The Impact of Surfactant-Driven Emulsion Droplet Size on Lead (Pb) Recovery Efficiency in Emulsion Liquid Membrane Systems
N.H. IBRAHIM, S.N. ZAILANI, N.A. ZAINOL, Subash C.B. GOPINATH, M.N.A. UDA, Ahmad Radi WAN YAAKUB, M.N.A. UDA, U. HASHIM
Abstract. The emulsion liquid membrane (ELM) extraction technology offers significant perspectives into the extraction and recovery of lead (Pb) from aqueous solutions. In this study, ELM stability was investigated using ELM components consist of bis(2-ethylhexyl) phosphate (D2EHPA) as an extractant, kerosene as diluent, nitric acid (HNO3) as stripping agent and polysorbate 80 (Tween 80) as surfactant. These components were prepared and formulated at 2000 rpm and 5 minutes emulsification time. The size of emulsion droplet and the effect of surfactant concentration on the breakage/swelling effect for ELM stability and extraction efficiency were studied. The results show that, at 0.5 M D2EHPA, 0.5 M HNO3 and 5 % w/v Tween 80 was enough to perform stable emulsion with 1.5 µm droplet size and the highest extraction efficiency of Pb removal was 96.16 %. ELM approach has significant potential to facilitate extraction process efficiently.
Keywords
Lead, Surfactant, Removal and Recovery Process, Emulsion Liquid Membrane
Published online 2025/06/01, 9 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: N.H. IBRAHIM, S.N. ZAILANI, N.A. ZAINOL, Subash C.B. GOPINATH, M.N.A. UDA, Ahmad Radi WAN YAAKUB, M.N.A. UDA, U. HASHIM, The Impact of Surfactant-Driven Emulsion Droplet Size on Lead (Pb) Recovery Efficiency in Emulsion Liquid Membrane Systems, Materials Research Proceedings, Vol. 56, pp 108-116, 2025
DOI: https://doi.org/10.21741/9781644903636-12
The article was published as article 12 of the book Composite Materials
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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