Results 231 to 240 of about 339,684 (268)

Adsorption of Basic Violet 16 dye from aqueous solution onto mucilaginous seeds of Salvia sclarea: kinetics and isotherms studies

Desalination and Water Treatment, 2019
The Salvia sclarea seeds (SSS) were used as adsorbent for the removal of Basic Violet 16 (BV 16) dye from aqueous solutions. The structure and surface characteristics of the SSS were investigated by field emission scanning electron microscopy, Fourier ...
Shirin Afshin, Y. Rashtbari, M. Shirmardi, M. Vosoughi, Asghar Hamzehzadeh   +4 more
semanticscholar   +1 more source

THE USE OF THE FREUNDLICH ISOTHERM FOR SOIL PHOSPHATE SORPTION DATA

Journal of Soil Science, 1975
Summary Phosphate sorption data for twenty‐nine soils were found to fit the Freundlich adsorption isotherm better if a measure of native labile P was first added to the sorption data, and this sum plotted against intensity. The exponent from the isotherm thus obtained was closely related to exchangeable A1 (in acid soils) and ...
A. H. FITTER, C. D. SUTTON
openaire   +1 more source

Extension of a Jovanovic–Freundlich isotherm model to multicomponent adsorption on heterogeneous surfaces

Journal of Chromatography A, 1998
A recently proposed Jovanovic-Freundlich isotherm model for single component adsorption without lateral interactions on heterogeneous surfaces is extended to account for lateral interactions and for competitive adsorption. The model is tested using previously reported single component and competitive adsorption data of 2-phenylethanol and 3 ...
I, Quiñones, G, Guiochon
openaire   +2 more sources

Non-linear adsorption in fixed beds: the Freundlich isotherm

Chemical Engineering Science, 1973
Abstract Solutions have been obtained relating the breakthrough curve to bed parameters for the case of adsorption in fixed beds where the adsorption isotherm is of the non-linear Freundlich type and where the overall rate of adsorption is controlled by the rate of mass transfer across the gas-film surrounding each particle.
openaire   +1 more source

Determination of the originally adsorbed soil phosphorus by modified Freundlich isotherm

Communications in Soil Science and Plant Analysis, 1995
Abstract Phosphorus adsorption was studied on four different Hungarian soil samples previously treated with phosphorus. Six different isotherm models were fitted to the P adsorption data. All the models took into account the amount of phosphate originally adsorbed (Q).
L. Tolner, Gy. Füleky
openaire   +1 more source

The History and Use of the Freundlich Adsorption Isotherm

Journal of the Society of Dyers and Colourists, 1973
The history of the log—log plot of adsorption of a gas or solute against the concentration in the external phase, usually known as the Freundlich isotherm, is traced, from its first use by Boedeker in 1859, in studying adsorption of inorganic compounds by soil, and its applicability to dye—fibre systems is described.
openaire   +1 more source

Freundlich, Langmuir, Temkin, DR and Harkins-Jura Isotherm Studies on the Adsorption of CO2 on Various Porous Adsorbents

International journal of Chemical Reactor Engineering, 2018
The objective of the study was to prepare low-cost activated carbon from cornelian cherry stones (Cornus mas L.) and compare its adsorption capacities for CO2 with that of commercial multiwalled carbon nanotubes, activated carbon, MCM-41 and four ...
F. Erdoğan
semanticscholar   +1 more source

Pressure swing adsorption for a system with a Langmuir—Freundlich isotherm

Chemical Engineering Science, 1990
Abstract Expressions for the enrichment factor, the critical recycle ratio, and the extent of recovery are discussed for a pressure swing adsorption system with a Langmuir—Freundlich isotherm. The enrichment factor is defined as the ratio of the mole fraction of the adsorbate gas in the low-pressure product stream to that in the high-pressure feed ...
X. Lu, R. Madey, D. Rothstein, M. Jaroniec, J.-C. Huang   +4 more
openaire   +1 more source

Lead, copper and zinc biosorption from bicomponent systems modelled by empirical Freundlich isotherm

Applied Microbiology and Biotechnology, 2000
The biosorption of lead, copper and zinc ions on Rhizopus arrhizus has been studied for three single-component and two binary systems. The equilibrium data have been analysed using the Freundlich adsorption model. The characteristic parameters for the Freundlich adsorption model have been determined and the competition coefficients for the competitive ...
Y, Sağ, A, Kaya, T, Kutsal
openaire   +2 more sources

Organic pollutants adsorption from multicomponent systems modeled by freundlich type isotherm

Water Research, 1982
Abstract A novel Freundlich-type multicomponent adsorption isotherm is employed successfully to describe the adsorption of parabromophenol, phenol and benzensulfonate on activated carbon from the respective bicomponent and three-component aqueous solutions.
C. Sheindorf, M. Rebhun, M. Sheintuch
openaire   +1 more source