Title: Radioactive wastewater treatment using a mixture of TANNIX sorbent and VARION mixed bed ion exchange resin

Authors: G. Patzay, P. Tilky, J. Schunk, T. Pinter, F. Feil, K. Hamaguchi, L. Weiser

Addresses: Budapest University of Technology and Economics, Budafoki ut 8, 1111 Budapest, Hungary. ' NPP Paks, 7031 Paks POB 71, Hungary. ' NPP Paks, 7031 Paks POB 71, Hungary. ' NPP Paks, 7031 Paks POB 71, Hungary. ' NPP Paks, 7031 Paks POB 71, Hungary. ' Mitsubishi Nuclear Fuel Co. Ltd, 622-1 Funaishikawa Tokai-mura, Naka-gun, Ibaraki 319-1197, Japan. ' Budapest University of Technology and Economics, Budafoki ut 8, 1111 Budapest, Hungary

Abstract: A wastewater treatment system has been developed by using a mixture of ammonium-insoluble tannin (TANNIX, this is the trademark of an adsorbent made by Mitsubishi Nuclear Fuel Co. Ltd) and mixed (strong acid cation exchanger and strong base anion exchanger) ion exchange resin (MIX) for the selective separation of transuranium isotopes, including Pu, Am, Cm, and U, as well as fission and radioactive corrosion products from boric acid solution (pH ∼ 4.1). The equilibrium and fixed bed sorption experiments resulted in K_d values of 10⁴–10⁵ ml/g, and decontamination factors of 1,000, with a breakthrough point between 1500 BV and 5000 BV of accumulated volume.

Keywords: selective sorption; transuranium; TRU aqueous waste; fission products; fixed bed ion exchange; radioactive wastewater; wastewater treatment; nuclear waste; nuclear energy; nuclear power; nuclear science; nuclear technology.

DOI: 10.1504/IJNEST.2006.011716

International Journal of Nuclear Energy Science and Technology, 2006 Vol.2 No.4, pp.328 - 341

Published online: 19 Dec 2006 *

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