Mine Water and the Environment

, Volume 21, Issue 4, pp 160–167 | Cite as

Underground Waste Repositories in Exhausted Coal Mines – Recent Developments

  • Edson Wendland
  • Thomas Himmelsbach
Technical Article

Abstract.

Due to the general lack of appropriate surface waste dumpsites in North-Rhine-Westphalia (Germany), placing filter ashes and desulphurisation residues from power plants in underground coal mines has become an attractive alternative. The residues can be injected as a hydraulic suspension into exploited coal seams. In this paper, we summarize the fundamental geotechnical aspects that define the hydrochemical barriers for underground repositories. The environmental advantages and disadvantages of this concept are discussed. Laboratory and field investigations as well as modelling are presented in order to establish the environmental reliability of such repositories.

Key words: underground repository; exhausted coal mines; risk analysis; hydrogeology 

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Copyright information

© IMWA Springer-Verlag 2002

Authors and Affiliations

  • Edson Wendland
    • 1
  • Thomas Himmelsbach
    • 2
  1. 1.Dept of Hydraulics and Sanitation/EESC/USP, Caixa Postal 359, São Carlos-SP, 13560-970, BrazilBR
  2. 2.Bundesanstalt für Geowissenschaften und Rohstoffe, Stilleweg 2, 30655 Hannover, Germany; e-mail: ew@sc.usp.brDE

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