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Title: Soil amendments promote vegetation establishment and control acidity in coal combustion waste

Author: Danker, R.M.; Adriano, D.C.; Koo, Bon-Jun; Barton, C.D.;

Date: 2003

Source: In: Proceedings of the symposium Chemistry of Trace Elements in Fly Ash, July 29-August 2, University of Guelphy, Canada, ed. Sajwan, p. 319-333

Publication Series: Miscellaneous Publication

Description: The effects of adding various soil amendments and a pyrite oxidation inhibitor to aid in the establishment of vegetation and to reduce acid drainage (AD) from coal fly ash and coal reject (FA + CR*) were assessed in an outdoor mesocosm study. Preliminary greenhouse experiments and field observations at the U.S. Department of Energy's Savannah River Site (SRS) indicated that plants would not survive in this material without altering its physical and chemical characteristics. Samples of mixed FA + CR were obtained from a field site at the SRS. The following treatments were used: Biosolid only (Treatment A), Biosolid + Surfactant (Treatment B), Topsoil + Surfactant (Treatment C), and Biosolid + Topsoil + Surfactant (Treatment D). Leaching was induced due to inadequate rainfall. Loblolly pine seedlings (Pinus taeda) inoculated with ectomycorrhizal fungi - Pisolithus tinctorius (Pt) and Scleroderma cepa (Sc) - were transplanted into each mesocosm tank. Soil solution samplers were installed in each unit at 15 and 41 cm depths. Samples were taken periodically and measured for pH, EC, and other parameters.

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Danker, R.M.; Adriano, D.C.; Koo, Bon-Jun; Barton, C.D. 2003. Soil amendments promote vegetation establishment and control acidity in coal combustion waste. In: Proceedings of the symposium Chemistry of Trace Elements in Fly Ash, July 29-August 2, University of Guelphy, Canada, ed. Sajwan, p. 319-333

 


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