Records |
Author |
Jarvis, A.P.; Younger, P.L. |
Title |
Passive treatment of ferruginous mine waters using high surface area media |
Type |
Journal Article |
Year ![sorted by Year field, descending order (down)](img/sort_desc.gif) |
2001 |
Publication |
Water Res. |
Abbreviated Journal |
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Volume |
35 |
Issue |
15 |
Pages |
3643-3648 |
Keywords |
mine water treatment passive treatment mine water accretion oxidation iron manganese water treatment |
Abstract |
Rapid oxidation and accretion of iron onto high surface area media has been investigated as a potential passive treatment option for ferruginous, net-alkaline minewaters. Two pilot-scale reactors were installed at a site in County Durham, UK. Each 2.0m high cylinder contained different high surface area plastic trickling filter media. Ferruginous minewater was fed downwards over the media at various flow-rates with the objective of establishing the efficiency of iron removal at different loading rates. Residence time of water within the reactors was between 70 and 360s depending on the flow-rate (1 and 12l/min, respectively). Average influent total iron concentration for the duration of these experiments was 1.43mg/l (range 1.08-1.84mg/l; n=16), whilst effluent iron concentrations averaged 0.41mg/l (range 0.20-1.04mg/l; n=15) for Reactor A and 0.38mg/l (range 0.11-0.93mg/l; n=16) for Reactor B. There is a strong correlation between influent iron load and iron removal rate. Even at the highest loading rates (approximately 31.6g/day) 43% and 49% of the total iron load was removed in Reactors A and B, respectively. At low manganese loading rates (approximately 0.50-0.90g/day) over 50% of the manganese was removed in Reactor B. Iron removal rate (g/m3/d) increases linearly with loading rate (g/day) up to 14g/d and the slope of the line indicates that a mean of 85% of the iron is removed. In conclusion, it appears that the oxidation and accretion of ochre on high surface area media may be a promising alternative passive technology to constructed wetlands at certain sites. |
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0043-1354 |
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Oct; Passive treatment of ferruginous mine waters using high surface area media; 9; file:///C:/Dokumente%20und%20Einstellungen/Stefan/Eigene%20Dateien/Artikel/9698.pdf; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 9698 |
Serial |
27 |
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Author |
Younger, P.L.; Banwart, S.A. |
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Book Whole |
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2001 |
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Pages |
419-421 |
Keywords |
mine water |
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Preprints volume Conference 'Groundwater Quality 2001' (Third International Conference on Groundwater Quality, International Association of Hydrological Sciences) |
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Sheffield |
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Time-scale issues in the remediation of pervasively contaminated groundwaters at abandoned mines sites |
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Time-scale issues in the remediation of pervasively contaminated groundwaters at abandoned mines sites; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 17629 |
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197 |
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Author |
Younger, P.L. |
Title |
Holistic remedial strategies for short- and long-term water pollution from abandoned mines |
Type |
Journal Article |
Year ![sorted by Year field, descending order (down)](img/sort_desc.gif) |
2000 |
Publication |
Transactions of the Institution of Mining and Metallurgy Section a-Mining Technology |
Abbreviated Journal |
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Volume |
109 |
Issue |
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Pages |
A210-A218 |
Keywords |
abandoned mines acid mine drainage Europe mines mining planning pollution remediation United Kingdom water pollution Western Europe |
Abstract |
Where mining proceeds below the water-table-as it has extensively in Britain and elsewhere-water ingress is not only a hindrance during mineral extraction but also a potential liability after abandonment. This is because the cessation of dewatering that commonly follows mine closure leads to a rise in the water-table and associated, often rapid, changes in the chemical regime of the subsurface. Studies over the past two decades have provided insights into the nature and time-scales of these changes and provide a basis for rational planning of mine-water management during and after mine abandonment. The same insights into mine-water chemistry provide hints for the efficient remediation of pollution (typically due to Fe, Mn and Al and, in some cases, Zn, Cd, Pb and other metals). Intensive treatment (by chemical dosing with enhanced sedimentation or alternative processes, such as sulphidization or reverse osmosis) is often necessary only during the first few years following complete flooding of mine voids. Passive treatment (by the use of gravity-flow geochemical reactors and wetlands) may be both more cost-effective and ecologically more responsible in the long term. By the end of 1999 a total of 28 passive systems had been installed at United Kingdom mine sites, including examples of system types currently unique to the United Kingdom. Early performance data for all the systems are summarized and shown to demonstrate the efficacy of passive treatment when appropriately applied. |
