| 液/液膜吸收过程中伴生渗透蒸馏的抑制 |
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| 引用本文： | 王冠平,施汉昌,沈志松.液/液膜吸收过程中伴生渗透蒸馏的抑制[J].膜科学与技术,2004,24(6):29-33,37. |
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| 作者姓名： | 王冠平 施汉昌 沈志松 |
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| 作者单位： | 1. 清华大学环境科学与工程系,环境模拟与污染控制国家重点联合实验室,北京,100084
2. 江苏省微生物研究所,无锡,214063 |
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| 摘 要： | 着重探讨了抑制液／液膜吸收过程中伴生渗透蒸馏的方法及其影响因素、实验结果表明，采用加热浓溶液、冷却稀溶液的方法，可以有效抑制住液／液膜吸收过程中伴生的渗透蒸馏作用．实验发现，实际所需的浓溶液和稀溶液间的最小抑制温差要高于理论值1．2～2．8倍．膜材料性能、温差极化以及温度对渗透通量的影响是造成这种偏差的主要原因．
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| 关 键 词： | 废水处理 膜分离 膜吸收 渗透蒸馏 膜蒸馏 膜材料 |
| 文章编号： | 1007-8924(2004)06-0029-05 |
Inhibition of coupled osmotic distillation in liquid/liquid membrane absorption process |
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| WANG Guanping,SHI Hanchang,SHEN Zhisong nt of Environmental Science and Engineering,Tsinghua University,Beijing ,China, . Jiangsu Institute of Microbiology,Wuxi ,China.Inhibition of coupled osmotic distillation in liquid/liquid membrane absorption process[J].Membrane Science and Technology,2004,24(6):29-33,37. |
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| Authors: | WANG Guanping SHI Hanchang SHEN Zhisong nt of Environmental Science and Engineering Tsinghua University Beijing China Jiangsu Institute of Microbiology Wuxi China |
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| Affiliation: | WANG Guanping~1,SHI Hanchang~1,SHEN Zhisong~2 nt of Environmental Science and Engineering,Tsinghua University,Beijing 100084,China, 2. Jiangsu Institute of Microbiology,Wuxi 214063,China) |
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| Abstract: | The inhibition of the coupled osmotic distillation (OD) in membrane absorption process and its influencing factors were emphatically explored. The experimental results indicate that the coupled OD can be effectively inhibited by heating concentrated solution and cooling dilute solution. It was found that the observed minimum inhibition temperature difference (MITD) between concentrated and dilute solutions is 1.5 to 2.8 times higher than the theoretical MITD. The deviation between experimental and theoretical MITDs is mainly caused by membrane property, temperature polarization and the influence of temperature on OD flux. |
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| Keywords: | membrane absorption osmotic distillation membrane distillation |
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