| 摘要 |
Provided is a selenium-elution suppression method capable of more stably suppressing the elution of selenium from coal combustion residue. A selenium-elution suppression method for suppressing the elution of selenium from coal combustion residue by mixing and combusting multiple types of coal including a first coal having a selenium concentration in mass ratio of 1.0 ppm or higher and one or more other types of coal different from the first coal, wherein the mixing is performed in a manner such that after mixing, the mass ratio P0 in the coal overall of the total amount of alkaline earth metals measured by oxide amount to the total amount of selenium is 2,000 or higher. |
