Fixed-bed column study for hexavalent chromium removal and recovery by short-chain polyaniline synthesized on jute fiber

2009 ◽  
Vol 162 (2-3) ◽  
pp. 1086-1098 ◽  
Author(s):  
Potsangbam Albino Kumar ◽  
Saswati Chakraborty
Keyword(s):  
Hexavalent Chromium ◽  
Fixed Bed ◽  
Short Chain ◽  
Jute Fiber ◽  
Chromium Removal ◽  
Fixed Bed Column ◽  
Column Study ◽  
Removal And Recovery

Adsorption of hexavalent chromium from aqueous solution by modified corn stalk: A fixed-bed column study

2012 ◽  
Vol 113 ◽  
pp. 114-120 ◽  
Author(s):  
Suhong Chen ◽  
Qinyan Yue ◽  
Baoyu Gao ◽  
Qian Li ◽  
Xing Xu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Hexavalent Chromium ◽  
Fixed Bed ◽  
Corn Stalk ◽  
Fixed Bed Column ◽  
Column Study

Breakthrough analysis for hexavalent chromium removal from drinking water in a fixed bed column

2009 ◽  
Vol 9 (6) ◽  
pp. 661-670 ◽  
Author(s):  
S. P. Dubey ◽  
K. Gopal
Keyword(s):  
Aqueous Solution ◽  
Hexavalent Chromium ◽  
Fixed Bed ◽  
Entropy Change ◽  
Spectroscopic Technique ◽  
Fixed Bed Column ◽  
Chromium Vi ◽  
Fixed Bed Adsorption ◽  
Optimal Column ◽  
Eucalyptus Bark

The activated carbon of Eucalyptus globulus was tested for their effectiveness in removing hexavalent chromium from aqueous solution using column experiments. Result revealed that adsorption of chromium(VI) on eucalyptus bark carbon was endothermic in nature. Thermodynamic parameters such as the entropy change, enthalpy change and Gibbs free energy change were found to be 1.39 kJ mol−1 K−1, 1.08 kJ mol−1 and −3.85 kJ mol−1, respectively. Different chromium concentrations were used for the fixed bed adsorption studies. The pre- and post-treated adsorbents were characterized using a FTIR spectroscopic technique. It was concluded that Eucalyptus bark carbon column could be used effectively for removal of hexavalent chromium from aqueous solution at optimal column conditions. This study showed that this biological material is potential adsorbent of Cr(VI) from water.

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