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Fission-Product Separation as a Final Solution to the Problem of Storing Highly Radioactive Waste; La Separation des Produits de Fission Comme Solution Definitive du Stockage des Dechets Fortement Radioactifs; 0412 042b 0414 ; La Separacion de los Productos de Fision Como Solucion Definitiva del Problema del Almacenamiento de los Desechos de Elevada Radiactividad

Conference:

Abstract

At the 1955 Geneva Conference; it was suggested by Glueckauf that the problems presented by solutions of concentrated fission products could be dealt with by isolating caesium-137 and strontium-90 with a decontamination factor of at least 10{sup 4} so that, after conventional effluent processing, disposal could be effected in 10 to 20 years' time. This paper considers the suggestion in the light of the present situation. Thanks to the progress made in methods of separating caesium and strontium it now seems feasible to obtain this factor of 10{sup 4} under industrial conditions. The following methods are very promising: (a) For caesium-137: precipitation by phosphotungstic acid, exchange using an ammonium salt of a heteropoly-acid, fixation using a zirconium phosphate and (b) For strontium-90: oxalate precipitation, extraction by di-2 ethyl hexylphosphoric acid, exchange using various salts, strontium sulphate, etc. This progress in chemical techniques, backed up by advances in the industrial processing of effluents, indicate that Glueckauf's proposal is technically possible. In addition, the increasing use of large quantities of fission products, particularly in the SNAP programmes, justifies the outlay of capital, which will be recovered at least in part by the sale of the products made. There is no doubt that  More>>
Authors:
Raggenbass, A.; Lefevre, J. [1] 
  1. Centre d'Etudes Nucleaires, Saclay (France)
Publication Date:
Feb 15, 1963
Product Type:
Conference
Resource Relation:
Conference: Symposium on Treatment and Storage of High-Level Radioactive Wastes Radioactive Wastes, Vienna (Austria), 8-12 Oct 1962; Other Information: 14 refs., 5 tabs., 6 figs.; Related Information: In: Treatment and Storage of High-Level Radioactive Wastes. Proceedings of the Symposium on Treatment and Storage of High-Level Radioactive Wastes| 686 p.
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; CESIUM; CLADDING; DECONTAMINATION; EXTRACTION; FISSION PRODUCTS; GLASS; HALF-LIFE; HIGH-LEVEL RADIOACTIVE WASTES; OXALATES; PRECIPITATION; RADIOACTIVE WASTE DISPOSAL; RADIOACTIVE WASTE PROCESSING; RADIOACTIVE WASTE STORAGE; REFRACTORIES; SALES; SALTS; STRONTIUM; STRONTIUM 90; SULFATES; TUNGSTOPHOSPHORIC ACID; ZIRCONIUM PHOSPHATES
OSTI ID:
22188129
Research Organizations:
International Atomic Energy Agency, Vienna (Austria)
Country of Origin:
IAEA
Language:
French
Other Identifying Numbers:
Other: ISSN 0074-1884; TRN: XA13M3574012630
Submitting Site:
INIS
Size:
page(s) 141-151
Announcement Date:
Feb 06, 2014

Conference:

