Sever accident due to molten core of Nuclear Power Plant causes the production of steam which carries the radioactive iodine. It is important to retain the radioactive iodine from contaminated gas and steam before it is released into the environment. The purpose of this research is to investigate the removal efficiency of iodine in a submerged venturi scrubber for saturated steam at 100°C. Venturi Scrubber is submerged in a venturi tank filled with liquid which is alkaline by adding sodium hydroxide (NaOH) and sodium thiosulphate (Na_2S_2O_3) in scrubbing water. Saturated Steam of 100 °C is injected into an experimental loop. Iodine removal efficiency is investigated for saturated steam at various compressed gas flow rate 330, 420, and 510 kg/s. Inlet and outlet concentration are measured at the sampling points of an experimental loop to calculate the iodine removal efficiency. The maximum removal efficiency of 99.4% is achieved at gas mass flow rate of 510 kg/s.
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机译：由于核电厂核心熔融造成的严重事故导致产生了带有放射性碘的蒸汽。在被污染的气体和蒸汽释放到环境中之前，要保留放射性碘，这一点很重要。这项研究的目的是研究在100°C下浸没的文氏管洗涤器中饱和蒸汽去除碘的效率。通过在洗涤水中添加氢氧化钠（NaOH）和硫代硫酸钠（Na_2S_2O_3），将文丘里洗涤器浸没在充满碱性液体的文丘里槽中。将100°C的饱和蒸汽注入实验回路。研究了在330、420和510 kg / s的各种压缩气体流速下饱和蒸汽的碘去除效率。在实验回路的采样点处测量入口和出口的浓度，以计算去除碘的效率。气体质量流量为510 kg / s时，最大去除效率为99.4％。
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