17α-Ethinylestradiol removal from water by magnetic ion exchange resin

被引：0

作者：

Liang Wang ^{[1
,2
]}

Lu Liu ^{[2
]}

Zhaohui Zhang ^{[1
,2
]}

Bin Zhao ^{[1
,2
]}

Junjing Li ^{[1
,2
]}

Bingjie Dong ^{[2
]}

Nian Liu ^{[2
]}

机构：

[1] State Key Laboratory of Separation Membranes and Membrane Processes

[2] Department of Environmental Engineering, Tianjin Polytechnic University

来源：

Chinese Journal of Chemical Engineering | 2018年 / 26卷 / 04期

关键词：

Magnetic ion exchange resin; Non-ionic micro-pollutants; Ion exchange; 17α-Ethinylestradiol; Drinking water treatment;

D O I：

暂无

中图分类号：

TU991.2 [净水工程（给水处理）];

学科分类号：

0815 ;

摘要：

Magnetic ion exchange（MIEX） resins have received considerable attention in drinking water treatment due to their fast and efficient removal of dissolved organic carbon（DOC）. Two types of mechanisms, i.e., ion exchange,reversible and irreversible adsorption, may occur during pollutants removal by MIEX. This work examined the removal mechanism of 17α-Ethinylestradiol（EE2） by MIEX. As one of typical estrogen micro-pollutants,EE2 existed as neutral molecule in natural water, and its charge density was close to zero [（0.00000219 ±0.00000015） meq·（μg EE2）-1] based on the potentiometric titration method. However, the removal of EE2 by MIEX was much higher than that of other micro-pollutants previously reported. Multi-cycle adsorptionregeneration experiments and ion exchange stoichiometry analysis were conducted to elucidate the removal mechanism of EE2 by MIEX resin. The results suggested that the main removal mechanism of EE2 by MIEX was ion exchange instead of reversible micro-pore adsorption. The experimental analysis based on Donnan theory indicated that the internal micro-environment of resin beads was alkaline, in the alkaline environment EE2 would be ionized into negatively charged groups. As a result, ion exchange reaction occurred inside the pore of MIEX resin, and the removal process of EE2 by MIEX was dominated by the ion exchange reaction.

引用

页码：864 / 869

页数：6

共 12 条

[1]

Removal of dissolved organic carbon and bromide by a hybrid MIEX-ultrafiltration system: Insight into the behaviour of organic fractions[J] . Oriol Gibert,Neus Pages,Xavier Bernat,José Luis Cortina.Chemical Engineering Journal . 2017

[2]

Enhanced DOC removal using anion and cation ion exchange resins[J] . Miguel Arias-Paic,Kaelin M. Cawley,Steve Byg,Fernando L. Rosario-Ortiz.Water Research . 2016

[3] M-PGMA as a new water treatment agent to remove oxytetracycline from water [J].

Liu, Cheng ;

Wang, Bin ;

Deng, Yang ;

Wang, Jie ;

Chen, Wei ;

Liu, Yu .

WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY, 2016, 16 (02) :295-304

[4]

Removal of dissolved organic carbon from surface water by anion exchange and adsorption: Bench-scale testing to simulate a two-stage countercurrent process[J] . Katherine C. Graf,David A. Cornwell,Treavor H. Boyer.Separation and Purification Technology . 2013

[5]

Combined magnetic ion exchange and cation exchange for removal of DOC and hardness[J] . Sarah E.H. Comstock,Treavor H. Boyer.Chemical Engineering Journal . 2013

[6] Effects of magnetic ion exchange pretreatment on low pressure membrane filtration of natural surface water [J].

Huang, Haiou ;

Cho, Hyun-Hee ;

Schwab, Kellogg J. ;

Jacangelo, Joseph G. .

WATER RESEARCH, 2012, 46 (17) :5483-5490

[7]

Adsorptive characteristics of phosphate from aqueous solutions by MIEX resin[J] . Lei Ding,Chao Wu,Huiping Deng,Xinxi Zhang.Journal of Colloid And Interface Science . 2012 (1)

[8]

Long term case study of MIEX pre-treatment in drinking water;understanding NOM removal[J] . Mary Drikas,Mike Dixon,Jim Morran.Water Research . 2010 (4)

[9]

Exploring 17α-ethinylestradiol removal, mineralization, and bioincorporation in engineered bioreactors[J] . Taewoo Yi,Susan Mackintosh,Diana S. Aga,Willie F. Harper.Water Research . 2010 (3)

[10]

Magnetic ion-exchange resin treatment: Impact of water type and resin use[J] . Max R.D. Mergen,Bruce Jefferson,Simon A. Parsons,Peter Jarvis.Water Research . 2007 (8)

← 1 2 →