Selective transport of metal ions across polymer inclusion membranes (PIMs) containing calix[4]resorcinarenes

Benosmane, Nadjib; Hamdi, Safouane; Hamdi, Maâmar; Boutemeur, Baya

doi:10.1016/j.seppur.2008.10.039

Cited by 48 publications

(28 citation statements)

References 32 publications

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“…acyclic polyethers, have been widely used as ion carriers in transport across various supported liquid membranes technologies for metal ions selective removal from different aqueous solutions [124] . The transport selective orders for the PIMs with calyx [4] resorcinarenes derivatives was found to be Pb(II)>Cd(II)>Zn(II) [125] .…”

Section: Some Applicationsmentioning

confidence: 96%

Supported liquid membranes technologies in metals removal from liquid effluents

Agreda¹,

García‐Díaz²,

López³

et al. 2011

REVMETAL

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The generation of liquid effluents containing organic and inorganic residues from industries present a potential hazardousness for environment and human health, being mandatory the elimination of these pollutants from the respective solutions containing them. In order to achieve this goal, several techniques are being used and among them, supported liquid membranes technologies are showing their potential for their application in the removal of metals contained in liquid effluents. Supported liquid membranes are a combination between conventional polymeric membranes and solvent extraction. Several configurations are used: flat-sheet supported liquid membranes, spiral wounds and hollow fiber modules. In order to improve their effectiveness, smart operations have been developed: non-dispersive solvent extraction, non-dispersive solvent extraction with strip phase dispersion and hollow fiber renewal liquid membrane. This paper overviewed some of these supported liquid membranes technologies and their applications to the treatment of metal-bearing liquid effluents. KeywordsSupported liquid membranes; Metals; Extractants; Ionic liquids; liquid effluents; Environment. Tecnologías de membranas líquidas soportadas en la eliminación de metales de efluentes líquidos ResumenLa generación, por parte de las industrias, de efluentes líquidos conteniendo sustancias orgánicas e inorgánicas, es un peligro potencial tanto para los humanos como para el medio ambiente, siendo necesaria la eliminación de estos elementos tóxicos de las disoluciones que los contienen. Para conseguir este fin, se están aplicando diversas técni-cas y entre ellas las tecnologías de membranas líquidas soportadas, están demostrando sus aptitudes para la eliminación de metales contenidos en efluentes líquidos. Las membranas líquidas soportadas, resultan de la unión de las membranas poliméricas y de la tecnología de extracción líquido-líquido. Este tipo de membranas se pueden utilizar en diversas configuraciones: plana, módulo en fibra hueca y módulo en espiral y para aumentar su efectividad se están desarrollando las llamadas operaciones avanzadas: extracción no dispersiva, extracción no dispersiva con dispersión de la fase de reextracción y empleo del módulo de fibra hueca, con renovación de la membrana líquida. En este trabajo se revisan estas operaciones de membranas líquidas soportadas y algunas de las aplicaciones de las mismas, en el tratamiento de efluentes líquidos conteniendo metales. Palabras claveMembranas líquidas soportadas; Metales; Agentes de extracción; Líquidos iónicos; Efluentes líquidos; Medio ambiente.

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Section: Some Applicationsmentioning

confidence: 96%

Supported liquid membranes technologies in metals removal from liquid effluents

Agreda¹,

García‐Díaz²,

López³

et al. 2011

REVMETAL

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“…After this period, the removal of phenol versus time curves are smooth and continue leading to saturation. The higher removal rate at initial period can be attributed to the increase of a number of vacant sites on the carrier in the PIM (Benosmane et al 2009). The quantity of phenol eliminated after 6 days of transport (95%) was higher than 5 days (73%) (Benosmane et al 2016).…”

Section: Effect Of Contact Timementioning

confidence: 99%

Removal of phenol from aqueous solution using polymer inclusion membrane based on mixture of CTA and CA

et al. 2018

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Nowadays, there are increasingly stringent regulations requiring more and more treatment of industrial effluents to generate product waters which could be easily reused or disposed of to the environment without any harmful effects. In the present work, the removal of phenol from aqueous solution across polymer inclusion membrane (PIM), based on mixture of cellulose triacetate and cellulose acetate as support (75/25%), calix[4]resorcinarene derivative as a carrier and 2-nitrophenyl octyl ether (2-NPOE) as plasticizer was investigated. The experimental part of this investigation involved the influence of carrier nature, plasticizer concentration, pH phases, and phenol initial concentration on the removal efficiency of phenol from synthetic wastewater. A PIM containing 0.1 g (of mixture polymer), (0.15 g/g mixture of polymer) of carrier and (0.03 ml/g mixture of polymer) of 2-NPOE provided the highest percentage of phenol removal efficiency over a 6-day transport; the removal was found to be about 95%, indeed the removal was found to be highly dependent of pH phases. The feed solution in these transport experiments was at pH 2, while the stripping solution contained 0.20 M NaOH. This study claims that the PIM with a mixture of cellulose derivatives can be used effectively to remove phenols from wastewaters.

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“…These membranes owe their origin to ion-selective electrode (ISE). Therefore, the majority of publications concerning the PIM is connected with the transport of metal ions such as zinc (12)(13)(14), chromium(VI) (15,16), copper (17,18), gold (19), lead (14,20,21), and many others (22)(23)(24)(25). In these publications it was shown that these membranes are suitable for releasing of various types of metal cations, preserving the high degree of selectivity.…”

Section: Please Scroll Down For Articlementioning

confidence: 99%

Influence of Alkyl Chain Length in 1-Alkylimidazol on the Citric Acid Transport Rate across Polymer Inclusion Membrane

Gajewski

Bogacki

2012

Separation Science and Technology

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Research, about citric acid transport, through the polymer inclusion membranes, have been carried out. Two different plasticizers -ONPOE and TBP and a series of carriers of tri-octylamine and 1-alkylimidazoles with carbons chain length of 10, 11, 12, 14, and 16 atoms were used. It was found out that for 1-alkylimidazoles values of the permeability coefficients obtained for TBP as plasticizer change in the range of 8.81 Ã 10 À7 m/s to 1.92 Ã 10 À6 m/s. When ONPOE was used as the plasticizer, the values change in the range of 1.43 Ã 10 À9 m/s to 2.24 Ã 10 À8 m/s. The value of the permeability coefficient for the membrane with TBP equals 3.49 Ã 10 À7 m/s and is comparable with the value obtained for the TOA with this plasticizer, which equals 4.77 Ã 10 À7 m/s TBP, therefore, it is able to simultaneously act as a plasticizer and carrier in membrane. Tested membranes are characterized by a high durability. The repeated 5-times, 24-hours cycles of research did not show any decrease in transport capacity of citric acid.

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Selective transport of metal ions across polymer inclusion membranes (PIMs) containing calix[4]resorcinarenes

Cited by 48 publications

References 32 publications

Supported liquid membranes technologies in metals removal from liquid effluents

Supported liquid membranes technologies in metals removal from liquid effluents

Removal of phenol from aqueous solution using polymer inclusion membrane based on mixture of CTA and CA

Influence of Alkyl Chain Length in 1-Alkylimidazol on the Citric Acid Transport Rate across Polymer Inclusion Membrane

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