摘要
在两相电泳的基础上,针对含乙酸稀溶液的处理提出了两相电解电渗的技术.利用饱和水的正丁醇为有机相,以AM203阴离子交换膜为介质,开展普通电解电渗和两相电解电渗的研究工作,考察了浓度、电流密度等因素对电流效率、浓缩比以及水的电渗量的影响.结果发现较普通的电解电渗技术和两相电解电渗技术在浓缩比、水的电渗量的控制方面具有明显的优势,在本实验范围内,在两相电解电渗过程中基本没有发现水的电渗现象的发生,同样乙酸的回收率也可以达到100%.由此可以说明新的两相电解电渗技术对于环境稀溶液的处理是一种较为理想的方法.
Based on the technique of two-phase electrophoresis,a new technique of two-phase electro-electrodialysis for the treatment of acetic acid dilute solution was developed.The performance of the new technique was investigated with n-butanol as organic phase and with AM203 anion exchange membrane as separation medium.The influence of initial concentration and electrical current density on the electrical current efficiency,recovery,concentrated ratio and water flux has been studied.The results were compared with that of normal eletro-electrodialysis process.The experimental results show that the water flux can be controlled at very low level with the new technique.At lower concentration and lower electrical current density the water flux was nearly zero.The recovery ratio could be reached as much as 100% with the new technique.
出处
《膜科学与技术》
CAS
CSCD
北大核心
2005年第2期46-49,共4页
Membrane Science and Technology
基金
国家自然科学基金资助项目(29476243)
