湿式素材プロセッシング

[2P0131-36-01] キャリアー・イン・パルプ法による亜鉛浸出残渣からの鉛除去と浄化

○Silwamba Marthias¹、福嶋 智輝¹、高桑 駿¹、Tabelin Carlito Baltazar¹、伊藤 真由美¹、広吉 直樹¹ (1. 北海道大学)

キーワード：鉛、亜鉛浸出残渣、浸出、セメンテーション

Zinc leach plant residues (ZLPRs) generated during zinc extraction are regarded as hazardous materials due to presence of heavy metals such as lead (Pb) hence affect ecosystem and people living nearby them. In this study we investigated removal of Pb from ZLPRs from Kabwe, a town in Zambia known to be among the most Pb - polluted towns in Africa. Pb was extracted in sodium chloride solution and extracted Pb was recovered on zero valent iron (ZVI) powder. The effects of ZVI dosage, solution composition and treatment time are reported.