| 纳滤深度处理抗生素制药废水膜污染及其控制研究 |
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| 引用本文： | 魏新渝,王志,王纪孝,王世昌. 纳滤深度处理抗生素制药废水膜污染及其控制研究[J]. 膜科学与技术, 2009, 29(4) |
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| 作者姓名： | 魏新渝 王志 王纪孝 王世昌 |
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| 作者单位： | 1. 天津大学,化工学院,化学工程研究所;化学工程联合国家重点实验室(天津大学);天津市膜科学与海水淡化技术重点实验室,天津,300072
2. 天津大学,化工学院,化学工程研究所;天津市膜科学与海水淡化技术重点实验室,天津,300072 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 采用Osmonics的DK和DL纳滤膜对抗生素制药废水进行深度处理.对纳滤膜污染的影响因素进行了考察.结果表明,在相同条件下,DK膜的通量随时间的下降幅度小于DL膜,截留率大于DL膜.随着溶质浓度或溶液温度的升高,纳滤膜的通量下降幅度增大,截留率增大.采用ATR-FTIR及EDX分析膜面污染物质,并结合水质分析结果可知,3 h纳滤过程中引起膜污染的主要物质是硫酸钙、碳酸钙等无机物.为了控制膜污染,考察了在原料液中添加药剂对膜污染的影响.结果表明,添加盐酸或柠檬酸能使膜通量下降减缓,却使截留率降低;添加EDTA能使膜通量下降减缓,并使截留率增大.添加药剂后,膜面污染物的红外吸收峰被削弱,钙、硫和氧元素的质量百分比降低.其中添加EDTA后,膜面红外谱图及元素组成与清洁膜最接近.
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| 关 键 词： | 抗生素制药废水 纳滤 膜污染 膜性能 |
Membrane fouling and its controll in advanced treatment of antibiotic pharmaceutical wastewater with nanofiltration |
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| WEI Xinyu,WANG Zhi,WANG Jixiao,WANG Shichang. Membrane fouling and its controll in advanced treatment of antibiotic pharmaceutical wastewater with nanofiltration[J]. Membrane Science and Technology, 2009, 29(4) |
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| Authors: | WEI Xinyu WANG Zhi WANG Jixiao WANG Shichang |
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| Affiliation: | 1.Chemical Engineering Research Center;School of Chemical Engineering and Technology;Tianjin University;2.State Key Laboratory of Chemical Engineering;3.Tianjin Key Laboratory of Membrane Science and Desalination Technology;Tianjin 300072;China |
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| Abstract: | The Osmonics DK and DL nanofiltration membranes were used for advanced treatment of antibiotic pharmaceutical wastewater.The effects of some factors on membrane fouling were investigated.The results showed that under the same testing conditions,compared with DL membrane,DK membrane had lower flux decline and higher rejection.With increasing feed solute concentration or solution temperature,both the flux declines and the rejections of the NF membranes increased.The foulants on membrane surface were analyzed ... |
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