Isotherm Model
Sorption Isotherm Model of Zinc (II) onto Thermally Treated Rice Husk
... In this work, mechanisms of Zn (II) ions sorption were proposed based on equilibrium data obtained. The sorption was better described by Langmuir isotherm compared to Freundlich isotherm which suggests that ...
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Copper Biosorption by Untreated and Citric Acid Modified Senna alata Leaf Biomass in a Batch System: Kinetics, Equilibrium and Thermodynamics Studies
... From Fig. 8 it is evident that the experimental data were better fitted for CAMSA (R 2 = 0.90) than for USA (R 2 = 0.80). Thus, since R 2 < 0.90 for USA, it implies that the experimental data of the biosorbent failed ...
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Removal of Bisphenol A using Antimony Nanoparticle Multi-walled Carbon Nanotubes composite from aqueous solutions
... Freundlich isotherm models were investigated and the results of this stage are shown in Table ...Langmuir isotherm model (0.96) was higher than Freundlich isotherm model ...Langmuir ...
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ADSORPTIVE REMOVAL OF PHENOL BY COAL FLY ASH: EQUILIBRIUM AND THERMODYNAMIC STUDIES
... Equilibrium model analysis indicated the fitness of Langmuir isotherm model to phenol-CFA adsorption system, suggesting the monolayer adsorption of phenol onto coal fly ...
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Adsorption mechanism of low concentration pollutants in water on modified zeolite
... adsorption isotherm shows, to nitrate nitrogen and COD adsorption, modified zeolite was fit with Langmuir isotherm model, and the main type of modified zeolite is chemisorption; to ammonia nitrogen ...
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Nitrate Removal from Groundwater Using Sodium Alginate Doped with Nano-Hydroxyapatite
... kinetic model was able to describe the dynamic behavior of the adsorption process by composite adsorbents used in this ...Langmuir isotherm model is very well fitted to the equilibrium ...
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Defluoridation by Nano-Materials, Building Materials and Other Miscellaneous Materials: A Systematic Review
... Islam et al. (2011) prepared a hybrid thorium phosphate composite with cinnamamide, thorium nitrate and phosphoric acid by co-precipitation method for removal of fluoride from drinking water. Polycinnamamide thorium (IV) ...
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REMOVAL OF METHYLENE BLUE BY ADSORPTION ONTO RETAMA RAETAM PLANT: KINETICS AND EQUILIBRIUM STUDY
... by non linear Freundlich isotherm model. Thermodynamic studies show that adsorption was spontaneous and exothermic. For determining the best-fi t-kinetic adsorption model, the experimental data were ...
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Adsorption Behavior of Waste Leaves of Quercus Leucotrichophora for the Removal of Ni2+ and Cd2+ Ions from Waste Water
... The leaves of Quercus leucotrichophora have been found good adsorbents for the removal of nickel and cadmium from synthetic waste water. The observed optimized conditions like contact time 60 minutes, adsorbent dosage 1 ...
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Use of a Specific Type of Bentonite Clay for the Removal of Reactive Dyes Karim R. Gubashi, Mohammed A. Rashid, Ream Majid
... From this study, it may be concluded that the removal of two reactive dyes by adsorption on bentonite clay has been found to be useful for controlling water pollution; the adsorption of dyes is influenced by pH values, ...
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Adsorption of Zn (II) from aqueous solution by using chitin extraction from crustaceous shell
... Removal of toxic heavy metals from wastewater is an important environmental challenge. In this Study, Zn (II) removal from aqueous solution by chitin extraction from crustaceous shells (shrimp and crab) was investigated. ...
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Method for The Removal of Piumbum(II) Ion from Aqueous Solutions by Corn Cobas A Natural Adsorbent and from The View Point Thermodynamics
... adsorption conditions. The equilibrium adsorption level was determined as a function of solution pH, temperature(T), contact time(tc), initial adsorbate concentration, and adsorbent dosage. Effective removal of metal ...
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Effective Distribution of Injected Emulsified Oil for In-situ Bioremediation of Heterogenous Aquifers
... Langmuir isotherm into a groundwater transport/reaction package in RT3D and used this along with a MODFLOW model to study how changing the design variables affects the distribution of attached oil in the ...
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Synthesis and Characterization of Hierarchical Flower-Like ZnO Particles as Effective Adsorbent and Antibacterial Agent - Volume 8 Number 5 (Oct. 2017) - IJCEA
... Freundlich isotherm models were evaluated for different temperature values and the calculated isotherm model constants were presented in Table ...Langmuir isotherm model was determined ...
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Isotherm and Kinetic Study of Disulfin Blue and Methyle Orange Dyes by Adsorption onto by Titanium Dioxide- NPs loaded onto Activated Carbon : Experimental Design
... adsorption isotherm is characterized by certain constant amounts, which express the surface properties of the adsorbent and so on the function of initial concentration of MO and DSB hues are given in table the ...
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Isotherm, Kinetic and Thermodynamic Studies of Mixed Metal Oxide Nanocomposite as an Efficient Adsorbent for Azo Dye Removal
... Characteristic isotherm equations parameters (qm, KL, KF, RL, 1/n) corresponding to Langmuir and Freundlich models together with R 2 values are summarized in Table ...Langmuir isotherm model with ...
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Removal of hexavalent chromium from aqueous system by low cost adsorbent (AAVNS)
... This AAVNS can be used as an alternative adsorbent for heavy metal ions removal in industrial wastewater due to its efficiency of Chromium ions adsorption in aqueous solution. The adsorption of Cr (VI) onto AAVNS was ...
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Zn(II) Adsorption Study onto Soils of Sarcheshmeh Copper Mine
... each isotherm to describe the adsorption process was identified by the correlation coefficients (R 2 ...(I) isotherm model of the SA and SE samples fitted better than the other isotherm models ...
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Removal of Zn (II) from Aqueous Solution onto Kaolin by Batch Design
... The Algerian kaolin clay was investigated to remove Zn(II) heavy metal ion from aqueous solution. The effect of con- tact time, initial metal ion concentration, pH and temperature was experimentally studied in batch mode ...
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The Synthesis of Nano TiO2 and Its Use for Removal of Lead Ions from Aqueous Solution
... Characterization of crystalline size of the adsorbent was determined by XRD (model STV_MP STOE Company, Germany).For this purpose, Cu radiation (λCu = 1.5405 A) was used and the sample was scanned in a 2θ range of ...
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