| The comparative leaching experiments of coal(C),ashing ash(AA),fly ash(FA) and bottom ash(BA) have been carried out under different PH conditions.The leaching behaviour of As,Zn,Pb,Ni and Sr have been investigated in detail.The results have shown that the pH values of solution,leaching time,and particularly,the properties and species of the elements existed have heavily influenced on the leaching behaviour of elements.Among the 5 elements analysed,the leaching ability of Sr is strong,Pb and As strong to middle,Ni middle and Zn weak. |
