| 渗透膜蒸馏对液/液膜吸收过程的影响 |
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| 引用本文： | 郝卓莉,王冠平,朱振中,堵国成,陈坚,沈志松. 渗透膜蒸馏对液/液膜吸收过程的影响[J]. 膜科学与技术, 2004, 24(6): 5-9 |
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| 作者姓名： | 郝卓莉 王冠平 朱振中 堵国成 陈坚 沈志松 |
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| 作者单位： | 江南大学生物工程学院,无锡,214036;清华大学环境模拟与污染控制国家,重点联合实验室,北京,100084;江苏省微生物研究所,无锡,214063 |
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| 基金项目： | 江苏省应用基础研究资助项目(BS2002006) |
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| 摘 要： | 在使用液／液膜吸收技术脱除废水中挥发性污染物的过程中发现，在挥发性污染物被脱除出废水的同时，大量(纯)水也由废水向吸收液迁移，导致了吸收液体积的迅速膨胀．这一现象说明，在液／液膜吸收过程中存在有伴生的渗透膜蒸馏过程．文章探讨了伴生渗透膜蒸馏的产生机理，渗透通量与吸收液浓度的关系，以及对液／液膜吸收过程的产品浓缩、系统操作和传质速率的影响等方面的问题．
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| 关 键 词： | 膜吸收 渗透膜蒸馏 废水处理 挥发性污染物 |
| 文章编号： | 1007-8924(2004)06-0005-05 |
| 修稿时间： | 2003-05-07 |
Influence of osmotic membrane distillation on liquid/liquid membrane absorption process |
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| HAO Zhuoli,WANG Guanping,ZHU Zhenzhong,DU Guocheng,CHEN Jian,SHEN Zhisong. Influence of osmotic membrane distillation on liquid/liquid membrane absorption process[J]. Membrane Science and Technology, 2004, 24(6): 5-9 |
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| Authors: | HAO Zhuoli WANG Guanping ZHU Zhenzhong DU Guocheng CHEN Jian SHEN Zhisong |
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| Affiliation: | HAO Zhuoli~1,WANG Guanping~2,ZHU Zhenzhong~1,DU Guocheng~1,CHEN Jian~1,SHEN Zhisong~3 |
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| Abstract: | It was found that numerous water was also transferred into absorption solution with the removal of volatile pollutants from wastewater using the liquid/liquid membrane absorption process.As the result,the volume of absorption solution was expanded rapidly by the transferred waster.This phenomenon indicates that a coupled osmotic membrane distillation process is coexisted with the liquid/liquid membrane absorption process.The mechanism of the coexisted osmotic membrane distillation process,the relationship of osmotic flux and the concentration of absorption solution,as well as the influence of the coupled osmotic membrane distillation on products concentrating,process operating and mass transfer of volatile pollutants were also discussed. |
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| Keywords: | membrane absorption osmotic membrane distillation wastewater treatment volatile pollutants |
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