电渗析处理含甘油废水过程中甘油迁移现象  

Glycerol Transport Research in Wastewater Containing Glycerol Treatment by Electrodialysis

作　　者：李腾飞 李会[1] 吴宗强 杨惠宇 LI Tengfei;LI Hui;WU Zongqiang;YANG Huiyu(Binzhou Polytechnic,Binzhou 256613,China)

机构地区：[1]滨州职业学院,山东滨州256613

出　　处：《化工管理》2024年第4期53-56,共4页Chemical Engineering Management

摘　　要：电渗析法处理环氧氯丙烷工业废水时,脱盐率达到99.8%以上。在脱盐的同时,也伴随着甘油跨膜迁移。文章将甘油的跨膜迁移过程分为自扩散、水迁移引起的扩散和离子迁移三种情况,并通过设计不同的扩散渗析实验探究各种扩散原因及影响比例。根据公式计算,电渗析脱除CaCl_(2)的过程中,甘油自扩散占甘油总迁移的7.11%,水迁移引起的扩散分别占了甘油总迁移量的61.57%,离子迁移引起的扩散占甘油总迁移量的31.32%。实验结果表明,绝大多数甘油迁移是由于水迁移引起的甘油扩散和离子迁移引起的甘油扩散。Epichlorohydrin industrial wastewater is treated by electrodialysis(ED),and the desalting rate is above 99.8%.At the same time as desalination,it is also accompanied by glycerol transmembrane migration.In this thesis,the transmembrane migration process of glycerol is divided into three situations:self-diffusion,diffusion caused by water migration and ion migration.Different diffusion dialysis experiments are designed to explore the reasons for various diffusion and the proportion of influence.According to the formula,during the removal of CaCl_(2) by electrodialysis,the self-diffusion of glycerol accounts for 7.11% of the total migration of glycerol,the diffusion caused by water migration accounts for 61.57% of the total migration of glycerol,and the diffusion caused by ion migration accounts for 31.32% of the total migration of glycerol.The experimental results indicate that the vast majority of glycerol migration is caused by glycerol diffusion caused by water migration and glycerol diffusion caused by ion migration.

关 键 词：电渗析 扩散 含甘油高盐废水 

分 类 号：TQ645.5[化学工程—精细化工]