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0371-7844 |
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Holistic remedial strategies for short- and long-term water pollution from abandoned mines; Wos:000167240600013; Times Cited: 2; ISI Web of Science |
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Call Number |
CBU @ c.wolke @ 17458 |
Serial |
126 |
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Author |
Younger, P.L. |
Title |
The adoption and adaptation of passive treatment technologies for mine waters in the United Kingdom |
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Journal Article |
Year ![sorted by Year field, descending order (down)](img/sort_desc.gif) |
2000 |
Publication |
Mine Water Env. |
Abbreviated Journal |
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Volume |
19 |
Issue |
2 |
Pages |
84-97 |
Keywords |
wetlands SAPS aerobic wetlands acidity aerobic anaerobic compost iron metals passive reactive barrier water treatment |
Abstract |
During the 1990s, passive treatment technology was introduced to the United Kingdom (UK). Early hesitancy on the part of regulators and practitioners was rapidly overcome, at least for net-alkaline mine waters, so that passive treatment is now the technology of choice for the long-term remediation of such discharges, wherever land availability is not unduly limiting. Six types of passive systems are now being used in the UK for mine water treatment: ¨ aerobic, surface flow wetlands (reed-beds); ¨ anaerobic, compost wetlands with significant surface flow; ¨ mixed compost / limestone systems, with predominantly subsurface flow (so-called Reducing and Alkalinity Producing Systems (RAPS)); ¨ subsurface reactive barriers to treat acidic, metalliferous ground waters; ¨ closed-system limestone dissolution systems for zinc removal from alkaline waters; ¨ roughing filters for treating ferruginous mine waters where land availability is limited. Each of these technologies is appropriate for a different kind of mine water, or for specific hydraulic circumstances. The degree to which each type of system can be considered “proven technology” corresponds to the order in which they are listed above. Many of these passive systems have become foci for detailed scientific research, as part of a $1.5M European Commission project running from 2000 to 2003. |
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1025-9112 |
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The adoption and adaptation of passive treatment technologies for mine waters in the United Kingdom; 1; FG 5 Abb., 1 Tab.; AMD ISI | Wolkersdorfer |
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no |
Call Number |
CBU @ c.wolke @ 17448 |
Serial |
198 |
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Author |
Jarvis, A.P.; Younger, P.L. |
Title |
Design, construction and performance of a full-scare compost wetland for mine-spoil drainage treatment at quaking houses |
Type |
Journal Article |
Year ![sorted by Year field, descending order (down)](img/sort_desc.gif) |
1999 |
Publication |
Jciwem |
Abbreviated Journal |
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Volume |
13 |
Issue |
5 |
Pages |
313-318 |
Keywords |
Wetlands and estuaries geographical abstracts: physical geography hydrology (71 6 8) composting constructed wetland design performance assessment United Kingdom EnglandCounty Durham |
Abstract |
Acidic spoil-heap drainage, containing elevated concentrations of iron, aluminium and manganese, has been polluting the Stanley Burn in County Durham for nearly two decades. Following the success of a pilot-scale wetland (the first application of its kind in Europe), a full-scale wetland was installed. Waste manures and composts have been used as the main substrate which is contained within embankments constructed from compacted pulverized fuel ash. The constructed wetland, which cost less than £20,000 to build, has consistently reduced iron and aluminium concentrations and has markedly lowered the acidity of the drainage. A third phase of activities at the site aims to identify and eliminate pollutant-release 'hot spots' within the spoil. |
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0951-7359 |
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Design, construction and performance of a full-scare compost wetland for mine-spoil drainage treatment at quaking houses; 2227678; United-Kingdom 9; Geobase |
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CBU @ c.wolke @ 17546 |
Serial |
339 |
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