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Fly Ash and Lime-Stabilized Biosolid Mixtures in Mine Spoil Reclamation

Simulated Weathering

Dep. of Plant and Soil Sciences, Institute of Agriculture, The Univ. of Tennessee, P.O. Box 1071, Knoxville, TN 37901-1071

View larger version (25K): [in a new window]   Fig. 1. The pH and electrical conductivity (EC) of leachates from the unamended and lime-stabilized biosolid (LSB)– and neutral fly ash (NFA)–amended mine spoil simulated weathering experiments

View larger version (42K): [in a new window]   Fig. 2. The concentrations of Ca, Mg, SO4, Cl, F, NO3, K, and B in leachates from each leaching cycle of the unamended and lime-stabilized biosolid (LSB)– and neutral fly ash (NFA)–amended acid mine spoil simulated weathering experiments

View larger version (38K): [in a new window]   Fig. 3. The concentrations of P, Al, Fe, Mn, Cu, Ni, and Zn in leachates from each leaching cycle of the unamended and lime-stabilized biosolid (LSB)– and neutral fly ash (NFA)–amended acid mine spoil simulated weathering experiments