RT journal article
T1 A spiral flowing supported liquid membrane based on DEHPA carrier for the separation of lead from seawater.
A1 Ben Omar, Mostapha
A1 Mendiguchía Martínez, Carolina
A1 García Vargas, Manuel
A1 Moreno Aguilar, Carlos
A2 Química Analítica
K1 Spiral supported liquid membrane
K1 Lead
K1 Seawater
K1 Pre-concentration
K1 Extraction
AB This work aims to study the use of a spiral supported liquid membrane (SLM) to extract lead (Pb) from seawater matrix using the di-(2-ethylhexyl) phosphoric acid (DEHPA) dissolved in kerosene as carrier. In this regard, several physical and chemical parameters which could affect Pb extraction (sample pH, sodium acetate buffer, HNO3 concentration in stripping solution, masking agent effect, flow rate, filter porosity, and configuration of the SLM cell) were studied. In this sense, the permeability parameter was selected to probe the system efficiency. The optimal preconcentration factor was found to be of 14.2, after 2 h under the following conditions: sample pH equal to 4.7 buffered until a 0.08 M of sodium acetate, DEPHA concentration fixed at 0.21 M and HNO3 concentration of 0.23 M in stripping solution. Besides, SLM filters were analyzed by electron microscopy after each period of 2 h and several microparticles and other deposits in form of a thin layer were observed in the polymeric support.
SN 1944-3994
YR 2015
FD 2015
LK http://hdl.handle.net/10498/32914
UL http://hdl.handle.net/10498/32914
LA eng
NO “This is an Original Manuscript of an article published by Taylor & Francis in Desalination and Water Treatment on 2015, available at: https://doi.org/10.1080/19443994.2015.1004199”
DS Repositorio Institucional de la Universidad de Cádiz
RD 12-nov-2026