Linear and Nonlinear Isotherm Models and Error Analysis for the Sorption of Kresoxim-Methyl in Agricultural Soils of India

Khandelwal, Ashish; Narayanan, Neethu; Varghese, Eldho; Gupta, Suman

doi:10.1007/s00128-020-02803-2

Cited by 39 publications

(20 citation statements)

References 28 publications

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“…Though non-linear approach to error assessment is complex and sophisticated, it restrains errors which would have occurred through linearization of the nonlinear error [30]. The fit of the selected isotherms to the experimental adsorption data were evaluated through optimization of the selected error functions.…”

Section: Nonlinear Error Functions Analysismentioning

confidence: 99%

Adsorption Isotherm, Kinetic and Thermodynamic Modelling of <i>Bacillus subtilis</i> ATCC13952 Mediated Adsorption of Arsenic in Groundwaters of Selected Gold Mining Communities in the Wassa West Municipality of the Western Region of Ghana

Sosa-Montes¹,

Dartey²,

Sarpong³

et al. 2021

AJAC

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This study investigated Bacillus subtilis ATCC13952 as an adsorbent for arsenic in groundwater. Batch experiments were used to determine the effect of contact time, adsorbent dose, arsenic (III) concentration, pH, and temperature on the process. The percentage of arsenic (III) removed was high at a contact time of four days, 3.0 mL of Bacillus subtilis ATCC13952, pH 8 and temperature of 35˚C. The kinetics of the process showed the Elovich kinetics model as the best fit for the process. This indicates that arsenic removal was by chemisorption. The analysis of the nonlinear equilibrium isotherms and the error functions showed the Langmuir isotherm as best fit for the process. Mechanistic study of the process indicated bulk diffusion to be the ratedetermining step. Thermodynamically, the process was favourable, spontaneous and feasible. When the community water samples were treated with the Bacillus subtilis ATCC13952 at the optimum contact time, adsorbent dose, pH and temperature, 99.96% -99.97% of arsenic was removed across all sampling points within the studied communities. Hence, the results show that How to cite this paper:

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Section: Nonlinear Error Functions Analysismentioning

confidence: 99%

Adsorption Isotherm, Kinetic and Thermodynamic Modelling of <i>Bacillus subtilis</i> ATCC13952 Mediated Adsorption of Arsenic in Groundwaters of Selected Gold Mining Communities in the Wassa West Municipality of the Western Region of Ghana

Sosa-Montes¹,

Dartey²,

Sarpong³

et al. 2021

AJAC

View full text Add to dashboard Cite

show abstract

“…The error values show the variation between the predicted and the experimental data. The lower error values were obtained with nonlinear models compered to linear models which is indicating that the errors were introduced while linearizing the adsorption data 38 . It was clear that both isotherm models have a higher correlation factor and lower error function values, suggesting that both isotherms are better.…”

Section: Resultsmentioning

confidence: 88%

“…An error function is usually defined to search for the best fit isotherm and kinetic model that satisfies the experimental adsorption data. Five Error function are used to evaluate the models by using the EXCEL FUNCTION and Origin Pro8.5 36–38 . They are residual mean square error (RMSE), chi‐square (χ2), The sum of the squares of the errors (ERRSQ), average relative error (ARE), and hybrid fractional error (HYBRID).…”

Section: Methodsmentioning

confidence: 99%

“…The lower error values were obtained with nonlinear models compered to linear models which is indicating that the errors were introduced while linearizing the adsorption data. 38 It was clear that both isotherm models have a higher correlation factor and lower error function values, suggesting that both isotherms are better. From the both isotherm model, the lower error values were obtained with Langmuir isotherm indicating the adsorption are more incline to Langmuir isotherm.…”

Section: Error Analysismentioning

confidence: 97%

“…Five Error function are used to evaluate the models by using the EXCEL FUNCTION and Origin Pro8.5. [36][37][38] They are residual mean square error (RMSE), chi-square (χ2), The sum of the squares of the errors (ERRSQ), average relative error (ARE), and hybrid fractional error (HYBRID). Equations for different error functions are given below (Equations ( 11)-( 15)):…”

