摘要
试验分别研究了反渗透膜Duraslick RO2540和RE2540-TE对APT冶炼离子交换废水的处理效果。研究结果表明,在最佳压力条件下,Duraslick RO2540膜对Cl-的截留率为91.4%,产水率为16.9%;RE2540-TE膜对Cl-的截留率为93.4%,产水率为17.2%。在压力为1.7MPa,温度为25℃时,浓缩实验结果表明,产水中Cl-浓度和膜的截留率随着时间变化而逐渐增加,但膜通量逐渐减小,且RE2540-TE膜通量下降幅度较大。清洗后,RE2540-TE膜通量损失达到6%,而Duraslick RO2540膜通量恢复幅度为98%。
Two reverse osmosis (RO)membranes including Duraslick RO 2540 and RE 2540-TE were used for treating and reclaiming ion exchange water of ammonium paratungstate (APT)smelting.Experiments showed that on the condition of the best pressure,rejection of Cl-is 91.4% and water productivity is 16.9% to Duraslick RO2540 membrane,while to RE 2540-TE membrane,rejection of Cl-is 93.4% and water productivity is 17.2%.Results of the concentrating experiment on the condition of 1.7 MPa,25℃ showed that the concentration of...
出处
《环境科学与技术》
CAS
CSCD
北大核心
2010年第11期39-42,共4页
Environmental Science & Technology
基金
江西省科技支撑计划(CB200902055)
关键词
反渗透膜
膜通量
浓缩
离子交换废水
reverse osmosis membrane
membrane flux
concentrated treatment
ion exchange water
