate reduction under sequentially acidic conditions in an upflow anaerobic packed bed bioreactor |
Type |
Journal Article |
| Year |
2006 |
Publication |
Water Research |
Abbreviated Journal |
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| Volume |
40 |
Issue |
13 |
Pages |
2561-2571 |
| Keywords |
mine water treatment |
| Abstract |
The aim of this study was to operate an upflow anaerobic packed bed reactor (UAPB) containing sulfate reducing bacteria (SRB) under acidic conditions similar to those found in acid mine drainage (AMD). The UAPB was filled with sand and operated under continuous flow at progressively lower pH and was shown to be capable of supporting sulfate reduction at pH values of 6.0, 5.0, 4.5, 4.0 and 3.5 in a synthetic medium containing 53.5 mmol l(-1) lactate. Sulfate reduction rates of 553-1052 mmol m(-3) d(-1) were obtained when the influent solution pH was progressively lowered from pH 6.0 to 4.0, under an optimal flow rate of 2.61 ml min(-1). When the influent pH was further lowered to pH 3.5, sulfate reduction was substantially reduced with only about 1% sulfate removed at a rate of 3.35 mmol m(-3) d(-1) after 20 days of operation. However, viable SRB were recovered from the column, indicating that the SRB population was capable of surviving and metabolizing at low levels even at pH 3.5 conditions for at least 20 days. The changes in conductivity in the SRB column did not always occur with changes in pH and redox potential, suggesting that conductivity measurements may be more sensitive to SRB activity and could be used as an additional tool for monitoring SRB activity. The bioreactor containing SRB was able to reduce sulfate and generate alkalinity even when challenged with influent as low as pH 3.5, indicating that such treatment systems have potential for bioremediating highly acidic, sulfate contaminated waste waters. (c) 2006 Elsevier Ltd. All rights reserved. |
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Microbial sulfate reduction under sequentially acidic conditions in an upflow anaerobic packed bed bioreactor; Wos:000239469400012; Times Cited: 0; ISI Web of Science |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 16929 |
Serial |
108 |
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