High-selectivity membrane absorption process for recovery of ammonia with electrospun-hollow-fiber membrane

doi:10.1016/j.seppur.2019.01.025

	High-selectivity membrane absorption process for recovery of ammonia with electrospun-hollow-fiber membrane
	Ma, Xiaofeng 1,2; Li, Yuping 2,3; Ca, Hongbin 1,2,3; Duan, Feng 2; Su, Chunlei 2,3; Lu, Chun 2,3; Chang, Junjun 2,3; Ding, He 2
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2019-06-01
卷号	216 页码:136-146
关键词	Electrospinning Ammonia removal Membrane absorption Mass transfer coefficient Selectivity
ISSN号	1383-5866
DOI	10.1016/j.seppur.2019.01.025
英文摘要	Excessive ammonia nitrogen in wastewater seriously endangers ecological environment, so high-flux and selectivity membrane is urgently needed for ammonia removal using membrane absorption (MA). In this paper, a high-performance electrospun hollow fiber membrane was fabricated and solvent vapor welding treatment was adopted to enhance mechanical strength. The post-treatment membrane showed 103.8% higher in the Young's modulus than the pristine membrane. High mechanical strength, porosity and hydrophobicity of the membrane make it superior in mass transfer and selectivity. The effects of membrane thickness, pH and temperature of feed solution on experimental overall mass transfer coefficient (K-OE) and selectivity coefficient (S-NH3(/)H2O ((g)))were intensively investigated to examine the membrane performance in MA application. The results show K-OE is 1.35 *10(-5) m s(-1) and S-NH3(/)H2O ((g)) is 7.58 when pH is 11, which are higher than that of commercial membrane. Moreover, the selectivity can be improved greatly from 6.91 to 9.74 by increasing the thickness of the hollow fiber membrane from 55 +/- 5 mu m to 115 +/- 5 mu m. The welded electrospun hollow fiber membrane demonstrates great potential for ammonia removal in MA application.
资助项目	Natural Science Foundation of China[21377130] ; Natural Science Foundation of China[51425405]
WOS关键词	WASTE-WATER STREAMS ; MASS-TRANSFER ; NANOFIBER MEMBRANES ; NITROGEN REMOVAL ; FABRICATION ; NITRIFICATION ; DESALINATION ; PERFORMANCE ; STRENGTH ; PROGRESS
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000459838700016
资助机构	Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/28185]
专题	中国科学院过程工程研究所
通讯作者	Li, Yuping
作者单位	1.Tianjin Univ, Natl Engn Res Ctr Distillat Technol, Sch Chem Engn, Tianjin 300072, Peoples R China 2.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Div Environm Technol & Engn, Inst Proc Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Ma, Xiaofeng,Li, Yuping,Ca, Hongbin,et al. High-selectivity membrane absorption process for recovery of ammonia with electrospun-hollow-fiber membrane[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2019,216:136-146.
APA	Ma, Xiaofeng.,Li, Yuping.,Ca, Hongbin.,Duan, Feng.,Su, Chunlei.,...&Ding, He.(2019).High-selectivity membrane absorption process for recovery of ammonia with electrospun-hollow-fiber membrane.SEPARATION AND PURIFICATION TECHNOLOGY,216,136-146.
MLA	Ma, Xiaofeng,et al."High-selectivity membrane absorption process for recovery of ammonia with electrospun-hollow-fiber membrane".SEPARATION AND PURIFICATION TECHNOLOGY 216(2019):136-146.