Removal of Carcinogenic Hexavalent Chromium by Reduction with Iron in Presence of Accelerator Non Toxic Organic Compounds (Chalcone)
DOI:
https://doi.org/10.24297/jac.v11i4.2205Keywords:
Hexavalent chromium, Pyrazoloquinoxaline derivatives, Diffusion controlled, Temperature, Quantum calculations.Abstract
The focus of this work is on Cr, which has two predominant oxidation states of the atmosphere: + â€3, which is an essential nutrient in low doses, and +â€6, which is highly toxic and carcinogenic. We found that, the reduction of Cr6+ to Cr3+ was first order reaction and the rate controlling step is the diffusion of (Cr6+) from bulk to iron surface. Toxicity reduction method includes studding of 1-aryl-3-(1-phenylpyrazolo [3,4-b] quinoxalin-3-yl) -2-propenones derivatives or chalcone derivatives concentration, temperatures and rotation speeds effect, which exhibit a strong dependence and supported that the process is diffusion controlled. Thermodynamic parameter ΔG*, ΔH* and ΔS* are given. Mass transfer study of the process was correlated by the equation: Sh = 0.53Sc0.33Re0.38. The order of acceleration was confirmed by quantum calculations.Downloads
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Published
2015-06-16
How to Cite
Rahman, H. H. A., Moustafa, A. H., Mostafa, M. A. Z., & Wahed, E. A. (2015). Removal of Carcinogenic Hexavalent Chromium by Reduction with Iron in Presence of Accelerator Non Toxic Organic Compounds (Chalcone). JOURNAL OF ADVANCES IN CHEMISTRY, 11(4), 3463–3474. https://doi.org/10.24297/jac.v11i4.2205
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