TY - JOUR 
A1 - Baicha, Zakarya
AU - Salar García, María José
AU - Ortiz Martínez, Víctor Manuel
AU - Hernández Fernández, Francisco José
AU - Pérez de los Ríos, Antonia
AU - Maqueda Marín, Diego Pedro
AU - Collado, Juan Antonio
AU - Tomás Alonso, Francisca
AU - El Mahi, Mohammed
T1 - On the selective transport of nutrients through polymer inclusion membranes based on ionic liquids
Y1 - 2019
SN - 2227-9717
UR - http://hdl.handle.net/10317/9442
AB - In the last few years, the use of ionic liquid-based membranes has gained importance in a wide variety of separation processes due to the unique properties of ionic liquids. The aim of this work is to analyze the transport of nutrients through polymer inclusion membranes based on different concentrations of methyltrioctylammonium chloride, in order to broaden the application range of these kinds of membranes. Calcium chloride (CaCl2) and sodium hydrogen phosphate (Na2HPO4) nutrients were used at the concentration of 1 g center dot L-1 in the feeding phase. The evolution of the concentration in the receiving phase over time (168 h) was monitored and the experimental data fitted to a diffusion-solution transport model. The results show very low permeation values for CaCl2. By contrast, in the case of Na2HPO4 the permeation values were higher and increase as the amount of ionic liquid in the membrane also increases. The surface of the membranes was characterized before and after being used in the separation process by scanning electron microscopy coupled to energy dispersive X-Ray spectroscopy (SEM-EDX) and elemental mapping analysis. The SEM-EDX images show that the polymer inclusion membranes studied are stable to aqueous solution contacting phases and therefore, they might be used for the selective transport of nutrients in separation processes.
KW - Ingeniería Hidráulica
KW - Ingeniería Química
KW - Polymer inclusion membranes
KW - Ionic liquids
KW - Nutrients
KW - Liquid membrane stability
KW - Permeation
KW - 2303.31 Química del Agua
LA - eng
PB - MDPI
ER -