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 within which oxygenated water is available in touch with sulfide minerals or different lowered sulfur compounds. a world Workshop was once held in September 1995 on the division for Inland Water study of the UFZ-Centre for Environmental learn in Magdeburg at the limnology of lakes created via open-cast lignite mining, emphasizing the usually saw geogenic acidification after oxidation of pyrite. subject matters of curiosity have been case reports at the limnology of acid lakes, e.g. bacteriologically greater techniques regarding heavy steel mobilization and acid new release, the ecology of sulfur-acidic lakes, and at the inorganic tactics of acidification. additionally, ideas for the prevention and the abatement of acidification have been addressed together with the factors of acidification, and the choices for lowering the output of acidified groundwater from overburden dumps, for acid keep an eye on through the flooding of open-cast mines, and capability measures for brought on in situ organic neutralization. This quantity has 25 chapters together with a bankruptcy with result of team discussions concerning the issues pointed out above and additional difficulties that have been pointed out in the course of the assembly. The monograph offers a baseline of the country of technology at the around the globe challenge of geogenic adidification of lakes following human mining actions, and the way to deal with this environmental problem.
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Additional info for Acidic Mining Lakes: Acid Mine Drainage, Limnology and Reclamation
Physicochemcial characteristics (temperature pH, O2 and electric conductivity) of the mining lakes investigated and time of flooding by riverine water or rising water table ~ P"+ t1) t1) en ~ "r1 ... ;. 2a. Local map of ML-Senftenberger See and ML-Siidsee. Arrows show the dominating pathway of the riverine water across ML-Senftenberger See sampling points (S). l, 3 and 4 sampling points; I inflow of acid mine drainage; II inflow of wastewater of an aluminium smelter; III inflow of urban wastewater.
40 'E ,g 30 lit c I 50 • G> -• 0 • 20 10 •• • • • • • • 0 2 3 4 5 6 7 8 9 pH Fig. 5. Relation of ionic strength and pH (mean value). 5) were not considered for calculating ionic strength (for explanation see text) 3 Chemical Characteristics of Water and Sediment in Acid Mining Lakes 33 precise distribution of dissolved metal species such as Fe3+ or Fe( OH)i and others is still unknown, the concentrations of iron and aluminium were not considered for calculating the ionic strength. 7 mS/cm. Negative correlations with pH were observed for iron, manganese, aluminium and zinc (Fig.
Regarding the low number of lakes under investigation, statistical analysis of the sediment chemistry has to be considered with care. Several contradictory correlations or different slopes of trend lines can be found within the three groups identified. For further discussion we will consider only trends which are relevant for all three groups, neglecting different slopes of correlation lines. Interelement relationships can be found for Zn and Ni, Zn and Cu, Zn and Hg, and for AI and Cu, resulting in correlations between Ni and Cu, Ni and Hg, Cu and Hg, AI and Zn, Al and Hg, respectively.