A P-1 type Shirasu-zeolite (SZP(1)) was treated with an aluminium sulf
ate solution, and thus an aluminium-loaded SZP(1) (Al-SZP(1)) was prep
ared. By use of Al-SZP(1) as an adsorbent, the adsorption of As(V) was
examined. The Al-SZP(1) was superior to an activated alumina and othe
r aluminium-loaded zeolites in terms of the adsorption ability for As(
V).