Phenol rejection by cellulose triacetate and thin film composite forward osmosis membranes

doi:10.1016/j.seppur.2017.05.047

	Phenol rejection by cellulose triacetate and thin film composite forward osmosis membranes
	Xiao, Tingting1,2,3 ; Nghiem, Long D.4; Song, Jianfeng 1; Bao, Ruyi3 ; Li, Xuemei 1; He, Tao1,3
	2017-10-02
发表期刊	SEPARATION AND PURIFICATION TECHNOLOGY (IF:8.1[JCR-2023],7.6[5-Year])
ISSN	1383-5866
EISSN	1873-3794
卷号	186 页码:45-54
发表状态	已发表
DOI	10.1016/j.seppur.2017.05.047
摘要	This study aims to elucidate the separation of phenol by reverse osmosis (RO) and forward osmosis (FO) modes and propose strategies to enhance phenol rejection by these two processes. The results show that phenol rejection was strongly influenced by water flux, membrane materials, membrane structure, modes of operation, and feed solution chemistry (i.e. pH). The relationship between phenol rejection and water flux was demonstrated by the irreversible thermodynamic model which could accurately simulate phenol rejection as a function of water flux. At pH 7, phenol rejection by cellulose acetate (CTA) membranes was negligible while the thin film composite (TFC) polyamide (PA) membranes exhibited much higher phenol rejection. Through a systematic static adsorption experiment, results in this study show that phenol adsorption to CTA material was about 20 times higher than that to PA material. Thus, the observed higher phenol rejection by TFC PA compared to CFA membranes was attributed to the significantly higher affinity of phenol toward CTA and the sorption diffusion transport mechanism of phenol through the membrane. In particular, a TFC PA membrane specific for FO operation was prepared in this study. In FO mode, the tailor-made TFC PA membrane showed a slightly higher phenol rejection and a much higher water permeability compared to the commercial membrane. At the same water flux and solution pH, phenol rejection in FO mode was consistently higher than in RO mode. This observation could possibly be attributed to the reverse diffusion of draw solutes in the FO mode which hinders the forward diffusion of phenol through the membrane. A significant increase in phenol rejection was achieved by increasing the feed pH above the dissociation constant of the compound. (C) 2017 Elsevier B.V. All rights reserved.
收录类别	EI ; SCI
语种	英语
资助项目	Key Research Fund[CAS2014 Y424541211]
WOS研究方向	Engineering
WOS类目	Engineering, Chemical
WOS记录号	WOS:000406730700006
出版者	ELSEVIER SCIENCE BV
EI入藏号	20172303728993
EI主题词	Cellulose ; Composite membranes ; Diffusion ; Dissociation ; Membranes ; Phenols ; Thin films
EI分类号	Chemical Apparatus and Plants; Unit Operations; Unit Processes:802 ; Organic Compounds:804.1 ; Cellulose, Lignin and Derivatives:811.3 ; Materials Science:951
WOS关键词	FIBER NANOFILTRATION MEMBRANES ; REVERSE-OSMOSIS ; ACETATE MEMBRANES ; AQUEOUS-SOLUTIONS ; ORGANIC-COMPOUNDS ; WASTE-WATER ; REMOVAL ; SOLUTE ; PERFORMANCE ; RETENTION
原始文献类型	Article
通讯作者	He, Tao
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/2562
专题	物质科学与技术学院物质科学与技术学院_特聘教授组_何涛组物质科学与技术学院_硕士生物质科学与技术学院_本科生
通讯作者	He, Tao
作者单位	1.Chinese Acad Sci, Shanghai Adv Res Inst, Lab Membrane Mat & Separat Technol, Shanghai 201203, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 4.Univ Wollongong, Sch Civil Min & Environm Engn, Strateg Water Infrastruct Lab, Wollongong, NSW 2522, Australia
第一作者单位	物质科学与技术学院
通讯作者单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Xiao, Tingting,Nghiem, Long D.,Song, Jianfeng,et al. Phenol rejection by cellulose triacetate and thin film composite forward osmosis membranes[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2017,186:45-54.
APA	Xiao, Tingting,Nghiem, Long D.,Song, Jianfeng,Bao, Ruyi,Li, Xuemei,&He, Tao.(2017).Phenol rejection by cellulose triacetate and thin film composite forward osmosis membranes.SEPARATION AND PURIFICATION TECHNOLOGY,186,45-54.
MLA	Xiao, Tingting,et al."Phenol rejection by cellulose triacetate and thin film composite forward osmosis membranes".SEPARATION AND PURIFICATION TECHNOLOGY 186(2017):45-54.