| Records |
| 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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no |
| Call Number |
CBU @ c.wolke @ 17513 |
Serial |
59 |
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| Author |
Sastri, V.S. |
| Title |
Performance Of Some Reverse-Osmosis Membranes And Their Application In Separation Of Metals In Acid Mine-Water |
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Journal Article |
| Year |
1976 |
Publication |
Separation Science |
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11 |
Issue |
2 |
Pages |
133-146 |
| Keywords |
mine water treatment |
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Performance Of Some Reverse-Osmosis Membranes And Their Application In Separation Of Metals In Acid Mine-Water; Wos:A1976bt15300002; Times Cited: 10; ISI Web of Science |
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CBU @ c.wolke @ 9247 |
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98 |
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Wiseman, I.M.; Edwards, P.J.; Rutt, G.P. |
| Title |
Recovery of an aquatic ecosystem following treatment of abandoned mine drainage with constructed wetlands |
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Journal Article |
| Year |
2003 |
Publication |
Land Contam. Reclam. |
Abbreviated Journal |
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| Volume |
11 |
Issue |
2 |
Pages |
221-230 |
| Keywords |
Pollution and waste management non radioactive Groundwater problems and environmental effects Wetlands and estuaries geological abstracts: environmental geology (72 14 2) geomechanics abstracts: excavations (77 10 10) geographical abstracts: physical geography hydrology (71 6 8) coal mine recovery aquatic ecosystem constructed wetland water treatment mine drainage abandoned mine |
| Abstract |
Seven kilometres of the River Pelenna in South Wales were impacted for approximately 30 years by discharges from abandoned coal mines. Elevated iron and low pH caused significant ochreous staining and had detrimental effects on the river ecology. The River Pelenna Mine water project constructed a series of passive wetland treatment systems to treat these discharges. Monitoring of the performance and environmental benefits of these has been undertaken as part of an Environment Agency R&D project. This project has assessed the changes in water quality as well as monitoring populations of invertebrates, fish and birds between 1993 and 2001. Performance data from the wetlands show that on average the three systems are removing between 82 and 95% of the iron loading from the mine waters. In the rivers downstream, the dissolved iron concentration has dropped to below the Environmental Quality Standard (EQS) of 1 mg/L for the majority of the time. Increases in pH downstream of the discharges have also been demonstrated. Trout (Salmo trutta) recovered quickly following mine water treatment, returning the next year to areas that previously had no fish. Intermittent problems with overflows from the treatment systems temporarily depleted the numbers, but the latest data indicate a thriving population. The overflow problems and also background episodes of acidity have affected the recovery of the riverine invertebrates. However, there have been gradual improvements in the catchment, and in the summer of 2001 most sites held faunas which approached those found in unpolluted controls. Recovery of the invertebrate fauna is reflected in marked increases in the breeding success of riverine birds between 1996 and 2001. This study has shown that constructed wetlands can be an effective, low cost and sustainable solution to ecological damage caused by abandoned mine drainage. |
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I.M. Wiseman, Environment Agency Wales, 19 Penyfai Lane, Furnace, Llanelli SA15 4EL, United Kingdom |
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0967-0513 |
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Recovery of an aquatic ecosystem following treatment of abandoned mine drainage with constructed wetlands; 2530429; United-Kingdom 25; Geobase |
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| Call Number |
CBU @ c.wolke @ 17516 |
Serial |
206 |
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| Author |
Taylor, J.; Waters, J. |
| Title |
Treating ARD; how, when, where and why |
Type |
Journal Article |
| Year |
2003 |
Publication |
Mining Environmental Management |
Abbreviated Journal |
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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 |
Rukin, N. |
| Title |
Whittle mine water treatment system: In-river attenuation of manganese |
Type |
Journal Article |
| Year |
2003 |
Publication |
Land Contam. Reclam. |
Abbreviated Journal |
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| Volume |
11 |
Issue |
2 |
Pages |
137-144 |
| Keywords |
Pollution and waste management non radioactive Groundwater problems and environmental effects geological abstracts: environmental geology (72 14 2) geomechanics abstracts: excavations (77 10 10) river water natural attenuation manganese water treatment mine drainage coal mine |
| Abstract |
Much work has been undertaken on the design of treatment systems to remove iron from ochreous mine water discharges. Unlike iron, manganese removal is far more difficult and generally requires active chemical dosing rather than passive treatment. The need for manganese removal can therefore significantly change the economics, management attention and sustainability of a site. Understanding natural attenuation of manganese in river systems is therefore key to deciding whether (active) manganese treatment is needed to protect downstream receptors. Nuttall (2002, this volume) describes the effectiveness of the passive treatment system at Whittle in reducing both iron and manganese concentrations in ochreous mine waters. This paper discusses the results of in-river monitoring and provides evidence for manganese removal downstream of the discharge point. In addition to dilution, attenuation appears to be in the order of 20 to 50%, depending on relative rates of mine water discharge and river flows. Such attenuation means that active treatment may not be needed for the long-term operation of the Whittle scheme. Operation of the scheme commenced in July 2002, with monitoring to further examine evidence for manganese attenuation and any impact on the ecology of the recipient watercourses. |
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N. Rukin, Entec UK Ltd., 160-162 Abbey Foregate, Shrewsbury SY2 6BZ, United Kingdom |
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0967-0513 |
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Whittle mine water treatment system: In-river attenuation of manganese; 2530418; United-Kingdom 2; Geobase |
Approved |
no |
| Call Number |
CBU @ c.wolke @ 17521 |
Serial |
257 |
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