聚酰胺非对称纳滤膜在印染废水深度处理中的应用  

ADVANCED TREATMENT OF DYE WASTEWATER BY A POLYAMIDE ASYMMETRIC NANOFILTRATION MEMBRANE

作　　者：任晓晶[1,2] 赵长伟[3] 张忠国 栾兆坤[3] 程言君 李继定[2] 

机构地区：[1]轻工业环境保护研究所,北京100089 [2]清华大学化学工程系,北京100084 [3]中国科学院生态环境研究中心环境水质学国家重点实验室,北京100085

出　　处：《水处理技术》2012年第3期67-70,共4页Technology of Water Treatment

基　　金：国家科技支撑项目(2011BAB02B03);国家863资助项目(2009AA063901);国家科技部"科研院所技术开发研究专项资金"资助项目(2010EG111021;2011EG111021)

摘　　要：利用自制的聚酰胺非对称纳滤膜处理水溶性阴离子染料废水,并与NF270商品膜性能进行了比较研究。在0.7 MPa和25℃的条件下,所制纳滤膜对3种阴离子染料的截留率均大于95%。24 h染料连续脱盐运行条件下,膜的水通量保持在50 L.m-2·h-1,染料截留率96%以上,脱盐率稳定在5%以下,具有较好的选择分离性和耐污染性。2种纳滤膜的性能对比研究表明,所制PMIA非对称纳滤膜的染料截留能力和耐高温性优于NF270商品膜,但膜通量稍低。The aromatic polyamide nanofiltration membrane was evaluated for the treatment of water-soluble dyestuff effluent. Simultaneously, NF270 commercial membrane was used as a reference. It was observed that the rejections of three dyes were all above 95% under 0.7 MPa at 25 ℃. The desalination-purification experiment of dye Direct Blue 71 and NaC1 mixed solution showed that the membrane could concentrate DB71 with a high flux （〉50L.m-2.h-1）, a high dye rejection （〉96%） and a salt retention lower than 5%. The dye rejections and high-temperature resistance was better than commercial NF270 membranes, but its membrane flux was slightly lower than that of commercial membranes.

关 键 词：纳滤膜 芳香聚酰胺 染料废水 深度处理 

分 类 号：TQ028.8[化学工程] X791[环境科学与工程—环境工程]