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Designing high-caliber nonwoven filter mats for coalescence filtration of oil/water emulsions
Hu, Dan1,2,3; Li, Xiaoyu1,2; Li, Lei1,2,3; Yang, Chuanfang1,2
2015-07-27
Source PublicationSEPARATION AND PURIFICATION TECHNOLOGY
ISSN1383-5866
Volume149Issue:JULPages:65-73
Abstract

Oily wastewater is a major problem in industries that can cause severe environmental pollution without proper treatment. In this paper, an easily fabricated, robust and durable nonwoven fibrous filter mat was prepared for coalescence filtration of four kinds of oil-in-water emulsions, namely hexadecane/water, octane/water, soybean oil/water and engine oil/water. An aromatic thermoplastic polyurethane resin (TPU) was selected to bind the fibers together for structure integrity of the mat. Special roughening treatment to the mat was conducted to deliver the required wettability for effective coalescence separation of these emulsions. The filter mat thus prepared reached a tensile strength of 2.99 MPa, 20 times stronger than that of the pristine mat. The mat surface was made both hydrophilic and superoleophilic, allowing it to have separation efficiency as high as 99.61% in a single pass flow. Moreover, even pre-saturated with oil, the mat remained effective in separation and permitted high flow, proving its high caliber for potential industrial applications. (C) 2015 Elsevier B.V. All rights reserved.

KeywordCoalescence Separation Oil/water Emulsion Filter Mat Treatment Wettability
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.seppur.2015.05.014
Indexed BySCI
Language英语
WOS KeywordOIL-WATER SEPARATION ; BED COALESCER ; FIBER ; MEMBRANE ; REMOVAL ; ADSORPTION ; NANOFIBERS ; MECHANISM ; DROPLETS ; ACID
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000358702700009
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19424
Collection生化工程国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Hu, Dan,Li, Xiaoyu,Li, Lei,et al. Designing high-caliber nonwoven filter mats for coalescence filtration of oil/water emulsions[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2015,149(JUL):65-73.
APA Hu, Dan,Li, Xiaoyu,Li, Lei,&Yang, Chuanfang.(2015).Designing high-caliber nonwoven filter mats for coalescence filtration of oil/water emulsions.SEPARATION AND PURIFICATION TECHNOLOGY,149(JUL),65-73.
MLA Hu, Dan,et al."Designing high-caliber nonwoven filter mats for coalescence filtration of oil/water emulsions".SEPARATION AND PURIFICATION TECHNOLOGY 149.JUL(2015):65-73.
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