Online ISSN: 1884-4111 Print ISSN: 0033-8303
Radioisotopes 65(1): 7-14 (2016)

資料Materials (Data)

東京電力福島第一原子力発電所港湾内の汚染海水から放射性物質を除去する吸着繊維の開発(1)放射性セシウムの除去Development of Adsorptive Fiber Capable of Removing Radioactive Substances from Contaminated Water in the Harbor of TEPCO Fukushima Daiichi Nuclear Power Plant(1) Removal of Radioactive Caesium

千葉大学工学部共生応用化学科Department of Applied Chemistry and Biotechnology, Chiba University ◇ 263–8522 千葉県千葉市稲毛区弥生町1–331–33 Yayoi-cho, Inage-ku, Chiba Pref. 263–8522, Japan

受付日:2015年8月25日Received: August 25, 2015
受理日:2015年11月9日Accepted: November 9, 2015
発行日:2016年1月15日Published: January 15, 2016


Part of radioactive substance-containing water leaked from the reactor buildings of TEPCO Fukushima Daiichi Nuclear Power Plant has flowed into seawater area in front of Unit 1 to 4. A direct immersion of adsorbent in seawater and subsequent recovery of it from seawater are effective in removing radioactive substances from seawater in simple, steady, and safe modes. We suggested the immersion of a braid of caesium-adsorptive fiber in the seawater area for the removal of radioactive caesium ions. Here, the preparation of the caesium-adsorptive fiber by radiation-induced graft polymerization and its performance of caesium removal are described.

Key words: Fukushima Daiichi Nuclear Power Plant; seawater; radioactive substance; adsorptive fiber; caesium removal; radiation-induced polymerization

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