Records |
Author |
Banks, S.B. |
Title |
The UK coal authority minewater-treatment scheme programme: Performance of operational systems |
Type |
Journal Article |
Year |
2003 |
Publication |
Jciwem |
Abbreviated Journal |
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Volume |
17 |
Issue |
2 |
Pages |
117-122 |
Keywords |
mine water treatment |
Abstract |
This paper summarises the performance of minewater-treatment schemes which are operated under the Coal Authority's National Minewater Treatment Programme. Commonly-used design criteria and performance indicators are briefly discussed, and the performance of wetland systems which are operated by the Coal Authority is reviewed. Most schemes for which data are available remove more than 90% iron, and average area-adjusted iron-removal rates range from 1.5 to 5.5 g Fe/m(2). d. These values, which are based on performance calculations, can be distorted by several factors, including the practice of maximising wetland areas to make best use of available land. Removal rates are limited by influent iron loadings, and area-adjusted iron-removal rates should be used with caution when assessing wetland performance. Sizing criteria for all types of treatment system might be refined if more detailed data become available. |
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0951-7359 |
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May; The UK coal authority minewater-treatment scheme programme: Performance of operational systems; Wos:000183641000009; Times Cited: 1; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/10018.pdf; ISI Web of Science |
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Call Number |
CBU @ c.wolke @ 17457 |
Serial |
9 |
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Author |
Coulton, R.; Bullen, C.; Hallett, C. |
Title |
The design and optimisation of active mine water treatment plants |
Type |
Journal Article |
Year |
2003 |
Publication |
Land Contam. Reclam. |
Abbreviated Journal |
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Volume |
11 |
Issue |
2 |
Pages |
273-280 |
Keywords |
sludge mine water treatment mine water active treatment precipitation iron manganese high density sludge sulphide Groundwater problems and environmental effects Pollution and waste management non radioactive manganese sulfide pollutant removal iron water treatment mine drainage |
Abstract |
This paper provides a 'state of the art' overview of active mine water treatment. The paper discusses the process and reagent selection options commonly available to the designer of an active mine water treatment plant. Comparisons are made between each of these options, based on technical and financial criteria. The various different treatment technologies available are reviewed and comparisons made between conventional precipitation (using hydroxides, sulphides and carbonates), high density sludge processes and super-saturation precipitation. The selection of reagents (quick lime, slaked lime, sodium hydroxide, sodium carbonate, magnesium hydroxide, and proprietary chemicals) is considered and a comparison made on the basis of reagent cost, ease of use, final effluent quality and sludge settling criteria. The choice of oxidising agent (air, pure oxygen, peroxide, etc.) for conversion of ferrous to ferric iron is also considered. Whole life costs comparisons (capital, operational and decommissioning) are made between conventional hydroxide precipitation and the high density sludge process, based on the actual treatment requirements for four different mine waters. |
Address |
R. Coulton, Unipure Europe Ltd., Wonastow Road, Monmouth NP25 5JA, United Kingdom |
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0967-0513 |
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The design and optimisation of active mine water treatment plants; 2530436; United-Kingdom 4; Geobase |
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Call Number |
CBU @ c.wolke @ 17513 |
Serial |
59 |
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Author |
Laine, D.M.; Jarvis, A.P. |
Title |
Engineering design aspects of passive in situ remediation of mining effluents |
Type |
Journal Article |
Year |
2003 |
Publication |
Land Contam. Reclam. |
Abbreviated Journal |
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Volume |
11 |
Issue |
2 |
Pages |
113-126 |
Keywords |
Groundwater problems and environmental effects Pollution and waste management non radioactive waste management pyrite iron sulfide remediation mine drainage effluent |
Abstract |
