Cationic polyelectrolytes. Synthesis, characterization and application in analysis and removal of arsenic.
Loading...
Date
2010
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Universidad de Concepción.
Abstract
Arsenic occurs in a variety of forms and oxidation states and is a very toxic element. The main arsenic species present in natural waters are arsenate (oxidation state V) and arsenite ions (oxidation state III). The efficiency of arsenic extraction depends strongly on the ability to
convert As(III) into more easily extractable As(V) species.
This research proves that it was possible to remove arsenate from aqueous solutions by the liquid-phase polymer-based retention (LPR). The LPR technique using an ultrafiltration membrane enables the separation of ionic species, which are retained by the (R)4N+X functional groups of water-soluble polyelectrolytes. The ions do not pass through the membrane and are separated from the aqueous solution.
Description
Tesis para optar al grado de Doctor en Ciencias de la Ingeniería con mención en Ingeniería Química.
Keywords
Electrocatálisis, Nanocompósitos, Polímeros, Arsénico.