scholarly journals Cadmium and Lead Removal from Aqueous Solution by Grape Stalk Wastes: Modeling of a Fixed-Bed Column

2010 ◽  
Vol 55 (9) ◽  
pp. 3548-3554 ◽  
Author(s):  
Nuria Miralles ◽  
César Valderrama ◽  
Ignasi Casas ◽  
María Martínez ◽  
Antonio Florido
Keyword(s):  
Aqueous Solution ◽  
Fixed Bed ◽  
Lead Removal ◽  
Fixed Bed Column ◽  
Cadmium And Lead

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.

Performance of an optimized fixed-bed column packed with an organic biomixture to remove atrazine from aqueous solution

2020 ◽  
pp. 101263
Author(s):  
Marcela Levio-Raiman ◽  
Heidi Schalchli ◽  
Gabriela Briceño ◽  
Cristian Bornhardt ◽  
Gonzalo Tortella ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fixed Bed ◽  
Fixed Bed Column
Sign in / Sign up

Export Citation Format

Share Document