| 膜蒸馏法淡化苦咸水中的膜污染初步研究 |
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| 引用本文： | 杨兰,马润宇.膜蒸馏法淡化苦咸水中的膜污染初步研究[J].水处理技术,2004,30(3):128-131. |
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| 作者姓名： | 杨兰 马润宇 |
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| 作者单位： | 1. 苏州科技学院化学化工系,江苏,苏州,215009
2. 北京化工大学化学工程学院,北京,100029 |
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| 摘 要： | 利用气隙式膜蒸馏考察了操作温度、料液中难溶盐种类及其饱和度以及料液中不溶颗粒等因素对膜渗透性能的影响。结果表明，硫酸钙、碳酸钙和氢氧化镁是苦咸水中的主要结垢物，它们在膜表面沉积、结垢，使膜通量下降，甚至会破坏膜的疏水性，对料液进行预处理可有效防止沉积物的出现。
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| 关 键 词： | 膜蒸馏法 苦咸水 膜污染 水处理工艺 沉积物 阻垢剂 |
| 文章编号： | 1000-3770(2004)03-0128-04 |
STUDY OF MEMBRANE FOULING FROM DESALINATION OF BRACKISH WATER BY MEMBRANE DISTILIATION |
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| YANG Lan,MA Run-yu.STUDY OF MEMBRANE FOULING FROM DESALINATION OF BRACKISH WATER BY MEMBRANE DISTILIATION[J].Technology of Water Treatment,2004,30(3):128-131. |
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| Authors: | YANG Lan MA Run-yu |
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| Affiliation: | YANG Lan1,MA Run-yu2 |
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| Abstract: | The effects of operation temperature,salt type,saturation level,and the presence of undissolving solids on the membrane permeability were studied by air-gap membrane distillation.The exults shown that the major components of these scales were calcium sulphate,calcium carbonate and magnesium hydroxide.They precipitated onto the membrane surface and as a result the permeate flux and quality declined.The fouling layer can be avoided when feed water is pretreated. |
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| Keywords: | brackish water membrane fouling membrane distillation |
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