Development of zinc and cadmium containing mine drainage using hyperaccumlating plant

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K14273
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Earth system and resources engineering
• Research Institution: Tohoku University
• Principal Investigator: Inoue Chihiro 東北大学, 環境科学研究科, 教授 (30271878)
• Research Collaborator: SUGAWARA KAZUKI 東北大学, 大学院環境科学研究科 ; SOU YOU 東北大学, 大学院環境科学研究科 ; KITAJIMA NOBUYUKI 株式会社フジタ, 主任研究員
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: ハクサンハタザオ / カドミウム / 亜鉛 / 坑廃水処理 / 連続処理 / 高集積植物 / 排水基準 / 金属回収

Outline of Final Research Achievements

Absorption behavior of zinc and cadmium was elucidated using hydroponic cultivation system of Arabidopsis halleri ssp. gemmifera (Jananese name: HAKUSANHATAZAO) which is a hyperaccumulating plant of zinc and cadmium in this research. Experimental results showed that cadmium is absorbed without an influence of zinc concentration. From the results
Water quality of artificial and actual mine drainage were proved to be improved by this hydroponic system. Basic design of a cadmium containing mine drainge treatment plant showed that this system is applicable in to apply actual mine drainge containing cadmium.

Free Research Field

環境科学