langmuir and freundlich models
Application of Langmuir and Freundlich Models in Phosphate Sorption Studies in Soil of Contrasting Parent Materials in South Eastern Nigeria
... simple Langmuir and Freundlich models revealed that the Isotherm was linear and this indicated different capacities of the soils to sorb ...The models are briefly described thus: ...
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Study of Phosphorus Adsorption and Its Relationship with Soil Properties, Analyzed with Langmuir and Freundlich Models
... The Ethiopian soils, similar to the other agricultural soils of the tropics, are generally low in available P. Several authors have reported independently that 70-75% of some Ethiopian agricultural soils are deficient in ...
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Zinc Adsorption in Relation to Soil Properties, Analysed with Langmuir and Freundlich Models in Soils of Kashmir Valley
... Langmuir adsorption isotherm was fitted to the information where a plot of C/(x/m) versus C gave a straight line with incline 1 / b and a block of 1 / kb. The adsorption maxima (b) esteem went from 41.66 to 76.92 ...
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DVPhuc RSC Advance2019
... Three-parameter models. In addition to the two- parameter models, different three-parameter models have also been widely considered for the description of adsorption ...the Langmuir and ...
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Vol 2, No 12 (2013)
... The study reveals that maize (Zea mays) leaves powder, an agricultural waste available in plenty at low cost is efficient in the removal of cadmium. In batch mode studies adsorption was dependent on pH, adsorbent dose, ...
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Activated Carbon-Limestone-Alginate Beads for the Simultaneous Removal of Color and Turbidity of Kerian River
... spectroscopy. Langmuir and Freundlich models were used for a mathematics description of the adsorption ...from Langmuir model were ...the Freundlich isotherm ...
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Removal of Heavy Metals from Aqueous Solution by Zeolite in Competitive Sorption System
... linear, Langmuir, or Freundlich sorption model [13]. The Freundlich equation is often useful for modeling sorption of metals onto solids with heterogeneous surfaces and has frequently proved superior ...
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Removal of cadmium ions from aqueous solution using chemically modified peanut shell
... both Langmuir and Freundlich models could give a good fit to experimental data at all study ...by Langmuir model were higher than by Freundlich model at all study ...by Langmuir ...
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Equilibrium and Thermodynamic Studies of Cesium Adsorption on Natural Vermiculite and Optimization of Operation Conditions
... mathematical models, of which Langmuir model and Freundlich model are most widely considered as the base for studying adsorption process and they are most commonly used to describe the adsorption ...
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Removal of Arsenic from aqueous solutions using Turbinaria vulgaris sp. as biosorbent
... Biosorption of heavy metals is an effective and cheapest technology for the treatment of industrial wastewaters. The removal capacity of Arsenic from aqueous solutions through biosorption using turbinaria vulgaris sp. ...
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Adsorption of Pb (II), Cu (II), and Zn (II) Ions onto Urtica dioica Leaves (UDL) as a Low Cost Adsorbent: Equilibrium and Thermodynamic Studies
... and 0.824 mg/g. It could be observed from the table 2, that the regression coefficient was low for Cu (II) and Zn (II), and show that Freundlich isotherm was not obeyed, however, n was high an indication that the ...
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Errors in Parameters Estimation Using Linearized Adsorption Isotherms: Sulfadimethoxine Adsorption onto Kaolinite Clay
... of Langmuir equation, linear Freundlich and Temkin isotherm models and their corresponding non-linear ...linear Langmuir equations underestimated the maximum adsorption capacity of the ...
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Removal of Malachite Green Dye from Aqueous Solution by Adsorption Using Modified and Unmodified Local Agriculture Waste
... From this work, it is seen that SZC and SZC-AC could be a good adsorbent for removal the cationic dye from water. The pH of the adsorption system did not present significant effects on the adsorption capacity for values ...
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Modeling of Experimental Adsorption Isotherm Data for Chlorothalonil by Nairobi River Sediment
... approach which provides a framework of deriving numerous forms of adsorption isotherm models.9,10 Potential theory is the third approach and conveys the main idea in the generation of the characteristic curve.10 ...
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Kinetic Modelling of the Biosorption of Methylene Blue onto Wild Melon (Lagenariasphaerica)
... kinetic models and also in Langmuir and freundlich ...diffusion models, Langmuir and freundlich isotherm best described the batch ...
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New, Cheap and Efficient Synthetic Zeolite X Decontaminant Agent from Fly Ash for Heavy Metal Toxicity
... the Freundlich, and Langmuir. The Freundlich equation is an empirical equation based on adsorption on a heterogeneous ...the Freundlich equation exponent that represents the parameter ...
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Mobility of ibuprofen, a persistent active drug, in soils irrigated with reclaimed water
... main models for describing ibuprofen adsorption by soils, and to estimate the mobility of this pol- lutant in four agricultural soils by analysing the results of adsorption and desorption assays and the desorption ...
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The Adsorption Equilibrium Isotherms Freundlich, Langmuir, and Temkin Models for Two Steroidal anti-Inflammatory Drugs (NSAIDs) Betamethasone and Clobetasol on Multi-Walled Carbon Nanotube
... The Langmuir, Freundlich and Temkin isotherms of the adsorption process of SAIDs on CNT are shown in figures 1 to 3 and calculated parameters of these models are shown in Table ...by Langmuir, ...
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Separation of lead (II) ions from aqueous solutions by adsorption on kaoline
... from Langmuir isotherm is actually the equilibrium constant for the adsorption process and hence can be used to determine the Gibbs free energy change of the process as per the equation ...
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Influence of Temperature on Equilibrium, Kinetic and Thermodynamic Parameters of Biosorption of Cr(VI) onto Fish Scales as Suitable Biosorbent
... kinetic models were tested to analyze the mechanism of biosorption and it was found that pseudo-first-order kinetic model agreed very well with the dynamic behavior for the biosorption of Cr(VI) onto fish ...The ...
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