Chemical cleaning of ultrafiltration membranes for polymer-flooding wastewater treatment: Efficiency and molecular mechanisms

doi:10.1016/j.memsci.2017.08.062

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Chemical cleaning of ultrafiltration membranes for polymer-flooding wastewater treatment: Efficiency and molecular mechanisms
	Liu, GC ; Li, L ; Qiu, LP ; Yu, SL ; Liu, P ; Zhu, YB ; Hu, J ; Liu, ZY ; Zhao, DS ; Yang, HJ
刊名	JOURNAL OF MEMBRANE SCIENCE
	2018
卷号	545 页码:348-357
关键词	Critical Micelle Concentration Response-surface Methodology Afm Force Spectroscopy Nanofiltration Membranes Sodium-hypochlorite Fouled Membranes Ptfe Surface Uf Membranes Optimization Temperature
ISSN号	0376-7388
DOI	10.1016/j.memsci.2017.08.062
文献子类	期刊论文
英文摘要	In a polymer-flooding wastewater treatment process, physically irreversible fouling of ultrafiltration (UF) membranes is severe and inevitable. Particularly, anionic polyacrylamide (APAM) aggravated flux loss is a challenge in flux recovery. Chemical cleaning procedures for polyvinylidene fluoride (PVDF) UF membranes fouled by polymers (e.g., APAM) were designed by investigating their cleaning efficiency, synergistic effect and molecular interactions based on the molecular mechanisms of polymeric fouling. The cleaning efficiency and foulant-foulant intermolecular interactions indicated that the destruction of the hydrogen-bonded network, egg-box shaped gel network, and interpenetrating polymer network using sodium hypochlorite (NaClO), ethylenediaminetetraacetic acid (EDTA) and dodecyl trimethyl ammonium chloride (DTAC) solutions, respectively, led to significant flux recovery. The synergistic relationships between the two types of cleaning reagents were different in the mixed solutions and sequential procedures. In addition, oil emulsions facilitated the removal of APAM and slowed the flux loss. Finally, the flux recoveries and operational aspects in the pilot-scale UF experiments indicated that integration of the tested chemical cleaning procedures can efficiently remove membrane foulants and significantly restore membrane flux during polymer-flooding wastewater treatment of UF processes. These results are promising for controlling membrane fouling due to polymeric foulants.
语种	英语
WOS记录号	WOS:000413270200040
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/28940]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Liu, GC 2.Li, L 3.Qiu, LP 4.Yu, SL 5.Liu, P 6.Zhu, YB 7.Hu, J 8.Liu, ZY 9.Zhao, DS 10.Yang, HJ
推荐引用方式 GB/T 7714	Liu, GC,Li, L,Qiu, LP,et al. Chemical cleaning of ultrafiltration membranes for polymer-flooding wastewater treatment: Efficiency and molecular mechanisms[J]. JOURNAL OF MEMBRANE SCIENCE,2018,545:348-357.
APA	Liu, GC.,Li, L.,Qiu, LP.,Yu, SL.,Liu, P.,...&Yang, HJ.(2018).Chemical cleaning of ultrafiltration membranes for polymer-flooding wastewater treatment: Efficiency and molecular mechanisms.JOURNAL OF MEMBRANE SCIENCE,545,348-357.
MLA	Liu, GC,et al."Chemical cleaning of ultrafiltration membranes for polymer-flooding wastewater treatment: Efficiency and molecular mechanisms".JOURNAL OF MEMBRANE SCIENCE 545(2018):348-357.