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Title: Conditioning of Boron-Containing Low and Intermediate Level Liquid Radioactive Waste - 12041

Abstract

Improved cementation of low and intermediate level radioactive waste (ILW and LLW) aided by vortex electromagnetic treatment as well as silica addition was investigated. Positive effects including accelerated curing of boron-containing cement waste forms, improve end product quality, decreased product volume and reduced secondary LRW volume from equipment decontamination were established. These results established the possibility of boron-containing LRW cementation without the use of neutralizing alkaline additives that greatly increase the volume of the final product intended for long-term storage (burial). Physical (electromagnetic) treatment in a vortex mixer can change the state of LRW versus chemical treatment. By treating the liquid phase of cement solution only, instead of the whole solution, and using fine powder and nano-particles of ferric oxides instead of separable ferromagnetic cores for the activating agents the positive effect are obtained. VET for 1 to 3 minutes yields boron-containing LRW cemented products of satisfactory quality. Silica addition at 10 % by weight will accelerate curing and solidification and to decrease radionuclide leaching rates from boron-containing cement products. (authors)

Authors:
 [1];  [2]
  1. SUE SIA 'Radon', Moscow (Russian Federation)
  2. Vernadsky Institute of Geochemistry and Analytical Chemistry Russian Academy of Sciences, Moscow (Russian Federation)
Publication Date:
Research Org.:
WM Symposia, 1628 E. Southern Avenue, Suite 9-332, Tempe, AZ 85282 (United States)
OSTI Identifier:
22293378
Report Number(s):
INIS-US-14-WM-12041
TRN: US14V1031114902
Resource Type:
Conference
Resource Relation:
Conference: WM2012: Waste Management 2012 conference on improving the future in waste management, Phoenix, AZ (United States), 26 Feb - 1 Mar 2012; Other Information: Country of input: France; 3 refs.
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; 36 MATERIALS SCIENCE; CEMENTS; DECONTAMINATION; INTERMEDIATE-LEVEL RADIOACTIVE WASTES; LIQUID WASTES; LIQUIDS; SILICA; WASTE FORMS

Citation Formats

Gorbunova, Olga A., and Kamaeva, Tatiana S. Conditioning of Boron-Containing Low and Intermediate Level Liquid Radioactive Waste - 12041. United States: N. p., 2012. Web.
Gorbunova, Olga A., & Kamaeva, Tatiana S. Conditioning of Boron-Containing Low and Intermediate Level Liquid Radioactive Waste - 12041. United States.
Gorbunova, Olga A., and Kamaeva, Tatiana S. Sun . "Conditioning of Boron-Containing Low and Intermediate Level Liquid Radioactive Waste - 12041". United States.
@article{osti_22293378,
title = {Conditioning of Boron-Containing Low and Intermediate Level Liquid Radioactive Waste - 12041},
author = {Gorbunova, Olga A. and Kamaeva, Tatiana S.},
abstractNote = {Improved cementation of low and intermediate level radioactive waste (ILW and LLW) aided by vortex electromagnetic treatment as well as silica addition was investigated. Positive effects including accelerated curing of boron-containing cement waste forms, improve end product quality, decreased product volume and reduced secondary LRW volume from equipment decontamination were established. These results established the possibility of boron-containing LRW cementation without the use of neutralizing alkaline additives that greatly increase the volume of the final product intended for long-term storage (burial). Physical (electromagnetic) treatment in a vortex mixer can change the state of LRW versus chemical treatment. By treating the liquid phase of cement solution only, instead of the whole solution, and using fine powder and nano-particles of ferric oxides instead of separable ferromagnetic cores for the activating agents the positive effect are obtained. VET for 1 to 3 minutes yields boron-containing LRW cemented products of satisfactory quality. Silica addition at 10 % by weight will accelerate curing and solidification and to decrease radionuclide leaching rates from boron-containing cement products. (authors)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {7}
}

Conference:
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