Removal of Carcinogenic Hexavalent Chromium by Reduction with Iron in Presence of Accelerator Non Toxic Organic Compounds (Chalcone)
Journal Title: JOURNAL OF ADVANCES IN CHEMISTRY - Year 2015, Vol 11, Issue 4
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.
Authors and Affiliations
Hanaa H. Abdel Rahman, Amira H. E. Moustafa, Mohamed A. Z. Mostafa, ElsaiedM. Abdel Wahed
Keywords
Related Articles
- EP ID EP652853
- DOI 10.24297/jac.v11i4.2205
- Views 127
- Downloads 0
A Fuzzy Logic based Privacy Preservation Clustering method for achieving K- Anonymity using EMD in dLink Model
Privacy preservation is the data mining technique which is to be applied on the databases without violating the privacy of individuals. The sensitive attribute can be selected from the numerical data and it can be modifi...
Exploring Quantitative Structure-Activity Relationships (QSARs) of Non-Tri cyclic Cyclooxygenase-2 (COX-2) Inhibitors by MLR and PC-ANN
Quantitative structure–activity relationship study using principal component artificial neural network (PC-ANN) methodology was conducted to predict the inhibitory activities expressed as pIC50 of 73 non-tri cyclic cyc...
SYNTHESIS OF ACTIVATED CARBONS FROM PUTRESCIBLE SOLID WASTE FOR TREATING TEXTILE DYE EFFLUENT
In the present study an attempt has been made to compare the adsorption efficiency of activated carbons (PVW and PFW) prepared from putrescible solid waste. Methylene blue dye (MB) was selected as the model compound. Act...
Synthesis and Antimicrobial Evaluation of Some New Benzoxazinone and Quinazolinone Derivatives
Ring opening reactions of benzoxazinone (2) with nitrogen and oxygen nucleophiles gave the corresponding benzamides (3)&(4) and benzoates (5).Quinazolinone derivatives (6) and (7) were obtained upon treatment of (2)...
Effect the Temperature on Structure and Optical Properties for ZnS nanostructure Thin Film
ZnS nanocrystalline thin films by different temperature of reaction were prepared by chemical bath deposition using thiourea and zinc acetate as S2– and Zn2+ source. The optical absorption studies in the wavelength ran...