文献类型：期刊文献

中文题名：PVDF管式超滤处理医药中间体生化出水

英文题名：TREATMENT OF PHARMACEUTICAL INTERMEDIATE SECONDARY EFFLUENT USING PVDF TUBULAR MEMBRANE

作者：吴李[1];许振良[1];张娟[2];冯斐[1];程亮[1]

机构：[1]华东理工大学化学工程研究所膜科学与工程研发中心,上海200237;[2]南京大学环境学院污染控制与资源化国家重点实验室,江苏南京210093

年份：2009

卷号：35

期号：2

起止页码：80

中文期刊名：水处理技术

外文期刊名：Technology of Water Treatment

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：管式超滤;生化出水;PVDF;中水回用;预处理

外文关键词：tubular UF; bio-chemical effluent; PVDF; wastewater reuse; pretreatment

摘要：采用截留分子量分别为100000 Dalton(膜A)和50000 Dalton(膜B)PVDF管式超滤膜对医药中间体生化出水进行预处理,讨论了膜两侧压差、膜面流速、温度、pH、以及膜污染对两种膜性能的影响。结果表明,膜B效果较好;当膜B两侧压差0.12MPa、膜面流速3.4m·s-1、温度14℃、pH为6～8时,稳定通量为50L·m-2·h-1,化学清洗周期为72h。膜BCOD平均去除率25.5%,苯胺平均去除率40.5%,出水浊度小于0.5NTU、SDI小于1.5,满足后续反渗透膜的进水水质要求。同时,碱洗可以使膜B纯水透水率恢复系数大于80%,且重复性较好。
PVDF tubular ultrafiltration membranes with cutoff molecular weight of 100 000Dalton （Membrane A） and 50 000Dalton （Membrane B） were used for the pre-treatment of the pharmaceutical intermediate biochemistry drainage. The effect oftrans-membrane pressure, feed flow velocity, temperature, pH and membrane fouling on the UF processes was analyzed. The results showed that Membrane B was better than Membrane A. The constant flux was 50 L·m^-2·h^-1 at a trans-membrane pressure of 0.12 MPa, feed flow velocity of 3.4 m ·s^-1, a temperature of 14℃ and pH value of 6-8. The period of chemical cleaning was 72 hours. The average rejection ratio of COD was 25.5%. The average rejection ratio of aniline was 40.5%. The turbidity of permeate was lower than 0.5NUT while SDI was lower than 1.5. These results met the requirement of RO feed flow quality. Besides, the recovery effi- ciency of pure water for Membrane B was more than 80% after membrane cleaning by NaOH solution which pH was 12. It had a good repeatability.