Characteristic of removal polycyclic aromatic hydrocarbons (PAHs) from water by nanofiltration:effect of ionic strength and pH
PAHs,which have a disrupting effects on human s health,are increasingly noticed in aquatic environment.And it is essential to find an efficient way to remove PAHs from water.By contrast,nanofiltration technology is a better way than traditional methods.This paper offered a study on the impact of ionic strength and pH on the PAHs (naphthalene,phenanthrene and fluoranthene) removal by nanofiltration membrane.The water was used to nanofiltrate in the laboratory cross-flow membrane filtration unit.The experimental results indicated that there was a higher flux by BDXN-70 nanofiltration membrane than by BDXN-90 nanofiltration membrane and the rejection of PAHs was relatively efficiency for BDXN-70 membrane.The water background inorganic matter (pH,and ionic strength) effected the flux and PAHs rejections.The trace PAHs in water could be better rejected (rejections were more than 95%) by nanofiltration membrane stability at acidic solutions.There was little influence of rejection on different ionic strength except naphthalene.The lowest of naphthalene rejection in different ionic strength was 86%.
PAHs Endocrine Disrupting Compound Rejection nanofiltration
Xu-dong Wang Lei Wang Xiao-feng Guo Hui-hui zhang
School of Environmental and Municipal Engineering, Xian University of Architecture and Technology, Xian, 710055, China
国际会议
2013青岛国际脱盐大会(Qingdao International Conference 2013 on Desalination and Water Reuse)
青岛
英文
32-36
2013-06-25（万方平台首次上网日期，不代表论文的发表时间）