Removal of Cr(VI) by solvent impregnated resins (SIR) containing aliquat 336

Remediation techniques applied for aqueous system contaminated by toxic Chromium and Nickel ion

“…Other ion exchange resin, Ambersep 132 was used to recover chromic acid from synthetic plating solution in four steps (Landaburu-Aguirre et al, 2009) In the first step, ion-exchange resin captures the chromic acid, and in the second step, it is reacted with sodium hydroxide solution and transformed into sodium chromate In the third step, cationic ion-exchange resin was used to again transfer the sodium chromate into chromic acid, and in the final fourth step, the ion-exchange resin reacts with hydrochloric acid (HCL) to regenerate it again This fourth step is shown to be effective and also accomplished to provide continuous chromic acid. Solventimpregnated resin (SIR) with aliquot 336 is prepared by (Kabay) (Kabay, Arda, Saha, & Streat, 2003) and batch adsorption studies will be done. Batch adsorption studies show that solvent-impregnated resins comprising of Aliquat 336 can be effectively and efficiently used for the treatment of hexavalent chromium from an aqueous solutions.…”

Investigations of Chromium(III) and (VI) Ions Sorption οn SIR by using Photoacoustic and DRS Methods

“…Aliquat 336 is a well known agent used for impregnation of polymeric sorbents for sorption of chromium(VI) ions [1,2]. Literature describes only a liquid phase during sorption of chromium(VI) ions, without investigation of solid phase and effects inside it.…”

ELECTRO-DEIONIZATION OF Cr (VI)-CONTAINING SOLUTION. PART I: CHROMIUM TRANSPORT THROUGH GRANULATED INORGANIC ION-EXCHANGER

“…Moreover, they are characterized by a high ion-exchange capacity and their selectivity for toxic anions (Wu et al, 2000;Kabengi et al, 2006;Foster et al, 2003;Geelhoed et al, 2002), like organic sorption materials of core-shell type (Kabay et al, 2003(Kabay et al, , 2005Saha et al, 2004). It should be also noted that inorganic ion-exchanger materials are relatively cheap and can be obtained and modified rather easily.…”