Research on efficient removal of contaminant in farmland soil by electrokinetic technique

2014 Fiscal Year Final Research Report

• Project/Area Number: 24380134
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Irrigation, drainage and rural engineering/Rural planning
• Research Institution: National Agriculture and Food Research Organization
• Principal Investigator: KUBOTA TOMIJIRO 独立行政法人農業・食品産業技術総合研究機構, 農村工学研究所・水利工学研究領域, 上席研究員 (30414460)
• Co-Investigator(Kenkyū-buntansha): NAKAGAWA Kei 国立大学法人長崎大学, 水産・環境科学総合研究科, 教授 (90315135) ; FUKUMURA Kazunari 国立大学法人宇都宮大学, 農学部, 准教授 (50312864) ; SHIMA Takeo 独立行政法人農業・食品産業技術総合研究機構, 九州沖縄農業研究センター・生産環境研究領域, 主任研究員 (20414427)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 動電学的土壌浄化法 / 農地土壌汚染 / 原位置浄化 / 重金属汚染 / カドミウム / セシウム

Outline of Final Research Achievements

In this study, the soil remediation by an electrokinetic technique (EK method) was examined for the agricultural soil, and the numerical model was developed. In the examination for the agricultural soils, the laboratory experiment was done for Cd and Cs. The nitric acid with the pH adjustment function was examined in the experiment. About the complex ion formation, the iron chloride was added, and the effect on the movement of the heavy metal was examined. As a result, it has been understood that the effect of the movement of the heavy metal rises in adding the nitric acid to the cathode tank, neutralizing electrobath, and keeping an acid side. Moreover, the following three models were compared in the development of the numerical model, and the feature was examined. (1)only the transportation process, (2)transportation process with the dissolution precipitation reaction based on the pH, and (3) transportation process with the cation-exchange reaction.

Free Research Field

農業農村工学