抄録
To characterize leaching behavior of boron in various kind of fly ashes, leaching rate and partitioning rate of boron were investigated for 4 fly ashes that collected by electric static precipitator in a coal fired power plant. Leaching rate of boron is different by fly ash types, which show from 0% to 85%. Relation between partitioning rate of boron to fly ash and its leaching rate is examined to obtain control factor of the leaching rate for various fly ashes.