Development and Trials of an Improved Process for Decontamination of Liquid Radioactive Wastes from Radon Moscow Research and Production Association

被引：1

作者：

Savkin, A. E. ^{[1
]}

Karlin, Yu. V. ^{[1
]}

Maryakhin, M. A. ^{[1
]}

机构：

[1] State Unitary Enterprise, Radon Moscow Res & Prod Assoc, Joint Environm Engn & Res Ctr Radioact Waste Deco, 7-I Rostovskii Per 2-14, Moscow 119121, Russia

来源：

RADIOCHEMISTRY | 2011年 / 53卷 / 05期

关键词：

liquid radioactive wastes; ion exchange; reverse osmosis; ferrocyanide sorbent;

D O I：

10.1134/S1066362211050201

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Speciation of radionuclides in low-salinity liquid radioactive wastes (LRW) formed in the course of reprocessing and storage of radioactive wastes at the Radon Moscow Research and Production Association was studied. Cs-137 is present in LRW mainly in the ionic form; alpha-emitting radionuclides, in the colloidal form; and Sr-90, in both colloidal and ionic forms. Coagulation methods with FeCl3 and methods of peroxide and permanganate oxidation were tested for removing organic substances from LRW. A two-step reverse-osmosis apparatus was tested for removing the major fraction of radionuclides and salts from the LRW. Laboratory experiments on sorption refinement of the permeate from the first step of reverse osmosis were performed with ionexchange resins and an NZhS type ferrocyanide sorbent. A new flowsheet for a water-treatment installation (WTI), allowing considerable reduction of the volume of secondary radioactive wastes, was suggested. The WTI was put into operation in 2010.

引用

页码：559 / 562

页数：4