Citation Formats

Raggenbass, A., and Lefevre, J. Fission-Product Separation as a Final Solution to the Problem of Storing Highly Radioactive Waste; La Separation des Produits de Fission Comme Solution Definitive du Stockage des Dechets Fortement Radioactifs; 0412 042b 0414 ; La Separacion de los Productos de Fision Como Solucion Definitiva del Problema del Almacenamiento de los Desechos de Elevada Radiactividad. IAEA: N. p., 1963. Web.
Raggenbass, A., & Lefevre, J. Fission-Product Separation as a Final Solution to the Problem of Storing Highly Radioactive Waste; La Separation des Produits de Fission Comme Solution Definitive du Stockage des Dechets Fortement Radioactifs; 0412 042b 0414 ; La Separacion de los Productos de Fision Como Solucion Definitiva del Problema del Almacenamiento de los Desechos de Elevada Radiactividad. IAEA.
Raggenbass, A., and Lefevre, J. 1963. "Fission-Product Separation as a Final Solution to the Problem of Storing Highly Radioactive Waste; La Separation des Produits de Fission Comme Solution Definitive du Stockage des Dechets Fortement Radioactifs; 0412 042b 0414 ; La Separacion de los Productos de Fision Como Solucion Definitiva del Problema del Almacenamiento de los Desechos de Elevada Radiactividad." IAEA.
@misc{etde_22188129,
title = {Fission-Product Separation as a Final Solution to the Problem of Storing Highly Radioactive Waste; La Separation des Produits de Fission Comme Solution Definitive du Stockage des Dechets Fortement Radioactifs; 0412 042b 0414 ; La Separacion de los Productos de Fision Como Solucion Definitiva del Problema del Almacenamiento de los Desechos de Elevada Radiactividad}
author = {Raggenbass, A., and Lefevre, J.}
abstractNote = {At the 1955 Geneva Conference; it was suggested by Glueckauf that the problems presented by solutions of concentrated fission products could be dealt with by isolating caesium-137 and strontium-90 with a decontamination factor of at least 10{sup 4} so that, after conventional effluent processing, disposal could be effected in 10 to 20 years' time. This paper considers the suggestion in the light of the present situation. Thanks to the progress made in methods of separating caesium and strontium it now seems feasible to obtain this factor of 10{sup 4} under industrial conditions. The following methods are very promising: (a) For caesium-137: precipitation by phosphotungstic acid, exchange using an ammonium salt of a heteropoly-acid, fixation using a zirconium phosphate and (b) For strontium-90: oxalate precipitation, extraction by di-2 ethyl hexylphosphoric acid, exchange using various salts, strontium sulphate, etc. This progress in chemical techniques, backed up by advances in the industrial processing of effluents, indicate that Glueckauf's proposal is technically possible. In addition, the increasing use of large quantities of fission products, particularly in the SNAP programmes, justifies the outlay of capital, which will be recovered at least in part by the sale of the products made. There is no doubt that refractory sources with a very high resistance to attack by all external agents, constitute the most satisfactory means of storage for products so dangerous and of such long half-life. We believe, therefore, that both technically and psychologically, storing by means of concentrated sources with strong cladding is the most reliable method. A comparison of this method with that of fixation in glass is worthy of full and detailed examination. (author) [French] Glueckauf avait formule, a la Conference de Geneve en 1955, l'hypothese qu'une solution definitive aux problemes poses par les solutions de produits de fission concentres pouvait etre trouvee dans l'isolement du cesium-137 et du strontium-90 avec un facteur de decontamination d'au moins 10{sup 4}, ce qui permettrait d'envisager le rejet, apres un traitement d'effluents classique, au bout d'une periode de 10 a 20 ans. Le but du memoire est de faire le point de cette question en l'annee 1962. Les progres realises dans les methodes de separation du cesium et du strontium permettent d'envisager l'obtention de ce facteur 10{sup 4} dans des conditions exploitables industriellement. Des methodes pleines de promesses sont: a) Pour le cesium-137, la precipitation par l'acide phosphotungstique, l'echange sur un sel d'ammonium d'un heteropolyacide, la fixation par un phosphate de zirconium. b) Pour le strontium-90, la precipitation d'oxalate, l'extraction par l'acide di-2-ethyl-hexylphosphorique, l'echange sur des sels varies, sulfate de strontium, etc. Ces progres chimiques sont renforces par les progres realises dans le traitement industriel des effluents et permettent de considerer comme techniquement possible la solution preconisee par Glueckauf. Parallelement, le developpement de l'utilisation de grandes quantites de produits de fission, particulierement dans les