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The Treatment of Hexavalent Chromium in Waste Liquid From Fugen Decommissioning

[+] Author Affiliations
Nobuo Ishizuka, Yuji Sato, Wataru Fujiwara

Japan Atomic Energy Agency, Tsuruga, Fukui, Japan

Yuki Yahiro, Seiji Yamamoto, Koji Negishi

Toshiba Corporation, Kawasaki, Kanagawa, Japan

Tadashi Fukushima, Hitoshi Sakai

Toshiba Corporation, Yokohama, Kanagawa, Japan

Norimasa Yoshida

Toshiba Corporation, Tokyo, Japan

Paper No. ICEM2010-40115, pp. 359-364; 6 pages
doi:10.1115/ICEM2010-40115
From:
  • ASME 2010 13th International Conference on Environmental Remediation and Radioactive Waste Management
  • ASME 2010 13th International Conference on Environmental Remediation and Radioactive Waste Management, Volume 1
  • Tsukuba, Japan, October 3–7, 2010
  • Conference Sponsors: Nuclear Engineering Division and Environmental Engineering Division
  • ISBN: 978-0-7918-5452-5 | eISBN: 978-0-7918-3888-4
  • Copyright © 2010 by ASME

abstract

Authors have developed the new treatment technique for hexavalent chromium (Cr6+ ) in the liquid waste. Cr6+ can be reduced to trivalent chromium (Cr3+ ) by hydrogen peroxide (H2 O2 ) under acidic condition with small amount of secondary waste. In 2010, this technique was applied to the cooling water for iron-water shield surrounding the core region in Fugen Nuclear Power Station of Japan Atomic Energy Agency (JAEA). The concentration of Cr6+ and total chromium (Cr) were reduced to less than 0.5ppm and 2.0ppm in liquid waste, respectively. These values satisfy the water pollution prevention law.

Copyright © 2010 by ASME

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