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Freundlich Isotherm: An Adsorption Model Complete Framework [PDF]
The absolute majority of modern studies dealing with the interpretation of experimental data on the basis of the Freundlich isotherm ignore the fact that the data obtained for regions of low and moderate adsorbate concentration/pressure can be ...
Michael Vigdorowitsch +3 more
doaj +2 more sources
Multiscale estimation of the Freundlich adsorption isotherm [PDF]
Adsorption plays an important role in water and wastewater treatment. The analysis and design of processes that involve adsorption rely on the availability of isotherms that describe these adsorption processes. Adsorption isotherms are usually estimated empirically from measurements of the adsorption process variables. Unfortunately, these measurements
Nounou, M., Nounou, H.
exaly +2 more sources
Reconsideration of theoretical basis of Freundlich adsorption isotherm equation [PDF]
Abstract I constructed a modified surface complexation model that leads to the Freundlich isotherm approximately. The derivation of the Freundlich isotherm equation is based on the assumption that cations and anions are adsorbed onto the same surface simultaneously.
Osamu Nakahara
exaly +5 more sources
Effect of surface functional group on Freundlich adsorption isotherm
This study was designed to investigate the relationship between Freundlich isotherm coefficient l/n and the molecular properties of activated carbon adsorbent. The surface of the adsorbent was modified using nitric acid to produce different types and amounts of oxidized groups.
Miura Y
exaly +2 more sources
Treated oil shale ash and its capacity to remove Cd and Pb from aqueous solutions [PDF]
Cadmium (Cd) is the most highly toxic heavy metal even at a trace level. In this study, the oil shale ash treated material was used as an adsorbent to remove cadmium and lead (Pb) metals/ions from aqueous solutions.
Omar S. Al-Ayed +4 more
doaj +1 more source
Adsorption Isotherms and Kinetics of Lead and Cadmium Ions: Comparative Studies Using Modified Melon (Citrullus colocynthis) Husk [PDF]
Growth in population has caused a corresponding increase in agricultural production which consequently led to an increase in agricultural wastes or byproducts.
F. J. Ogbozige, M. A. Toko
doaj +1 more source
In this study, we determined the capacity of metal organic framework, which we prepared by the solvothermal mixing of Zn ions and 1,4-benzenedicarboxylic acid (Zn/BDC) moieties to adsorb methyl orange (MO), and amoxicillin (AMX).
S. Ukachuku, D. E. Amaebi, C. I. Dike
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Removal of Cadmium Ions from Simulated Wastewater Using Rice Husk Biosorbent
Biosorption of cadmium ions from simulated wastewater using rice husk was studied with initial concentration of 25 mg/l. Equilibrium isotherm was studied using Langmuir, Freundlich, BET and Timken models. The results show that the Freundlich isotherm is
Shahlaa Esmail Ebrahim +1 more
doaj +1 more source
A one-dimensional numerical model is developed to simulate the nitrogen species in wastewater-applied agricultural field to investigate the effect of various isotherms of ammonium nitrogen and nitrate nitrogen.
M. Berlin, G. Suresh Kumar
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Microcystin-LR is a type of toxin released by the Microcystis aeruginosa cyanobacteria found in water sources used for human consumption. It can cause illness and even death if not completely removed in conventional water treatment. The retention of this
Aline Rafaela de Almeida +4 more
doaj +1 more source

