原子能科学技术2018，Vol.52Issue(2)：193-198,6.DOI:10.7538/yzk.2018.52.02.0193
纳滤处理重铀酸铵沉淀母液的研究
Treatment of Ammonium Diuranate Mother Liquor by Nanofiltration
摘要
Abstract
Ammonium diuranate(ADU)mother liquor is a high salt content liquid waste.At present,silica gel adsorption method is adopted to treat it,but large amount secondary wastes will be produced in this process.NH4NO3could easily permeate nano-filtration(NF)membrane,while uranium will be rejected by the membrane.In this paper,the study of uranium retention by NF membrane was carried out in simulated ADU mother liquor with 40mg/L uranium and 35g/L NH4NO3.The results show that NF270 membrane has the optimum performance among the four chosen commercial membranes.When trans-membrane pressure is 1.0 MPa,cross flow velocity is 40cm/s,and feed temperature is 25 ℃,the uranium rejection rate by NF270 membrane is 97% and the permeate flux reaches 60 L/(m2·h).关键词
重铀酸铵沉淀母液/纳滤/铀/硝酸铵Key words
ammonium diuranate mother liquor/nanofiltration/uranium/ammonium nitrate分类
化学化工引用本文复制引用
袁中伟,汪润慈,晏太红,郑卫芳..纳滤处理重铀酸铵沉淀母液的研究[J].原子能科学技术,2018,52(2):193-198,6.基金项目
中国原子能科学研究院院长基金资助项目(YZ-20163119) （YZ-20163119）
