Removal of hexavalent chromium from aqueous solutions by D301, D314 and D354 anion-exchange resins

2009 ◽  
Vol 161 (2-3) ◽  
pp. 900-906 ◽  
Author(s):  
Taihong Shi ◽  
Zhuochao Wang ◽  
Yang Liu ◽  
Shiguo Jia ◽  
Du Changming
Keyword(s):  
Aqueous Solutions ◽  
Anion Exchange ◽  
Hexavalent Chromium ◽  
Anion Exchange Resins ◽  
Exchange Resins

scholarly journals Removal of Hexavalent Chromium Ions from Aqueous Solutions by an Anion-Exchange Resin

2008 ◽  
Vol 26 (9) ◽  
pp. 693-703 ◽  
Author(s):  
P. Senthil Kumar ◽  
K. Kirthika ◽  
K. Sathish Kumar
Keyword(s):  
Aqueous Solutions ◽  
Anion Exchange ◽  
Hexavalent Chromium ◽  
Exchange Resin ◽  
Ph Value ◽  
Anion Exchange Resin ◽  
Freundlich Isotherm ◽  
Sorption Process ◽  
Isotherm Models ◽  
Exchange Resins

The removal of hexavalent chromium, Cr(VI), from aqueous solutions under different conditions using an anion-exchange resin (AXR) as an adsorbent was investigated under batch conditions. Such studies indicated that the percentage adsorption decreased with increasing initial Cr(VI) concentration, with the maximum removal of such ions occurred at a pH value of ca. 2.0. Both the Langmuir and Freundlich isotherm models were capable of reproducing the isotherms obtained experimentally. The sorption process was rapid during the first 20 min with equilibrium being attained within 30 min. The process followed first-order kinetics. The results demonstrate that such anion-exchange resins can be used for the efficient removal of Cr(VI) ions from water and wastewater.

Evaluation of polyacrylic anion exchange resins on the removal of Cr(vi) from aqueous solutions

RSC Advances ◽  
2016 ◽  
Vol 6 (7) ◽  
pp. 5233-5239 ◽  
Author(s):  
Ke Xiao ◽  
Guimei Han ◽  
Jianhui Li ◽  
Zhigang Dan ◽  
Fuyuan Xu ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Anion Exchange ◽  
Exchange Capacity ◽  
Resin Matrix ◽  
Anion Exchange Resins ◽  
Exchange Resins

The polyacrylic resin is oxidized by Cr(vi) anions, resulting in the decrease of exchange capacity and degradation of the resin matrix.

Sign in / Sign up

Export Citation Format

Share Document