Simultaneous electrosorptive removal of chromium(VI) and fluoride ions by capacitive deionization (CDI): Multicomponent isotherm modeling and kinetic study

Add time:08/16/2019    Source:sciencedirect.com

The aim of present study is simultaneous and individual removal of chromium (VI) (Cr(VI)) and fluoride (F) ions with activated carbon (AC) electrode by capacitive deionization (CDI). Capacitive deionization is recently developing and worldwide attracted technique due to less energy consumption and eco-friendly in use. AC electrode was fabricated and further it characterized by SEM, EDS, and cyclic voltammetry. The maximum electrosorptive removal of Cr(VI) and F were found to 97.1% and 94.20% for 10 mg/L binary feed at optimized flow rate 16 mL/min and 1.2 V. Effective regeneration electrode was observed after electrosoprtion of Cr(VI) and F. In mono component modeling Redlich Peterson model and Freundlich isotherm model were found best agreement with experimental results of Cr(VI) and F electrosorption. Non Modified R–P model and Extended Freundlich model among six applied multicomponent isotherm models found to good correlation with the experimental data for both Cr(VI) and F electrosorption. Pseudo first order kinetic model found good agreement experimental data for both Cr(VI) and F electrosorption. Thus CDI process could be used for simultaneous electrosorptive removal of low concentrated Cr(VI) and F binary feed system.

We also recommend Trading Suppliers and Manufacturers of CHROMIUM (IC) FLUORIDE (cas 16671-27-5). Pls Click Website Link as below: cas 16671-27-5 suppliers

Prev:Nucleation and growth mechanisms of trivalent chromium conversion coatings on 2024-T3 aluminium alloy
Next:Short-term and long-term exposure to hexavalent chromium alters 53BP1 via H3K18ac and H3K27ac)