The Use of Cyclonic Ashes of Fluidized Bed Burning of Coal Mine Refuse for Long-Term Immobilization of Metals in Soils

  • J. Vangronsveld
  • A. Ruttens
  • H. Clijsters

Abstract

In 1990, 3 ha of a highly metal polluted acid sandy soil at the site of a former pyrometallurgical zinc smelter (at Maatheide, situated in Lommel, Belgium) was treated with a combination of cyclonic ashes and compost. 8 The reduction of soil phytotoxicity by the treatment in 1990 was immediate. 8 After soil treatment and sowing of a mixture of metal tolerantAgrostis capillarisandFestuca rubra, a healthy vegetation cover developed. Five years later, an evaluation of the durability of the soil treatment and revegetation was made. 9 The vegetation was still healthy and regenerating by vegetative means and by seed. Results from this field experience and from the simulation experiment are described below. The short-and long-term working mechanisms of the cyclonic ashes treatment in metal contaminated soils is hypothesized.

Keywords

Zinc Burning Clay Nickel Cadmium 

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Copyright information

© Springer Science+Business Media New York 1999

Authors and Affiliations

  • J. Vangronsveld
    • 1
  • A. Ruttens
    • 1
  • H. Clijsters
    • 1
  1. 1.Environmental BiologyLimburgs Universitair CentrumDiepenbeekBelgium

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