Microscopic and radioanalytical investigation of asbestos-containing decommissioning waste

被引：0
作者：
Koehler, Fabian [1 ]
Heule, Martin [1 ]
Jaeggi, Maya [1 ]
Dutheil, Paul [1 ,2 ]
Brand, Andreas [1 ]
Walter, Nick [1 ]
Mayer, Sabine [1 ]
机构：
[1] Paul Scherrer Inst, Dept Radiat Safety & Secur, Forschungsstr 111, CH-5232 Villigen, Switzerland
[2] Swiss Fed Inst Technol, Dept Chem & Appl Biosci, Lab Inorgan Chem, Vladimir Prelog Weg 1-5-10, CH-8093 Zurich, Switzerland
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2022年 / 331卷 / 12期
关键词：
Asbestos; Decommissioning waste; Nuclide specific analysis; Chromatographic separation; SEM EDS; PLM; CHRYSOTILE ASBESTOS; DECOMPOSITION; SEPARATION; MINERALS; URANIUM; CANCER; ACID;
D O I：
10.1007/s10967-022-08544-2
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
During decommissioning of nuclear facilities, possibly contaminated asbestos containing materials (ACM) emerge. In this work, we propose an analytical method to characterize ACM contaminated with alpha and beta nuclides by microscopic (light and electron microscopy) and radioanalytical techniques. For this purpose, a chromatographic separation is applied after decomposition of ACM by a lithium borate fusion at 1065 degrees C. The subsequent separation is performed with UTEVA-TRU-Sr chromatographic resins. Recovery rates for analyzed radionuclides were on an average of 80-90% for Am, Cm, Pu isotopes, and Sr-90. Compared to sample pre-treatment with hydrofluoric acid, the lithium borate fusion proves more suitable, while providing higher working safety.
引用
收藏
页码：5411 / 5421
页数：11
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