環境

[2P0115-20-02] アルミニウム及び活性炭を用いたセメンテーションによる硫酸塩と塩化物溶液からCdとPbイオンの除去 (発表者：博士課程)

○崔 象現¹、Jeon Sanghee¹、Park Ilhwan¹、伊藤 真由美¹、広吉 直樹¹ (1. 北海道大学)

キーワード：セメンテーション、アルミニウム、活性炭、鉛、カドミウム

Removal of toxic cadmium (Cd) and lead (Pb) ions from chloride solutions and Cd from sulfate solutions by cementation using aluminium (Al) and effects of activated carbon (AC) addition on the removal efficiency were investigated at different pH. In chloride solutions, cementation efficiencies of Cd and Pb were over 99% even without AC at pH 1 - 5. In sulfate solutions, efficiency of Cd cementation with Al was over 99% at final pH below 4.5; however, there was no cementation at final pH over 4.5. When AC was added together with Al, Cd cementation efficiency at final pH above 4.5 was enhanced from 0% to around 60%. SEM-EDX analysis results showed that Cd was detected on activated carbon particles attached on Al surface.