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Author |
Laine, D.M.; Jarvis, A.P. |
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Title |
Engineering design aspects of passive in situ remediation of mining effluents |
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Journal Article |
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Year |
2003 |
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Land Contam. Reclam. |
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11 |
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2 |
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113-126 |
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Keywords |
Groundwater problems and environmental effects Pollution and waste management non radioactive waste management pyrite iron sulfide remediation mine drainage effluent |
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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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CBU @ c.wolke @ 17523 |
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60 |
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Author |
Laine, D.M.; Jarvis, A.P. |
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Title |
Design aspects of passive in situ remediation schemes for minign & industrial effluents |
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Journal Article |
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Year |
2003 |
Publication |
Tübinger Geowissenschaftliche Arbeiten |
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C68 |
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95-113 |
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Keywords |
mine water passive treatment |
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0935-4948 |
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Design aspects of passive in situ remediation schemes for minign & industrial effluents; 1; FG 1 Abb., 2 Tab.; AMD ISI | Wolkersdorfer |
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CBU @ c.wolke @ 9759 |
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319 |
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Author |
Jarvis, A.P.; Younger, P.L. |
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Title |
Passive treatment of ferruginous mine waters using high surface area media |
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Journal Article |
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Year |
2001 |
Publication |
Water Res. |
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Volume |
35 |
Issue |
15 |
Pages |
3643-3648 |
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Keywords |
mine water treatment passive treatment mine water accretion oxidation iron manganese water treatment |
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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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Notes |
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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Call Number |
CBU @ c.wolke @ 9698 |
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27 |
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