Enhanced EDCs removal by membrane fouling during the UF process
Enhanced EDCs removal by membrane fouling during the UF process
复制标题
超滤过程中通过膜污染增强 EDC 去除率
DOI：
10.1016/j.desal.2013.12.027
复制
发表时间：
2014-03
期刊：
影响因子：
9.9
通讯作者：
Xia Huang
中科院分区：
文献类型：
--
作者：
Hu Zunfang;Si Xiurong;Zhang Zheyun;Wen Xianghua;Xia Huang
本文研究了模拟二级出水的膜污染行为，考察了膜污染和操作压力对膜污染的影响（25，30，50和75 kPa）对五种内分泌干扰物（EDCs）的排斥作用（雌酮、17β-雌二醇、雌三醇、17α-乙炔基雌二醇，和双酚A）在膜过滤过程中使用100 kDa的聚偏氟乙烯（PVDF）超滤（UF）膜在恒压死端过滤系统进行了探索。腐殖酸类化合物的污垢行为符合滤饼过滤规律。污染的超滤膜对不同浓度的内分泌干扰物的去除率提高了0.0%~ 58.3%。在不同压力下生长的滤饼具有不同的比电阻和孔隙率。在50 kPa下形成的滤饼具有最低的孔隙率56.8%，但具有最好的内分泌干扰物去除效率，这可能归因于吸附和尺寸排阻。此外，内分泌干扰物对污染膜的渗透能力不同，E3最容易流出。结果表明，以去除内分泌干扰物为目标，以50 kPa为超滤操作压力，可获得较好的通量。
In the paper, fouling behavior of a synthetic secondary effluent was explored and influences of membrane fouling and operation pressures (25, 30, 50, and 75 kPa) on rejection of five endocrine disrupting chemicals (EDCs) (estrone, 17β-estradiol, estriol, 17α-ethynyl estradiol, and bisphenol A) were explored during the membrane filtration process using 100 kDa polyvinylidene fluoride (PVDF) ultrafiltration (UF) membrane under constant pressure dead-end filtration system. Fouling behavior of humic compounds was found to obey the rule of cake filtration. Fouled UF membrane revealed enhanced EDCs removal rate by 0.0% to 58.3% corresponding to different EDCs. Cakes grew under various pressures had different specific resistances and porosities. Cake formed under 50 kPa had the lowest porosity 56.8% but had the best EDCs removal efficiency, which may be attributed to adsorption and size exclusion. Besides, EDCs revealed different penetration abilities through fouled membrane with E3 being the most easy to flow out. It can be concluded that 50 kPa may be suitable for UF process operation aiming at EDCs removal and appropriate flux.
登录
查看更多内容
影响因子：
8.8
作者：
P. Jin;Xin Jin;Xiaochang C. Wang;X. Shi
通讯作者：
P. Jin;Xin Jin;Xiaochang C. Wang;X. Shi
影响因子：
9.5
作者：
Sheng Chang;T. Waite;A. Fane
通讯作者：
Sheng Chang;T. Waite;A. Fane
影响因子：
11.4
作者：
Zirui Yu;S. Peldszus;P. Huck
通讯作者：
Zirui Yu;S. Peldszus;P. Huck
影响因子：
9.5
作者：
A. Schäfer;L. Nghiem;Nadine Oschmann
通讯作者：
A. Schäfer;L. Nghiem;Nadine Oschmann
影响因子：
12.8
作者：
E. C. Devitt;F. Ducellier;P. Cote;M. Wiesner
通讯作者：
E. C. Devitt;F. Ducellier;P. Cote;M. Wiesner