By W. Geller, H. Klapper, M. Schultze (auth.), Prof. Dr. Walter Geller, Prof. Dr. Helmut Klapper, Prof. Dr. Wim Salomons (eds.)
Acidification is a common challenge in any respect mining websites during which oxygenated water is available in touch with sulfide minerals or different lowered sulfur compounds. a world Workshop used to be held in September 1995 on the division for Inland Water study of the UFZ-Centre for Environmental study in Magdeburg at the limnology of lakes created via open-cast lignite mining, emphasizing the customarily saw geogenic acidification after oxidation of pyrite. issues of curiosity have been case reports at the limnology of acid lakes, e.g. bacteriologically greater approaches on the topic of heavy steel mobilization and acid new release, the ecology of sulfur-acidic lakes, and at the inorganic tactics of acidification. moreover, suggestions for the prevention and the abatement of acidification have been addressed together with the explanations of acidification, and the choices for decreasing the output of acidified groundwater from overburden dumps, for acid keep watch over in the course of the flooding of open-cast mines, and strength measures for caused in situ organic neutralization. This quantity has 25 chapters together with a bankruptcy with result of team discussions in regards to the themes pointed out above and additional difficulties that have been pointed out in the course of the assembly. The monograph supplies a baseline of the country of technology at the all over the world challenge of geogenic adidification of lakes following human mining actions, and the way to deal with this environmental problem.
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Additional resources for Acidic Mining Lakes: Acid Mine Drainage, Limnology and Reclamation
In Lake Edelmann and Lake Murner a significant fraction of the TRIS is AVS (79 and 61 % respectively; the percentages refer to the depth-integrated contents). In Lake Murner there is also elemental sulphur (32 % of TRIS). In Lake Au most of the TRIS should be FeS 2 • In Lake Edelmann and Lake Murner the organic carbon content was high in the first centimetres below the sediment - water interface. In Lake Murner increased concentrations were found only in the first 3 cm, with 23 % (w/w) in the upper centimetre.
Geol Soc Am Spec Pap 248:87-99 Nixdorf B, Rucker J, Kocher B, Deneke R (1995) Erste Ergebnisse zur Limnologie von Tagebaurestseen in Brandenburg unter besonderer Berucksichtigung der Besiedlung im Pelagial. In: Geller W, Packroff G (Hrsg) Abgrabungsseen - Risiken und Chancen. Limnologie aktuell7. Gustav-Fischer, Stuttgart, S 39 - 52 Nordstrom DK (1982) Aqueous pyrite oxidation and the consequent formation of secondary iron minerals. In: Kittrick JA (ed) Acid sulphate weathering. Arch Naturschutz Landschaftsforsch BerlI9:97-115 SalomonsW, Forstner U (1984) Metals in the hydrocyde.
1990; Blowes et al. 1991, Hedin et al. 1994; Wisotzky 1994). The residual hollow forms of the abandoned surface mines were fIlled by the rising water table and/or with river water forming the mining lakes. In regions with bedrocks rich in pyrite/marcasite and poor in carbonate, many mining lakes are strongly acidified (Schultze and Geller 1996). In the Lusatian district, more than 100 lakes of various sizes are acidified to pH values below 4 (Pietsch 1979). Detailed information on the chemical variability of these lakes and their sediments is rare.