Combined use of ionizing radiation and solid-phase extraction for water treatment

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K06674
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Nuclear engineering
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: Kumagai Yuta 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 原子力基礎工学研究センター, 研究職 (70455294)
• Co-Investigator(Renkei-kenkyūsha): KIMURA Atsushi 国立研究開発法人量子科学技術研究開発機構, 高崎量子応用研究所・先端機能材料研究部, 主幹研究員 (60465979)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: ゼオライト / 有機塩素化合物 / 放射線分解 / 吸着

Outline of Final Research Achievements

We studied effect of adsorption and condensation by zeolites on radiation-induced degradation of chlorinated aromatic compounds. This study aims to demonstrate that the solid-phase extraction using zeolites has potential for improving the efficiency of radiolytic treatments of aqueous organic pollutants. Among three zeolites examined in this study, a mordenite type zeolite (HMOR) that has a high Si to Al ratio exhibited high performance as the matrix for the degradation of chlorinated aromatics. The irradiation of HMOR induced degradation of adsorbed chlorinated aromatics and produced chloride ion. We found a significant increase in chloride ion production by HMOR. The increased chloride ion production indicates that the high concentration of adsorbed 2-ClPh led to effective use of the adsorbed energy of HMOR.

Free Research Field

放射線化学