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
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