对两种纳滤膜脱盐和乳糖截留效果的比较研究  

Two nanofiltration membrane interception comparative study of the effect of milk ultrafiltration permeate desalting and lactose

作　　者：王洋[1] 李晓东[1] 王妍[1] 张金凤[1] 

机构地区：[1]东北农业大学乳品科学教育部重点实验室,食品学院,哈尔滨150030

出　　处：《中国乳品工业》2013年第4期23-25,31,共4页China Dairy Industry

基　　金：国家科技部“十二五”科技支撑计划项(2011BAD09B01)

摘　　要：纳滤是一种可以将乳超滤透过液中的盐分和乳糖分离的过程，采用单因素试验测定两种纳滤膜在一定压力下透过液的膜通量、电导率、各种离子和乳糖的截留率，比较两种纳滤膜的脱盐和乳糖截留情况，旨在筛选出脱盐效果好且截留乳糖质量分数较高的纳滤膜。结果表明，在0．30-0．50MPa围内两种纳滤膜可使用，NF-1812纳滤膜比NF-270纳滤膜脱盐效果好，但截留乳糖效果差。NF-270纳滤膜适合脱盐而得到乳糖。Nanofiltration is a milk ultrafiltration through a process of separation of the liquid salt and lactose, using single-factor test determination of the two kinds of nanofiltration membrane through the liquid membrane flux under a certain pressure, the conductivity of various ionsand lactose retention rate, compare the two nanofiltration membrane desalting and lactose retention situation, designed to filter out the nanofiltration membrane desalination effect and retention of high lactose content. The resttlts showed that the two kinds of nanofiltration membrane in the range of 0.30-0.50 MPa use, the NF-1812 nanofiltration membrane NF-270 nanofiltration membrane desalination effect, but the interception lactose effect. NF-270 nanofiltration membrane for desalination to be lactose.

关 键 词：纳滤 纳滤膜 乳超滤透过液 脱盐 乳糖 

分 类 号：TS252.9[轻工技术与工程—农产品加工及贮藏工程]