Anion adsorbent, water quality or soil purification agent and method for producing them

摘要

PROBLEM TO BE SOLVED: To provide a novel anion adsorbent having an extremely high anion adsorbing ability mainly composed of iron which is a metal excellent in biological safety. An anionic adsorbent comprising, as an active ingredient, amorphous ferric hydroxide produced under conditions in which ferrous species are present. [Selection figure] None