Passive treatment of contaminated effluents can offer a 'low cost' management opportunity to remediate drainages to the standards required by enforcement agencies. However, the initial cost of construction of passive treatment systems is significant and often in excess of that for active treatment systems. It is therefore important that the engineering design of the passive systems produces an effective and efficient scheme to enable the construction and maintenance costs to be minimised as far as possible. Possible parameters for the design of passive systems are suggested to seek to obtain uniformity in size and layout of treatment elements where this may be possible. Passive treatment systems include aeration systems, sedimentation ponds, aerobic and anaerobic wetlands, anoxic limestone drains and reducing alkalinity producing systems. Most active treatment systems also include passive elements in the treatment stream. The basic design considerations that should be considered to ensure the construction of efficient systems are discussed. |
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D.M. Laine, IMC Consulting Engineers, PO Box 18, Sutton-in-Ashfield NG17 2NS, United Kingdom |
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0967-0513 |
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Engineering design aspects of passive in situ remediation of mining effluents; 2530416; United-Kingdom 22; Geobase |
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no |
Call Number |
CBU @ c.wolke @ 17523 |
Serial |
60 |
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Author |
Bilek, F.; Werner, F.; Schöpke, R. |
Title |
Experimentelle und modellgestützte Entwicklung von Verfahren zur geochemischen Grundwasser- und Untergrundbehandlung zur Gefahrenabwehr im Nordraum des Senftenberger Sees |
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Journal Article |
Year |
2003 |
Publication |
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Issue |
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Pages |
544 |
Keywords |
Senftenberger See Bergbaurestsee Sulfidbelastung Grundwasserüberwachung |
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; Experimentelle und modellgestützte Entwicklung von Verfahren zur geochemischen Grundwasser- und Untergrundbehandlung zur Gefahrenabwehr im Nordraum des Senftenberger Sees; Lausitzer und Mitteldeutsche Bergbau-Verwaltungsgesellschaft <Berlin>; Technische Universität <Cottbus>; Grundwasserforschungsinstitut <Dresden>; Erschienen: Cottbus [u.a.]; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/6945.pdf; Opac |
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CBU @ c.wolke @ 6945 |
Serial |
78 |
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Author |
Catalan, L.J.J.; Yin, G. |
Title |
Comparison of calcite to quicklime for amending partially oxidized sulfidic mine tailings before flooding |
Type |
Journal Article |
Year |
2003 |
Publication |
Environ Sci Technol |
Abbreviated Journal |
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Volume |
37 |
Issue |
7 |
Pages |
1408-1413 |
Keywords |
mine water treatment |
Abstract |
Flooding partially oxidized mine tailings for the purpose of mitigating further oxidation of sulfide minerals and generation of acid drainage is generally preceded by treatment with alkaline amendments to prevent releasing previously accumulated acidity to the water cover. This work compares the ability of calcite (CaCO3) and quicklime (CaO), two common amendments, to establish and maintain pH conditions and dissolved metal concentrations within environmentally acceptable ranges over long time periods. Although higher initial pH values were obtained with quicklime, the pH of quicklime treated tailings decreased over time. This was attributed to the low buffering capacity of quicklime treated tailings and to the consumption of hydroxide ions by incongruent dissolution of water-insoluble iron oxyhydroxysulfate minerals. In contrast, the pH of tailings treated with calcite increased initially and then remained stable at pH approximate to 6.7. This pH behavior was due to the lower reactivity of iron oxyhydroxysulfates with calcite, the increased buffering capacity provided by bicarbonate ions, and the incomplete dissolution of calcite. Overall, calcite was found preferable to quicklime for maintaining long-term neutral pH conditions in the treated tailings. With the exception of zinc, acceptable dissolved metal concentrations were achieved with calcite treated tailings. |
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0013-936x |
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Apr. 01; Comparison of calcite to quicklime for amending partially oxidized sulfidic mine tailings before flooding; Wos:000181977000050; Times Cited: 2; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/7917.pdf; ISI Web of Science |
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Call Number |
CBU @ c.wolke @ 7917 |
Serial |
118 |
Permanent link to this record |