Leaching Characteristic of Wood Pellet Combustion Residues from Different Combustion Equipments

T. Sano, S. Miura, H. Furusawa, S. Kaneko, T. Yoshida, T. Nomura & S. Ohara
To evaluate the suitability of ash application to agricultural fields and forest sites, the leaching characteristics of wood pellet ashes were studied for 11 types of ashes originating from the combustion of five types of Japanese wood pellets with two types of combustors (stoves and muffle furnaces). The ash leachate showed high K and Na concentrations and a high pH value, which indicates that the biomass ash acts as a source of base cations, raising...