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High-selectivity membrane absorption process for recovery of ammonia with electrospun-hollow-fiber membrane
Ma, Xiaofeng1,2; Li, Yuping2,3; Ca, Hongbin1,2,3; Duan, Feng2; Su, Chunlei2,3; Lu, Chun2,3; Chang, Junjun2,3; Ding, He2
2019-06-01
Source PublicationSEPARATION AND PURIFICATION TECHNOLOGY
ISSN1383-5866
Volume216Pages:136-146
AbstractExcessive 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.
KeywordElectrospinning Ammonia removal Membrane absorption Mass transfer coefficient Selectivity
DOI10.1016/j.seppur.2019.01.025
Language英语
WOS KeywordWASTE-WATER STREAMS ; MASS-TRANSFER ; NANOFIBER MEMBRANES ; NITROGEN REMOVAL ; FABRICATION ; NITRIFICATION ; DESALINATION ; PERFORMANCE ; STRENGTH ; PROGRESS
Funding ProjectNatural Science Foundation of China[21377130] ; Natural Science Foundation of China[51425405]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNatural Science Foundation of China
WOS IDWOS:000459838700016
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28185
Collection中国科学院过程工程研究所
Corresponding AuthorLi, Yuping
Affiliation1.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
Recommended Citation
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.
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