文献类型：期刊文献

英文题名：Effect of water matrix on the removal of antibiotics and estrogens by nanofiltration membranes

作者：Yu, Qinyu[1,2,3];Yang, Linyan[1,2,3];Li, Yejin[3];Chen, Xueming[4];Cao, Guomin[1,3];Meng, Shujuan[5];Bai, Lichun[6];Wang, Zhenqi[7,8]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Ind Wastewater Detoxicat & Resou, Shanghai 200237, Peoples R China;[2]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China;[3]East China Univ Sci & Technol, Sch Resources & Environm Engn, Shanghai 200237, Peoples R China;[4]Fuzhou Univ, Coll Environm & Safety Engn, Fuzhou 350116, Fujian, Peoples R China;[5]Beihang Univ, Sch Space & Environm, Beijing 100191, Peoples R China;[6]Cent South Univ, Sch Traff & Transportat Engn, Key Lab Traff Safety Track, Minist Educ, Changsha 410075, Peoples R China;[7]Tongji Univ, Coll Environm Sci & Engn, Shanghai 200092, Peoples R China;[8]Shanghai Acad Environm Sci, Shanghai 200233, Peoples R China

年份：2025

卷号：364

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20251118034176);WOS:【SCI-EXPANDED(收录号:WOS:001443986000001)】；

基金：This study was sponsored by the National Natural Science Founda-tion of China (52100085) and the Natural Science Foundation of Shanghai (21ZR1418000) .

语种：英文

外文关键词：Antibiotics; Estrogens; Nanofiltration; Calcium; Humic acid

摘要：This study provides novel insights into the interactions among humic acid (HA), calcium ion (Ca2+), and nanofiltration membranes, revealing their critical impact on rejecting nine antibiotics and six estrogens, common environmental pollutants. In the presence of HA, the normalized water flux of NF270 and NF90 was decreased to 92% and 89%, respectively, and was further reduced to 71%-83% and 74%-79% with the addition of Ca2+, resulting from the reduced hydrophilicity by HA-Ca-induced deposition. HA reduced antibiotic rejection by 27% for NF270 and 3% for NF90, attributed to weakened charge repulsion and size exclusion (reflected by decreased membrane surface charge and boron rejection). Adding Ca2+ further decreased antibiotic rejection by up to 48% for NF270 and 6% for NF90, as charge repulsion and size exclusion were further diminished. HA also decreased estrogen rejection by 8%-16% for NF270 and 5%-14% for NF90, due to weakened size exclusion. After adding Ca2+, estrogen rejection showed inconsistent trends due to competing effects of size exclusion and hydrophobic interaction. Therefore, size exclusion and charge repulsion are the main rejection mechanisms for the negatively charged antibiotics, however, size exclusion and hydrophobic interaction are for the neutral and hydrophobic estrogens. The reduced membrane permeability and selectivity highlight the importance of effectively managing organic matter and divalent cations in feedwater to ensure both treatment efficiency and long-term membrane stability.