Sulfur dioxide transport through aqueous solutions: Part II. Experimental results and comparison with theory

AIChE Journal ◽  
1980 ◽  
Vol 26 (4) ◽  
pp. 602-610 ◽  
Author(s):  
Daryl L. Roberts ◽  
Sheldon K. Friedlander
Keyword(s):  
Sulfur Dioxide ◽  
Aqueous Solutions ◽  
Experimental Results

scholarly journals Photoreduction of Cr(VI) Ions in Aqueous Solutions by UV/ Photocatalytic Processes

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Chih Ming Ma ◽  
Yung Shuen Shen ◽  
Po Hsiang Lin
Keyword(s):  
Aqueous Solutions ◽  
Reaction Rate ◽  
Removal Rate ◽  
Experimental Results ◽  
Order Kinetic ◽  
Solution Ph ◽  
Relationship Of ◽  
The Relationship ◽  
Photocatalytic Processes ◽  
Order Kinetic Equation

This study discussed the photoreduction of Cr(VI) ions in aqueous solutions by UV/TiO2photocatalytic processes under various operational factors. Experimental results showed that the removal rate of Cr(VI) increased with decreasing solution pH values and with increasing dosages of organic compounds, indicating that the recombination rate of electrons and h+can be retarded in the reaction systems by the addition of the scavenger, thus raising the reaction rate of Cr(VI). The relationship of the chemical reaction rate of Cr(VI), TiO2dosage, and changes of Cr(VI) concentration was expressed by the pseudo-first-order kinetic equation. Comparing the experimental results of two different doping metals in modified TiO2photoreduction systems, the removal rate of Cr(VI) by the Ag/TiO2process is larger, possibly because the electron transferring ability of Ag is superior to that of Cu. However, the photoreduction rates of Cr(VI) by modified UV/TiO2processes are worse than those by a nonmodified commercial UV/TiO2process.

scholarly journals Interaction of Sulfur Dioxide with Aqueous Solutions of Amides

2005 ◽  
Vol 75 (5) ◽  
pp. 727-733 ◽  
Author(s):  
R. E. Khoma ◽  
M. I. Gavrilenko ◽  
V. I. Nikitin
Keyword(s):  
Sulfur Dioxide ◽  
Aqueous Solutions

Sonoluminescence of aqueous solutions of sulfuric acid and sulfur dioxide

2003 ◽  
Vol 52 (9) ◽  
pp. 1966-1968 ◽  
Author(s):  
G. L. Sharipov ◽  
A. M. Abdrakhmanov ◽  
R. Kh. Gainetdinov
Keyword(s):  
Sulfuric Acid ◽  
Sulfur Dioxide ◽  
Aqueous Solutions

Adsorption of Methylene Blue on Modified Bentonite

2013 ◽  
Vol 726-731 ◽  
pp. 2380-2383
Author(s):  
Li Xia Li ◽  
Xin Dong Zhai
Keyword(s):  
Methylene Blue ◽  
Aqueous Solutions ◽  
Adsorption Kinetics ◽  
Freundlich Isotherm ◽  
Batch Process ◽  
Experimental Results ◽  
Order Model ◽  
Modified Bentonite ◽  
Equilibrium Data ◽  
Pseudo Second Order

Modified bentonite was used as adsorbent for the methylene blue adsorption in a batch process. Experimental results show that the adsorption kinetics is well described by pseudo-second-order model and the equilibrium data was better represented by the Freundlich isotherm model. The results revealed that the modified bentonite has the potential to be used as a good adsorbent for the removal of methylene blue from aqueous solutions.

Dissolution of Colemanite in Aqueous Solutions Saturated with Both Sulfur Dioxide (SO2) Gas and Boric Acid

2006 ◽  
Vol 45 (6) ◽  
pp. 1857-1862 ◽  
Author(s):  
Abdusselam Kurtbaş ◽  
M. Muhtar Kocakerim ◽  
Özkan Küçük ◽  
Ahmet Yartaşı
Keyword(s):  
Sulfur Dioxide ◽  
Aqueous Solutions ◽  
Boric Acid ◽  
So2 Gas

Chemistry of rhenium as an analogue of technetium: Experimental studies of the dissolution of rhenium oxides in aqueous solutions

2003 ◽  
Vol 91 (4) ◽  
Author(s):  
E. Kim ◽  
J. Boulègue
Keyword(s):  
Aqueous Solutions ◽  
Thermodynamic Data ◽  
Experimental Studies ◽  
Experimental Results ◽  
Radioactive Element ◽  
Oxidation States ◽  
Dissolution Behavior ◽  
High Concentration ◽  
Very High ◽  
Chemical Analogue

SummaryThe migration of fissiogenic Tc into the environment can be predicted by studying the dissolution behavior of Re, a chemical analogue of Tc, avoiding the use of a radioactive element at high concentration. We developed a series of experimental studies of the solubility of Re oxides under various oxidation states (+VII, +IV, and +III), in oxidizing and anoxic media, so as to verify the validity of the available thermodynamic data concerning Re. The experimental results confirm that the predictable solubility of Re, under the conditions found in radioactive wastes storage, is very high when in the form of {ReO

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