Novel purification method for spent nuclear fuel post-treatment tail gas

The invention discloses a novel purification method for spent nuclear fuel post-treatment tail gas. A spent nuclear fuel post-treatment tail gas purification system is simplified; under normal temperature condition, main nuclides such as 85Kr, 3H, 129I and 14C can be removed easier; meanwhile, NOx in the spent nuclear fuel post-treatment tail gas reaches the emission standard at a time, an efficient WESP wet electric dust removal demister is applied for the first time in the project, multiple filtering and adsorbing links in the spent nuclear fuel post-treatment tail gas purification process are omitted, and it is guaranteed that the spent nuclear fuel post-treatment tail gas can be purified and subjected to ultra-clean emission. The maximum value reaches 99.0%, it is guaranteed that the cost is reduced, waste is turned into wealth, and the expected purpose is well achieved. 一种用于乏核燃料后处理尾气的净化新方法，对乏核燃料后处理尾气净化系统删繁就简，在常温条件下，使之更易脱除，如85Kr、3H、129I、14C等几种主要核素，同时一次性使乏核燃料后处理尾气中的NOx达到排放标准，并且高效WESP湿电除尘除雾器在本项目首次应用，省却了乏核燃料