Abstract
This paper presents the results concerning the first use of activated composite membranes (ACMs) for the facilitated transport of silver ions containing di-(2-ethylhexyl)-dithiophosphoric acid (DTPA) as the carrier. DTPA was immobilized by interfacial polymerization in a dense layer that was deposited in a porous layer, which was prepared on a nonwoven fabric support by phase inversion. The influence of fundamental parameters affecting the transport of silver ion as the carrier concentration in the membrane phase and stripping agent variation of the stripping solution have been studied. In the optimal conditions, the amount of silver transported across the ACMs was greater than 50%, whereas if the content of the carrier is modified, more than the 90% of the initial silver is removed from the feed phase.
Highlights
Separation processes are essential to the chemical, petroleum refining, and materials processing industries
Several researchers have worked intensively on the application of liquid membranes for the recovery or separation of metal ions from aqueous solutions [4]. An example of this is the use of Liquid membranes (LMs) in extraction of contaminants metal ions such as cadmium, chromium, and lead [5, 6]
In the hollow fiber configuration [7], the LMs have been used to extract copper and cobalt from wastewater, and, recently, ionic liquids have been incorporated as carriers liquid membranes for the selective separation of zinc, cadmium, iron, and copper [8]
Summary
Separation processes are essential to the chemical, petroleum refining, and materials processing industries. Several researchers have worked intensively on the application of liquid membranes for the recovery or separation of metal ions from aqueous solutions [4]. An example of this is the use of LM in extraction of contaminants metal ions such as cadmium, chromium, and lead [5, 6]. In the hollow fiber configuration [7], the LMs have been used to extract copper and cobalt from wastewater, and, recently, ionic liquids have been incorporated as carriers liquid membranes for the selective separation of zinc, cadmium, iron, and copper [8]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
