摘要
对于两种不同性能国产纳滤膜品种进行了氯化钠/硫酸钠体系的相关试验,运用误差最小化算法得出了电荷守恒条件下纳滤膜产水中两类盐分分离的数据,采用正交设计试验分析了给水含盐量及给水温度等因素对分盐效果的影响,明确了纳滤膜工艺中出现氯化钠负脱盐现象的原因.
Nanofiltration tests of mixed aqueous solutions of sodium chloride and sulfate sodium were carried out by employing two kinds of home-made membrane elements with different properties. By using the error minimization algorithm, the specific values of two kinds of salt separation in the nanofiltration membrane produced water under the condition of charge conservation were obtained. The orthogonal design test was used to analyze the different effects of salt content and temperature of feed water on the effect of salt separation. And the main factors of negative desalination sodium chloride in nanofiltration membrane process were identified.
作者
张小亚
苑宏英
石雪莉
张海生
黄―欣
靖大为
ZHANG Xiaoya;YUAN Hongying;SHI Xueli;ZHANG Haisheng;HUANG Xin;JING Dawei(School of Environmental and Municipal Engineering,Tianjin Chengjian University,Tianjin 300384,China;Tianjin Key Laboratory of Aquatic Science and Technology,Tianjin ChengjianUniversity,Tianjin 300384,China;China Joint Research Centre for Protective Infrastructure Technologyand Environmental Green Bioprocess,Tianjin 300384,China;Membrane Industry Association of China,Beijing 100029,China;Vontron Membrane Technology Co.,Ltd,,Beijing l00071,China)
出处
《膜科学与技术》
CAS
CSCD
北大核心
2020年第5期111-117,共7页
Membrane Science and Technology
基金
国家科技重大专项课题(2017ZX07107-002-04)
天津市水质科学与技术重点实验室开放基金资助项目(TJKLAST-PT-2016-06)。
关键词
纳滤膜工艺
浓盐水分盐
负脱盐现象
电荷守恒
NF membrane process
concentrated brine
negative desalination
charge conservation
