RO、NF与MD去除水中五种微量药物的效能研究

摘要

This paper investigated the removal efficiency of five trace pharmaceuticals,including carbamazepine (CBZ),ketoprofen (KEP),naproxene (NAP),diclofenac (DCF) and acetaminophen (ACE),which were detected frequently in aquatic environment,by reverse osmosis (RO),nanofiltration (NF) and membrane distillation (MD).The results show that RO and MD can remove these five selected drugs efficiently.During MD process,none of these pharmaceuticals was detected in the permeate; CBZ,KEP,NAP and DCF by RO process were not detected in the permeate neither.The removal efficiency of ACE was slightly lower,but it was also up to 96.5％.However,NF process had lower efficiency than MD and RO processes for removing drugs.The removal efficiency of KEP,NAP,DCF and ACE were 60.5％±0.5％,82.3％±0.7％,84.2％±0.4％,83.5％±1％,41.1％±0.2％ respectively.%以水体中经常暴露的5种微量药物污染物:酰胺咪嗪(CBZ)、酮洛芬(KEP)、萘普生(NAP)、双氯芬酸(DCF)和扑热息痛(ACE)为研究对象,考察了反渗透(RO)、纳滤(NF)、膜蒸馏(MD)3种膜分离技术对5种目标药物的去除效果.试验结果表明:RO与MD两种膜分离技术对5种目标药物均能高效地去除,其中MD工艺出水中5种目标药物均未检出；RO工艺出水中,CBZ、KEP、NAP和DCF 4种药物也未检出,基本实现了完全去除,ACE的去除率略低,但也达到了96.5％；相对而言,NF工艺对5种目标药物的去除效果稍差,其对CBZ、KEP、NAP、DCF和ACE的去除率分别为60.5％±0.5％、82.3％±0.7％、84.2％±0.4％、83.5％±1％、41.1％±0.2％.