| 摘要 |
PROBLEM TO BE SOLVED: To provide an adsorbent capable of adsorbing/removing a bromic acid ion contained in water at a high removal ratio, in particular, a novel adsorbent capable of reducing a concentration of bromic acid ion in drinking water to a reference value or less, and to provide a means effective for reducing the concentration of bromic acid ion in water. SOLUTION: The adsorbent for the bromic acid ion is provided, which contains a compound represented by a composition formula: M(II)<SB>1-x</SB>M(III)<SB>x</SB>(OH)<SB>2</SB>*A<SB>x</SB>*nH<SB>2</SB>O (wherein M(II) represents Ca or Mg, M(III) represents Al or Fe, A<SP>-</SP>represents an anion, and x is 0-1) or its heating treatment substance as an active ingredient. A bromic acid ion removal method is provided, in which the adsorbent for the bromic acid ion is contacted with bromic acid ion-containing water. A bromic acid ion production suppression method is provided, in which the adsorbent is contacted with bromate ion-containing water to reduce the concentration of bromate ion. COPYRIGHT: (C)2009,JPO&INPIT
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