Behavior of tritium water in radioactive waste incineration plant

The radioactive waste incineration plant at Tokai Research Establishment, JAERI, was installed in 1966 and has been operated routinely. The exhaust-gas system of the incinerator consists of spray scrubber, electrostatic precipitator, cloth filter, HEPA filter and so on. This experimental program was carried out to examine the behavior of tritium water to various parts of the incineration plant when combustible waste contaminated with tritium water was incinerated. The experimental results were as follows. The collection rate of tritium water in each dust collector was 85% in the spray scrubber, and 6% as condensation water in electrostatic precipitator, gas cooler and HEPA filter. Further the release rate of tritium water from stack was 9%. (author)