亲水性纳滤膜对水中多环芳烃去除性能的研究  

Removal of Polycyclic Aromatic Hydrocarbons in Water by Hydrophilic Nanofiltration Membrane

作　　者：刘继桥 王升欢 何本桥[1] LIU Ji-qiao;WANG Sheng-huan;HE Ben-qiao(State Key Laboratory of Separation Membranes and Membrane Process,School of Material Science and Engineering,Tiangong University,Tianjin 300387,China)

机构地区：[1]省部共建分离膜与膜过程国家重点实验室,材料科学与工程学院,天津工业大学,天津300387

出　　处：《胶体与聚合物》2022年第2期74-77,共4页Chinese Journal of Colloid & Polymer

基　　金：国家自然科学基金项目(22178268、21776218);天津市科技计划(21ZYJDSN00130)。

摘　　要：多环芳烃(PAHs)作为一种水体中持久性有机污染物(POPs),对人体和生物具有高致癌和致畸危害。本文采用强亲水性纳滤膜分离水体中憎水性的萘、菲、荧蒽三种PAHs,探究了不同操作压力、溶液p H和离子强度对萘、菲、荧蒽分离性能的影响。结果表明,在0.5 MPa操作压力、溶液pH=9、离子强度(MgCl;)为600μS·cm;条件下,ANF-5纳滤膜对萘、菲、荧蒽的截留率分别为74.6%、96.3%、100%,渗透通量为108.5 L·m^(-2)·h^(-1),渗透截留性能明显优于文献报道结果。Polycyclic aromatic hydrocarbons (PAHs),as a kind of persistent organic pollutants (POPs)in water,have high carcinogenic and teratogenic hazards to human and organisms.In this paper,strong hydrophilic nanofiltration (NF) membrane was used to separate hydrophobic PAHs of naphthalene,phenanthrene and fluoranthene in water.The effects of different operating pressure,p H and ionic strength of feed solution on the separation performance of naphthalene,phenanthrene and fluoranthene were investigated.The results showed that under the operating pressure of 0.5 MPa,the p H of 9 and the ionic strength (MgCl;) of 600μS·cm;,the rejection of the NF membrane for naphthalene,phenanthrene and fluoranthene were 74.6%,96.3% and 100%respectively,and the permeation flux was 108.5 L·m^(-2)·h^(-1).The permeation and the rejection performance were significantly better than those reported in the literatures.

关 键 词：纳滤膜 强亲水性 多环芳烃 持久性有机污染物 

分 类 号：TQ028.8[化学工程]