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Removal of the Selected Pesticides from a Water Solution by Applying Hollow Fiber Liquid-Liquid Membrane Extraction
dc.creator | Đorđević, Jelena S. | |
dc.creator | Vladisavljević, Goran T. | |
dc.creator | Trtić-Petrović, Tatjana M. | |
dc.date.accessioned | 2018-03-02T00:03:33Z | |
dc.date.available | 2018-03-02T00:03:33Z | |
dc.date.issued | 2014 | |
dc.identifier.issn | 0888-5885 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/5934 | |
dc.description.abstract | A supported liquid membrane extraction of different pesticides (acetamiprid, dimethoate, imidacloprid, linuron, and tebufenozide) from an aqueous solution containing 20 mg dm(-3) of each pesticide by 5% TOPO (tri-n-octylphosphine oxide) in DHE (di-n-hexyl ether) has been investigated in a hollow fiber contactor having an aqueous feed/organic interfacial area of 15.4 cm(2). In a single-pass operation, the maximum removal efficiency of 95% was achieved for the most nonpolar (log P = 4.38) pesticide tebufenozide at the feed flow rate of 0.5 cm(3) min(-1). The diffusion through the boundary layer of the feed stream was a rate-controlling step in the extraction of nonpolar pesticides (linuron and tebufenozide) with a mass-transfer coefficient in the feed stream being proportional to the feed flow rate raised to the power of 0.51-0.57. The maximum overall mass-transfer coefficient based on the feed phase of K-F = 0.18 cm min(-1) was obtained for tebufenozide at the feed flow rate of 1.8 cm(3) min(-1). The organic phase entrapped in the membrane pores offered a major resistance to the mass transfer of polar pesticides (log P LT 1) and accounted for 85% of the overall mass-transfer resistance for imidacloprid at 1.8 cm(3) min(-1). The pesticides removed from the feed solution were almost completely accumulated in the organic phase but were recovered from the membrane pores to a large extent (50-90%) by rinsing the membrane with methanol after extraction. | en |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45006/RS// | |
dc.rights | restrictedAccess | en |
dc.source | Industrial and Engineering Chemistry Research | en |
dc.title | Removal of the Selected Pesticides from a Water Solution by Applying Hollow Fiber Liquid-Liquid Membrane Extraction | en |
dc.type | article | en |
dcterms.abstract | Тртић-Петровић Татјана; Владисављевић Горан Т.; Ђорђевић Јелена С.; | |
dc.citation.volume | 53 | |
dc.citation.issue | 12 | |
dc.citation.spage | 4861 | |
dc.citation.epage | 4870 | |
dc.identifier.wos | 000333551200037 | |
dc.identifier.doi | 10.1021/ie404210k | |
dc.citation.rank | M21 | |
dc.identifier.scopus | 2-s2.0-84897104523 |
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