胶团强化超滤去除水中硝酸盐氮的实验研究  

Study on the removal of NO_3^- from wastewater by micellar-enhanced ultrafiltration

作　　者：赵宁[1] 王启山[1] 于宏兵[1] 张怡然[1] 

机构地区：[1]南开大学环境科学与工程学院,天津300071

出　　处：《工业水处理》2013年第1期45-47,共3页Industrial Water Treatment

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07208-002)

摘　　要：以表面活性剂CTAC和CPC为吸附载体,研究了胶团强化超滤(MEUF)对低浓度硝酸盐氮的截留效果。研究结果表明,以CTAC为表面活性剂进行胶团强化超滤时其对硝酸盐氮的截留率较CPC为表面活性剂时要高。当静置时间为10 min、pH=7、CTAC投加量为1.5倍CMC时,对硝酸盐氮的截留率最高,为97.33%,表明MEUF在低浓度硝酸盐氮废水处理中具有良好的应用前景。Using surfactants CTAC and CPC as adsorption carrier,the effect of micellar-enchanced ultrafiltration （MEUF） on the rejection of low-concentration NO3- has been studied. The results indicate that the rejection coefficient of NO3- by using surfactant CTAC is higher than that by using surfactant CPC. When the standing time is 10 min, pH=7, and CTAC dosage 1.5 times of CMC ,the rejection coefficient of NO3-is the highest, i.e. 97.33%, indi- cating the application of MEUF to the treatment of wastewater containing low-concentration nitrate has pretty good prospect.

关 键 词：胶团强化超滤 表面活性剂 硝酸盐氮 

分 类 号：X703[环境科学与工程—环境工程]