核化学与放射化学2017，Vol.39Issue(2)：183-186,4.DOI:10.7538/hhx.2017.39.02.0183
气隙式膜蒸馏处理低放废液
Treatment of Low Level Radioactive Waste Liquidby Air Gap Membrane Distillation
摘要
Abstract
Low level radioactive waste liquid occupies a large proportion of radioactive waste.China has formulated strict emission standards, especially for inland nuclear power plant, which need to choose more efficient processing technology, it is necessary to study the purification effect of treatment of low level radioactive waste liquid by membrane distillation.Research on the purification effect of treatment of trace Sr2+ and Cs+ in simulating low level radioactive waste liquid by air gap membrane distillation, and the effect of the temperature difference and flow rate on the purifying effect, the low level radioactive waste liquid in spent fuel reprocessing plant were treated.Research shows that: the average retention rates of trace Sr2+ and Cs+ by membrane distillation are greater than 99.99%, which the decontamination factor can reach more than 10.4 orders of magnitude;the temperature difference and flow rate have no effect on the purifying effect of membrane distillation;membrane distillation processes the low level waste liquid without any pretreatment, in more 4 days the average total alpha activity concentration of the distilled liquid is 0.04 Bq/L, the average total beta activity concentration is 15.13 Bq/L, far below the discharge standard of the spent fuel reprocessing plant.关键词
气隙式膜蒸馏/低放废液/净化效果/Sr2+/Cs+Key words
air gap membrane distillation/low level radioactive waste water/purification effect/Sr2+/Cs+分类
化学化工引用本文复制引用
张玮钰,金畅,肖德涛..气隙式膜蒸馏处理低放废液[J].核化学与放射化学,2017,39(2):183-186,4.基金项目
国家自然科学基金资助项目(11475082) （11475082）
