高放泥浆研究Ⅱ.模拟高放泥浆中α核素的去除

PRELIMINARY STUDY OF HIGH-LEVEL RADIOACTIVITY SLUDGE Ⅱ. STUDY ON α-NUCLIDES REMOVAL METHOD OF THE SIMULATED HLRS

摘要: 高放泥浆中Np ,Pu和Am等α核素对泥浆的固化处理带来非常不利的影响 ,用洗涤法研究了模拟高放泥浆中α核素的去除工艺。以 1mol/LHNO3 为洗涤剂 ,泥浆中Am的去除率可达95%以上 ,Np ,Pu的去除率分别为 85% ,80 %

Abstract: Alpha nuclides such as Np,Pu and Am in high level radioactive sludge (HLRS) are very harmful for its solidification process. If the sludge is solidified without pretreatment, the solidified waste is alpha bearing. Disposal of such wastes is very difficult and expensive. Removal of the alpha nuclides by washing method from HLRS is studied. Washing percentage of Np, Pu and Am is 85 %, 80 % and more than 95 %, respectively, when 1 mol/L HNO 3 is chosen as detergent.