Effect of temperature on the .gamma. radiolysis of aqueous solutions

1972 ◽  
Vol 76 (9) ◽  
pp. 1273-1279 ◽  
Author(s):  
I. Balakrishnan ◽  
M. P. Reddy
Keyword(s):  
Aqueous Solutions ◽  
Effect Of Temperature ◽  
Gamma Radiolysis

Flow Behaviors of High Acyl Gellan Aqueous Solutions as Affected by Temperature, and Calcium and Gellan Concentrations

2008 ◽  
Vol 4 (5) ◽  
Author(s):  
Yiqun Huang ◽  
Pawan Singh Takhar ◽  
Juming Tang ◽  
Barry G Swanson
Keyword(s):  
Shear Rate ◽  
Aqueous Solutions ◽  
Apparent Viscosity ◽  
Flow Resistance ◽  
Effect Of Temperature ◽  
Temperature Changes ◽  
Influence Of Temperature ◽  
Rheological Behaviors ◽  
Low Concentrations ◽  
Influence Of Temperature On

Rheological behaviors of high acyl (HA) gellan are not well understood partially because of its relatively late commercialization compared to low acyl gellan. The objective of this study was to investigate the effect of temperature (5-30 °C), calcium (0, 1 and 10 mM) and gellan concentrations (0.0044-0.1000% w/v) on the flow behaviors of high acyl gellan aqueous solutions using rheological tests. Gellan solutions with 0 or 1 mM added Ca++ exhibited shear thinning behavior at gellan concentrations above 0.0125%. The influence of temperature on apparent viscosity (shear rate, 100 s-1) of gellan solutions can be described with an Arrhenius relationship. The apparent viscosity of gellan solution at low concentrations was more sensitive to temperature changes. The addition of Ca++ led to a decrease in flow resistance for a dilute gellan solution (<0.0125%), but an increased resistance for a relatively concentrated gellan solution (>0.0125%).

Gamma radiolysis of alachlor aqueous solutions in the presence of hydrogen peroxide

2010 ◽  
Vol 184 (1-3) ◽  
pp. 308-312 ◽  
Author(s):  
Dongkyu Choi ◽  
O-Mi Lee ◽  
Seungho Yu ◽  
Seung-Woo Jeong
Keyword(s):  
Hydrogen Peroxide ◽  
Aqueous Solutions ◽  
Gamma Radiolysis

scholarly journals A study of adsorption isotherms for the removal of herbicide Atlantis WG from aqueous solutions by using Bentonite clay

2015 ◽  
Vol 12 (1) ◽  
pp. 148-156
Author(s):  
Baghdad Science Journal
Keyword(s):  
Aqueous Solutions ◽  
Adsorption Process ◽  
Equilibrium Concentration ◽  
Bentonite Clay ◽  
Langmuir Model ◽  
Effect Of Temperature ◽  
Isotherm Models ◽  
Sorption Data ◽  
Freundlich Model ◽  
The Subject

The subject of this research involves studying adsorption to removal herbicide Atlantis WG from aqueous solutions by bentonite clay. The equilibrium concentration have been determined spectra photometry by using UV-Vis spectrophotometer. The experimental equilibrium sorption data were analyzed by two widely, Langmuir and Freundlish isotherm models. The Langmuir model gave a better fit than Freundlich model The adsorption amount of (Atlantis WG) increased when the temperature and pH decreased. The thermodynamic parameters like ?G, ?H, and ?S have been calculated from the effect of temperature on adsorption process, is exothermic. The kinetic of adsorption process was studied depending on Lagergren ,Morris ? Weber and Rauschenberg equations.

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