Enhanced removal of hexavalent chromium from aqueous solution by functional polymer-wrapped gamma-alumina composite adsorbent

2021 ◽  
pp. 101954
Author(s):  
Wei Zhang ◽  
Anlin Long ◽  
Ji Ou ◽  
Xin Zeng ◽  
Jing Wang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Hexavalent Chromium ◽  
Gamma Alumina ◽  
Composite Adsorbent ◽  
Functional Polymer ◽  
Alumina Composite

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.

Biosorption of hexavalent chromium from aqueous solution using chemically modifiedSpirulina platensisalgal biomass: an ecofriendly approach

2015 ◽  
Vol 57 (18) ◽  
pp. 8504-8513 ◽  
Author(s):  
Shubha M. Hegde ◽  
R.L. Babu ◽  
E. Vijayalakshmi ◽  
Rajeshwari H. Patil ◽  
M. Naveen Kumar ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Hexavalent Chromium

Biosorption of hexavalent chromium from aqueous solution onto pomegranate seeds: kinetic modeling studies

2017 ◽  
Vol 14 (2) ◽  
pp. 331-340 ◽  
Author(s):  
M. T. Ghaneian ◽  
A. Bhatnagar ◽  
M. H. Ehrampoush ◽  
M. Amrollahi ◽  
B. Jamshidi ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Hexavalent Chromium ◽  
Kinetic Modeling ◽  
Modeling Studies ◽  
Pomegranate Seeds
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