programmes SNAP, justifie des investissements qui seront au moins pairtiellement recuperes par la vente des produits fabriques. Il est certain que des sources refractaires, a resistance tres elevee a tous les agents d'agression exterieurs, constituent le mode de stockage le plus satisfaisant pour des produits aussi dangereux et d'aussi longue periode. L'auteur considere done, techniquement et psychologiquement, Inverted-Exclamation-Mark /utilisation de sources concentrees a gainage riche comme le moyen de stockage presentant le plus de garanties. Une discussion comparative de cette methode avec la methode d'incorporation dans les verres meriterait un examen complet et approfondi. (author) [Spanish] En la Conferencia de Ginebra de 1955, Glueckauf formplo la hipotesis de que los problemas planteados por las soluciones de productos de fision concentrados podrian resolverse aislando el cesio-137 y el estroncio-90 con un factor de descontaminacion minimo de 10{sup 4}, lo que, despues de un tratamiento de efluentes ordinario permitiria proceder a la evacuacion al cabo de un periodo de 10 a 20 anos. La finalidad de esta memoria es exponer el estado de la cuestion en 1962. Los progresos realizados en los metodos de separacion del cesio y del estroncio permiten esperar la obtencion del mencionado factor 10{sup 4} en condiciones industrialmente explotables. He aqui los metodos que ofrecen mejores perspectivas: a) Para el cesio-137: la precipitacion mediante el acido fosfowolfrimico, el intercambio a base de una sal de amonio de un heteropoliacido, la fijacion mediante un fosfate de circonio, b) Para el estroncio-90: la precipitacion del oxalato, la extraccion mediante el acido di-2-etilhexil- fosforico, el intercambio a base de sales diversas, sulfato de estroncio, etc. Estos progresos en el terrenorde la quimica, a los que se suman los progresos realizados en el tratamiento industrial de los efluentes, permiten considerar tecnicamente posible la solucion propuesta por Glueckauf. Al mismo tiempo, el desarrollo de la utilizacion de grandes cantidades de productos de fision, particularmente dentro del marco de los programas SNAP, justifica la inversion de capitales que seran recuperados, poit lo menos parcialmente, mediante la venta de los productos fabricados. Es evidente que las fuentes refractarias, de muy alta resistencia frente a todos los agentes exteriores de ataque, constituyen la forma de almacenamiento mas satisfactoria para productos tan peligrosos y de periodo tan prolongado. Los autores consideran, pues, que desde el punto de vista tecnico y psicologico el empleo de fuentes concentradas con abundante revestimiento es el medio de almacenamiento que ofrece mayores garantias. Valdria la pena efectuar un estudio completo y detallado del metodo descrito comparandolo con el metodo de incorporacion de los desechos a masas vitreas. (author) [Russian] V 1955 godu na Zhenevskoj konferencii Gljukauf sformuliroval gipotezu o tom, chto okonchatel'noe reshenie problemy udalenija aktivnyh rastvorov, soderzhashhih produkty delenija, mohet byt' najdeno putem vydelenija cejeija-137 i stroncija-90 s kojefficientom ochistki porjadka menee 10{sup 4}, chto pozvolilo by posle vyderzhki 10-20 let svobodno udaljat' jeti othody posle sootvetstvujushhej pererabotki. Doklad presleduet cel' snova vernut'sja k jetomu voprosu v 1963 godu. Uspehi, dostignutye v metodah vydelenija cezija i stroncija, pozvoljaet poluchit' kojefficient ochistki porjadka 10{sup 4} v uslovijah promyshlennoj jekspluatacii ustanovki. Dlja cejeija-137 javljaetsja perspektivnym osazhdenie fosforvo.i'framatnoj kislotoj, obmen s ammonijnymi soljami geteropolikisloty, fiksacija fosfatom cirkonija, a dlja stroncija-90 - oksalatnoe osazhdenie, jekstrakcija di-2- jetilgeksilfosfornoj kislotoj, obmen s razlichnymi soljami, vkljuchaja sul'fat stroncija i dr. Jeti uspehi v oblasti himii vmeste s uspehami v oblasti promyshlennoj pererabotki jefljuentov sdelali vozmozhnym s tehnicheskoj tochki zrenija podtverdit' gipotezu Gljukaufa. Narjadu s jetim, razrabotka metodov ispol'zovanija bol'shih kolichestv produktov delenija, osobenno v sootvetstvii s programmami SNAP, chastichno opravdyvaet kapitalovlozhenija za schet prodazhi proizvodimoj produkcii. Ochevidno, chto ispol'zovanie ogneupornyh istochnikov, ustojchivyh k agressivnym vozdejstvijam vneshnej sredy, predstavljaet soboj primer, kotoryj naibolee otvechaet trebovanijam hranenija othodov, ves'ma opasnyh v techenie prodolzhitel'nogo perioda. My schitaem takzhe, chto s tehnicheskoj i psihologicheskoj tochek zrenija koncentrirovannye istochniki, pokrytye zashhitnoj obolochkoj, naibolee nadezhny kak sredstva hranenija radioaktivnyh othodov. Sravnenie jetogo metoda s metodom vvedenija radioaktivnosti v stekla zasluzhivaet bolee polnogo i glubokogo rassmotrenija. (author)}
place = {IAEA}
year = {1963}
month = {Feb}
}