魚鱗から分離した水酸アパタイトによるPb²⁺ およびCd²⁺イオン除去

抄録

Hydroxyapatite separated from fish scales by treating them with hot potassium hydroxide solution (n-HAp) were applied to the removal of Pb²⁺ and Cd²⁺ ions in aqueous solutions at several temperatures. The removal ratios of the ions in aqueous solutions were as well as those of synthetic hydroxyapatite. Hydroxyapatite powder separated from fish scales can be supplied at low price and of practical use for removal of such toxic heavy metal ions as Pb²⁺ and Cd²⁺ in industrial waste.