The high-level waste at the Idaho Chemical Processing Plant (ICPP) is generated during the reprocessing of spent nuclear fuel. The fuel comes from nuclear reactors using highly-enriched uranium-235 fuel. This waste is primarily the first-cycle raffinate from the solvent extraction of dissolved fuel solutions, and is self-heating. The second- and third-cycle solvent extraction wastes are handled as high-level waste also.

Management practice for high-level waste at the ICPP is to store the liquid waste safely for a period not to exceed five years, calcine the liquid to a dry solid, and store the solid safely in engineered bins of Types 405 and 304 (0.06 percent carbon maximum) stainless steels where it will be retrievable at all times(1,2). After exposure of specimens in the radioactive dry solids for periods up to six years, the average-projected 500-year penetration rates are 20- and 5- mils for Types 405 and 304 stainless steels.

Subject
Cylinders, Aluminum, Zirconium, Steel coupons, Metal coupons, Solids, Storage, Cables, Carbon steel, Corrosion coupons, Corrosion allowance, Stainless steel, Wastes
© 1975 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1975
Association for Materials Protection and Performance (AMPP)
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