Section: Error Analysismentioning

confidence: 99%

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Agaraldehyde and chitosan (CHI) functional beads as dye adsorbent were prepared under aqueous medium under ambient temperature and used for removing seven dyes from aqueous solutions. The resulting porous CHI‐Aald (R‐Aald‐CHI) bio‐beads were characterized by X‐ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and scanning electron microscope. The dye removal efficiency was studied using seven dyes (amido black [AB], bromophenol blue, crystal violet, bismarck brown, cotton blue, methyl orange, methylene blue), but detail study was done on AB. AB adsorption was followed the Langmuir‐isotherm and pseudo‐second order kinetics. The effects of adsorption parameters were investigated, and maximum AB 1506 mg/g was adsorbed under the optimum conditions. The linear and nonlinear forms of Langmuir and Freundlich isotherms and two kinetic models pseudo‐first‐order and pseudo‐second‐order were studied. The results show that adsorption follow both isotherm model while for kinetics of adsorption follow pseudo‐second‐order. The results of this work showed that R‐Aald‐CHI was encouraging adsorbent to remove dyes from wastewater, especially AB.

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Dhina¹,

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2023

Chem Eng & Technol

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Pistachia lentiscus (LPw) and date palm leaves (PDw) are two biosorbents that are mainly used for the removal of chromium and cobalt from an aqueous solution. These biosorbents were characterized by physicochemical procedures, including Fourier transform infrared spectroscopy, zero charge point, Boehm method, and Brunauer‐Emmett‐Teller (BET) method. Various parameters, such as contact time, biosorbent quantities, diameter of the biosorbent particles, ionic strength, initial pH, and initial concentration of solutions, were optimized. The reactions of PDw+Co, LP+Co, and LPw+Cr exhibited similar isotherm profiles of type L, but indicated isotherm type C in the reaction PDw+Cr profile, according to the BET classification. All reactions mentioned above were described by the Freundlich and Temkin adsorption isotherm models, with R2 greater than 0.97. The kinetics most likely followed the pseudo‐second‐order model which was confirmed by error calculation.

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Linear and Nonlinear Isotherm Models and Error Analysis for the Sorption of Kresoxim-Methyl in Agricultural Soils of India

Cited by 39 publications

References 28 publications

Adsorption Isotherm, Kinetic and Thermodynamic Modelling of <i>Bacillus subtilis</i> ATCC13952 Mediated Adsorption of Arsenic in Groundwaters of Selected Gold Mining Communities in the Wassa West Municipality of the Western Region of Ghana

Adsorption Isotherm, Kinetic and Thermodynamic Modelling of <i>Bacillus subtilis</i> ATCC13952 Mediated Adsorption of Arsenic in Groundwaters of Selected Gold Mining Communities in the Wassa West Municipality of the Western Region of Ghana

Facile preparation of agaraldehyde chitosan‐based composite beads as effectual adsorbent especially towards amido black

Comparison of Two Different Biosorbents for Heavy Metal Removal

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Linear and Nonlinear Isotherm Models and Error Analysis for the Sorption of Kresoxim-Methyl in Agricultural Soils of India

Cited by 39 publications

References 28 publications

Adsorption Isotherm, Kinetic and Thermodynamic Modelling of &lt;i&gt;Bacillus subtilis&lt;/i&gt; ATCC13952 Mediated Adsorption of Arsenic in Groundwaters of Selected Gold Mining Communities in the Wassa West Municipality of the Western Region of Ghana

Adsorption Isotherm, Kinetic and Thermodynamic Modelling of &lt;i&gt;Bacillus subtilis&lt;/i&gt; ATCC13952 Mediated Adsorption of Arsenic in Groundwaters of Selected Gold Mining Communities in the Wassa West Municipality of the Western Region of Ghana

Facile preparation of agaraldehyde chitosan‐based composite beads as effectual adsorbent especially towards amido black

Comparison of Two Different Biosorbents for Heavy Metal Removal

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Product

Resources

About

Adsorption Isotherm, Kinetic and Thermodynamic Modelling of <i>Bacillus subtilis</i> ATCC13952 Mediated Adsorption of Arsenic in Groundwaters of Selected Gold Mining Communities in the Wassa West Municipality of the Western Region of Ghana

Adsorption Isotherm, Kinetic and Thermodynamic Modelling of <i>Bacillus subtilis</i> ATCC13952 Mediated Adsorption of Arsenic in Groundwaters of Selected Gold Mining Communities in the Wassa West Municipality of the Western Region of Ghana