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陆地处置的安全性评价是放射性废物处置的核心问题,因而也是世界各国共同关注的问题。日本低放废物的陆地处置目前正处在安全性研究阶段,已经做了比较多的工作。本文就赴日考察期间了解的情况简述如下:一、人工屏障安全性实证研究1.低放废物固化体长期浸出性试验日本原子能环境治理中心用“冷”试验进行模拟废物固化体长期浸出工程试验,他们以实际规模(1:1)的非放射性固化体(水泥、沥清固化体)在海水中和陆水(地面水)中进行为期三年时间的浸出试验,是从1982年开始准备的,1984年在进行试验装置调试,固化体模拟试制和预备试验的基础上开始了水泥固化体和沥青固化体在海水中的
Safety evaluation of land disposal is the core issue of disposal of radioactive waste and therefore is a common concern of all countries in the world. Japan’s low-level waste land disposal is currently in the security research phase, has done more work. In this paper, to understand the situation during the visit to Japan are summarized as follows: First, the artificial barrier safety of empirical research 1. Low-level waste solidified long-term leaching test Japan’s Atomic Energy Environmental Control Center “cold” test simulated waste solidified long-term leaching project Test, they conducted a three-year leaching test in seawater and inland water (surface water) on a real scale (1: 1) non-radioactive solid body (cement, bitumen solidified) starting from 1982 , In 1984 in the commissioning of test equipment, curing body simulation trial and preparation based on the start of the cement cured body and asphalt curing body in seawater