摘要
以F eC l3改性羧甲基纤维素(CM C),使得水溶性CM C膜改性为疏水性阳离子交换膜CM C-F e,该膜能稳定存在于酸碱溶液中.用扫描电镜观察其表面形态,IR分析表明改性羧甲基纤维素中的-COOH吸收峰发生了位移.将其应用于电渗析去除高浓度氨氮废水的处理中,结果表明,该膜对氨氮的选择透过性较好,能有效地去除水中氨氮,去除率可达90%.NH4+的迁移过程符合一级反应动力学.
An insoluble CMC-Fe membrane was prepared by being linked soluble carboxymethylcellulose with FeCl3. The membrane as a cationic exchanging membrane in electrodialysis was applied in treating wastewater with high concentration of inorganic ammonia and azote. The results of experiment showed that it was well-selective to ammonia and azote. The percentage of the removal of ammonia and azote in wastewater is up to 90%. The migration process of NH4^＋ is following one class reaction kinetics.
出处
《福建师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2006年第4期63-66,共4页
Journal of Fujian Normal University：Natural Science Edition
基金
福建省自然科学基金资助项目(A9910009)
福建省教育厅资助项目(JB05314JA02189)
关键词
改性羧甲基纤维素
离子交换膜
电渗析
氨氮
carboxymethyl-cellulose
ion-exchange membrane
electrodialysis
ammonia and azote
