Iron(III) Catalyzed Photochemical Reduction of Chromium(VI) by Oxalate and Citrate in Aqueous Solutions

1997 ◽  
Vol 31 (1) ◽  
pp. 160-170 ◽  
Author(s):  
Stephan J. Hug ◽  
Hans-Ulrich Laubscher ◽  
Bruce R. James
Keyword(s):  
Aqueous Solutions ◽  
Photochemical Reduction ◽  
Chromium Vi

scholarly journals Amberlite IRC-718 ion chelating resin extraction of hazardous metal Cr (VI) from aqueous solutions: equilibrium and theoretical modeling

2021 ◽  
Author(s):  
Abdelhamid Addala ◽  
Moussa Boudiaf ◽  
Maria Elektorowicz ◽  
Embarek Bentouhami ◽  
Yacine Bengeurba
Keyword(s):  
Ion Exchange ◽  
Aqueous Solutions ◽  
Exchange Process ◽  
Ion Exchange Resin ◽  
Exchange Capacity ◽  
Chelating Resin ◽  
Exchange Potential ◽  
Chromium Vi ◽  
Ion Exchange Process ◽  
Hazardous Metal

Abstract Under varied conditions, the IRC 718 ion-exchange resin is used to extract chromium (VI) ions from aqueous solutions. On chromium (VI) removal effectiveness, the effects of adsorption dosage, contact time, beginning metal concentration, and pH were examined. The batch ion exchange process reached equilibrium after around 90 minutes of interaction. With an initial chromium (VI) concentration of 0.5 mg/dm3, the pH-dependent ion-exchange mechanism revealed maximal removal in the pH 2.0–10 range . The adsorption mechanism occurs between Cr(VI) determined as the electron acceptor, and IRC 718 determined as the electron donor. The equilibrium ion-exchange potential and ion transfer quantities for Amberlite IRC 718 were calculated using the Langmuir adsorption isotherm model. The overall ion exchange capacity of the resin was determined to be 187.72 mg of chromium (VI)/g of resin at an ideal pH of 6.0.

Chromium VI and cadmium II removal from aqueous solutions by olive stones

2010 ◽  
Vol 16 (1-3) ◽  
pp. 393-401 ◽  
Author(s):  
K. Rouibah ◽  
A.-H. Meniai ◽  
L. Deffous ◽  
M. Bencheikh Lehocine
Keyword(s):  
Aqueous Solutions ◽  
Chromium Vi ◽  
Olive Stones

scholarly journals Biosorption of Chromium (VI) from Aqueous Solutions onto Fungal Biomass

2004 ◽  
Vol 2 (1-2) ◽  
pp. 1-7 ◽  
Author(s):  
Ismael Acosta R. ◽  
Xöchitl Rodríguez ◽  
Conrado Gutiérrez ◽  
Ma. de Guadalupe Moctezuma
Keyword(s):  
Aqueous Solutions ◽  
Fungal Biomass ◽  
Chromium Vi

Experimental analysis, modeling and optimization of chromium (VI) removal from aqueous solutions by polymer-enhanced ultrafiltration

2014 ◽  
Vol 456 ◽  
pp. 139-154 ◽  
Author(s):  
S. Chakraborty ◽  
J. Dasgupta ◽  
U. Farooq ◽  
J. Sikder ◽  
E. Drioli ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Experimental Analysis ◽  
Modeling And Optimization ◽  
Chromium Vi

Carbon-coated montmorillonite nanocomposite for the removal of chromium(VI) from aqueous solutions

2019 ◽  
Vol 368 ◽  
pp. 541-549 ◽  
Author(s):  
Jing Wei ◽  
Chen Tu ◽  
Guodong Yuan ◽  
Dongxue Bi ◽  
Liang Xiao ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Chromium Vi ◽  
Carbon Coated
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