Zeolite synthesis by alkaline hydrothermal reaction is an effective way to utilize the large
amount of coal fly ash discharged from coal-fired power plants. For the purpose of shortening the
synthesis time and saving energy, coal fly ash zeolite was synthesized using microwaves and the
adsorption performance of the zeolite was evaluated. As a result of the adsorption performance
test, it was found to have the potential for use as a cesium and strontium adsorbent for the
treatment of contaminated water containing radioactive substances.