Adsorption of Hexavalent Chromium Ion from Aqueous Solutions on Psyllium Mucilage and Cross-Linked Psyllium Mucilage Beads

2015 ◽  
Vol 1 (3) ◽  
pp. 191-198
Author(s):  
Deepti Goyal ◽  
Anuradha Mishra
Keyword(s):  
Aqueous Solutions ◽  
Hexavalent Chromium ◽  
Chromium Ion

scholarly journals Recyclable functionalized polymer films for the efficient removal of hexavalent chromium from aqueous solutions

RSC Advances ◽  
2019 ◽  
Vol 9 (63) ◽  
pp. 36751-36757 ◽  
Author(s):  
Weikang Liu ◽  
Mei Wang ◽  
Zhigang Wen ◽  
Zhong Li ◽  
Liang Yang ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Composite Film ◽  
Hexavalent Chromium ◽  
Polymer Films ◽  
Reduction Mechanism ◽  
Efficient Removal ◽  
Chromium Ion ◽  
Adsorption Reduction

A PEI-PVA functionalized composite film has been developed to remove hexavalent chromium ion Cr(vi) from water by an adsorption–reduction mechanism.

scholarly journals Hexavalent chromium ion and methyl orange dye uptake via a silk protein sericin–chitosan conjugate

RSC Advances ◽  
2018 ◽  
Vol 8 (48) ◽  
pp. 27027-27036 ◽  
Author(s):  
Swatantra Pratap Singh ◽  
Karthik Rathinam ◽  
Roni Kasher ◽  
Christopher J. Arnusch
Keyword(s):  
Methyl Orange ◽  
Aqueous Solutions ◽  
Hexavalent Chromium ◽  
Waste Product ◽  
Silk Protein ◽  
Dye Uptake ◽  
Silk Industry ◽  
Chromium Ion ◽  
Protein Waste ◽  
Methyl Orange Dye

Sericin, a protein waste product of the silk industry, was crosslinked with chitosan, and a chitosan–sericin conjugate (CS) was prepared, characterized and used to remove hexavalent chromium (Cr(vi)) ions and methyl orange dye from aqueous solutions.

Recovery of Hexavalent Chromium Ion from Methanol with Ion Exchange Resin

2007 ◽  
Vol 40 (5) ◽  
pp. 447-453 ◽  
Author(s):  
Kazuaki Yamagiwa ◽  
Tetsunori Yamashita ◽  
Toshiaki Kamimura ◽  
Tadaaki Shimizu ◽  
Akira Ohkawa
Keyword(s):  
Ion Exchange ◽  
Hexavalent Chromium ◽  
Exchange Resin ◽  
Ion Exchange Resin ◽  
Chromium Ion

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.

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