Pseudo second order kinetic models for safranin onto rice husk: Comparison of linear and non-linear regression analysis

2006 ◽  
Vol 41 (5) ◽  
pp. 1198-1202 ◽  
Author(s):  
K. Vasanth Kumar ◽  
S. Sivanesan
Keyword(s):  
Regression Analysis ◽  
Linear Regression ◽  
Rice Husk ◽  
Kinetic Models ◽  
Linear Regression Analysis ◽  
Second Order ◽  
Order Kinetic ◽  
Non Linear ◽  
Pseudo Second Order

Linear and Non-Linear Regression Analysis of Boron Adsorption Kinetics on New Radiation Grafted Fibrous Adsorbent

2014 ◽  
Vol 625 ◽  
pp. 245-248
Author(s):  
T.M. Ting ◽  
Mohamed Mahmoud Nasef ◽  
Kamaruddin Hashim
Keyword(s):  
Kinetic Model ◽  
Linear Regression ◽  
Linear Method ◽  
Second Order ◽  
Linear Regression Method ◽  
Order Kinetic ◽  
Fast Kinetics ◽  
Non Linear ◽  
Pseudo Second Order ◽  
Boron Adsorption

The kinetic behavior of a new adsorbent prepared by radiation induced grafting of vinyl benzyl chloride (VBC) onto nylon-6 fibers followed by functionalization with N-methyl-D-glucamine was investigated using pseudo second-order kinetic model. The linear method and non-linear regression methods were compared to determine the best fitting for the kinetic model describing the adsorption of boron by the new adsorbent. Four pseudo second-order kinetic linear equations were presented. A type-1 pseudo second-order linear method was found to fit best the experimental data. Non-linear regression method was found to be more appropriate to describe the boron adsorption by the fibrous adsorbent which has also shown fast kinetics.

scholarly journals Investigating the Reaction and Transport Controlled Mechanism for the Sorption of Cr(III) and Mn(II) Ions onto Acid Activated Shale using Non-Linear Error Functions

2019 ◽  
Vol 3 (1) ◽  
pp. 174-185
Author(s):  
I. R. Ilaboya ◽  
O. C. Izinyon
Keyword(s):  
Experimental Data ◽  
Kinetic Model ◽  
Kinetic Models ◽  
Metal Ion ◽  
Second Order ◽  
Batch Adsorption ◽  
Order Kinetic ◽  
Linear Coefficient ◽  
Non Linear ◽  
Pseudo Second Order

Time dependent adsorption study on the sorption of Cr(III) and Mn(II) ions onto acid activated shale was conducted using batch adsorption techniques to investigate the effect of initial metal ion concentration on the process of adsorption. Experimental data obtained were fitted into different kinetic models to analyze the mechanism of adsorption in terms of reaction controlled and transport controlled mechanism. Some of the selected kinetic models include; Pseudo-first order, Pseudo-second order, Elovich, Film diffusion, Parabolic diffusion and Intra-particle diffusion model. From the result, it was observed based on the linear coefficient of determination (r2) that the experimental data fitted well into the various kinetic model tested. Application of non-linear error function such as error sum of square (SSE), root mean square error (RMSE) and residual average (RA) revealed that the rate limiting step for the adsorption of Cr3+ and Mn2+ ions on acid activated shale was chemical attachment (chemisorption) and the reaction mechanism follows the Pseudo-second order kinetic model.

Optimising the Production of Combined Filter/Sorption Composite Materials

2017 ◽  
Vol 44 (9) ◽  
pp. 51-58
Author(s):  
A.V. Genis ◽  
A.V. Kuznetsov ◽  
G.M. Il'yutkina ◽  
L.V. Polyakov
Keyword(s):  
Regression Analysis ◽  
Composite Materials ◽  
Linear Regression ◽  
Protective Clothing ◽  
Linear Regression Analysis ◽  
Physicomechanical Properties ◽  
Single Stage ◽  
Service Properties ◽  
Non Linear ◽  
Bonding Technology

The main relationships governing the production of combined filter/sorption materials by plying-up with the application of adhesive melts have been studied. It has been established that the use of single-stage bonding technology makes it possible to improve the physical and physicomechanical properties of multilayer non-woven mats. The possibility of optimising the plying-up process by using multiple non-linear regression analysis has been demonstrated. Materials with service properties suitable for use in protective clothing have been obtained.

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