| PVDF中空纤维疏水膜的鼓气吸收法海水提溴性能研究 |
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| 引用本文： | 武春瑞,郝福锦,贾悦,吕晓龙,蹇锡高.PVDF中空纤维疏水膜的鼓气吸收法海水提溴性能研究[J].功能材料,2009,40(9). |
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| 作者姓名： | 武春瑞 郝福锦 贾悦 吕晓龙 蹇锡高 |
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| 作者单位： | 1. 天津工业大学,生物化工研究所,中空纤维膜材料和膜过程教育部重点实验室,天津,300160
2. 大连理工大学,高分子材料研究所,辽宁省高性能树脂工程技术研究中心,辽宁,大连,116012 |
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| 基金项目： | 国家自然科学基金资助项目(20706003);;国家高技术研究发展计划(863计划)资助项目(2008AA06Z303);;国家“十一五”科技支撑计划资助项目(2006BAB03A06);;天津市重点基金资助项目(09JCZDJC26300) |
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| 摘 要： | 利用聚偏氟乙烯(PVDF)中空纤维疏水膜进行鼓气膜吸收(ABMA)海水提溴实验.考察了吸收液浓度、温度和鼓气强度等操作条件对PVDF膜的提溴性能的影响;研究了中空纤维膜壁厚,组件形式、长度、装填密度等对ABMA提溴性能的影响.结果表明:PVDF疏水膜的壁厚增加,ABMA过程的脱溴率、溴吸收率和膜的有效溴通量明显降低;直型组件更适合ABMA提溴过程,且组件长度、装填密度增加,膜的有效溴通量降低而溴的吸收量明显提高.用内径0.80mm,壁厚0.15mm的PVDF膜,制成长90mm、装填密度14.4%的直型膜吸收组件,在鼓气强度500mol/(m2·h),吸收液浓度10mmol/L,22℃下,ABMA过程的脱溴率约89.5%,溴吸收率约68.6%,膜的有效溴通量约0.41kg/(m2·h).
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| 关 键 词： | 鼓气膜吸收 聚偏氟乙烯 中空纤维疏水膜 海水提溴 |
The bromine extraction performance of polyvinylidene fluoride hydrophobic hollow fiber membranes in air blowing membrane absorption process |
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| WU Chun-rui
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HAO Fu-jin
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JIA Yue
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LU Xiao-long
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JIAN Xi-gao.The bromine extraction performance of polyvinylidene fluoride hydrophobic hollow fiber membranes in air blowing membrane absorption process[J].Journal of Functional Materials,2009,40(9). |
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| Authors: | WU Chun-rui HAO Fu-jin JIA Yue LU Xiao-long JIAN Xi-gao |
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| Affiliation: | 1.Key Laboratory of Hollow Fiber Membrane Materials and Membrane Process;Ministry of Education;Institute of Biological and Chemical Engineering;Tianjin Polytechnic University;Tianjin 300160;China;2.Department of Polymer Science & Materials;Liaoning Research Center of High-performance Resin Engineering and Technology;Dalian University of Technology;Dalian 116012;China |
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| Abstract: | Novel hydrophobic polyvinylidene fluoride(PVDF) hollow fiber membranes were adopted in air blowing membrane absorption(ABMA) process for the purpose of bromine extraction from seawater.The effect of air blowing intensity,the concentration and temperature of the absorbent solution on the bromine extraction performance was investigated.The influence of the thickness of PVDF membranes,the type,length and packing density of membrane modules was studied.The results showed that the bromine absorption rate and eff... |
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| Keywords: | air blowing membrane absorption polyvinylidene fluoride hydrophobic hollow fiber membrane bromine extraction of seawater |
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