HE Jingtao1, LIANG Manchun1, CHEN Anying1, YUE Feng2, HE Shuijun1
1. Institute of Public Safety Research, Department of Engineering Physics, Tsinghua University, Beijing 100084, China; 2. Nuclear and Radiation Safety Center, Ministry of Ecology andEnvironment of the People's Republic of China, Beijing 100010, China
Abstract：Current methods for detecting 14C in water are very slow and use large amounts of nitrogen. This study used a degassing membrane to improve the 14C detection in water. A 14C water separation device built using the degassing membrane was evaluated experimentally for acidic conditions to evaluate the effects of various factors on the nitrogen consumption and time. The experimental results show that the 14C separation in water using the degassing membrane has a 95% inorganic carbon recovery rate with short operating times and less nitrogen consumption.
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2020, Vol. 60 
