摘要
本文通过在线实时监测研究了三醋酸纤维(CTA)正渗透膜的活性层在朝向料液(AL-FS)和汲取液(AL-DS)两种模式下的正渗透水通量、反向溶质通量、特性反向溶质通量等因素及其变化规律。在实验室条件下模拟了三醋酸纤维膜(CTA)对于不同浓度苦咸水的处理,当苦咸水浓度为2000ppmNaCl、5000ppmNaCl、8000ppmNaCl时,CTA膜活性层朝向对脱盐率几乎没有影响,AL-FS模式和AL-DS模式的脱盐率分别为96.49%和96.13%、97.40%和96.38%、98.04%和96.81%。研究结果对于进一步开发CTA正渗透系统和实用化具有重要意义。
This research has studied the variation of forward permeate flux, reverse solute flux and specific reverse solute flux and their changing rules in forward osmosis （FO） process in CTA FO membrane （CTA） with on-line real-time monitoring, when the membrane orientation was Active Layer-facing-Feed Solution （AL-FS） and Active Layer-facing-Draw Solution （AL-DS） . Under laboratory conditions, this research has simulated triaeetate membranes for brackish water treatment, when the concentration of brackish water was 2000ppmNaC1, 5000ppmNaC1 and 8000ppmNaC1, respectively. The active layer orientation of CTA membrane had little effect on the salt rejection rate, with the desalination rate of 96.49% and 96. 13%, 97.40% and 96. 38% , 98.04% and 96. 81% respectively in AL-FS mode and AL-DS mode. The results played important roles in the practicability and further development of the CTA penetration system.
出处
《四川环境》
2014年第2期17-24,共8页
Sichuan Environment
基金
重庆市重大科技公关项目资助(cstc2012gg-sfgc00002)
