Results 251 to 260 of about 10,238,478 (297)

Pseudo-second order model for sorption processes

open access: yesProcess Biochemistry, 1999
A literature review of the use of sorbents and biosorbents to treat polluted aqueous effluents containing dyes:organics or metal ions has been conducted. Over 70 systems have been reported since 1984 and over 43 of these reported the mechanism as being a pseudo-first order kinetic mechanism. Three sorption kinetic models are presented in this paper and
Y S Ho, Gordon Mckay
exaly   +4 more sources

Pseudo-Second-Order Kinetic Equation for Describing the Effect of Sorbent and Sorbate Concentrations

open access: yesLangmuir
The sorbent concentration (Cs) effect and sorbate initial concentration (C0) effect are common phenomena observed in the study of adsorption kinetics at solid-liquid interfaces. That is, adsorption rate constants simulated with classical kinetic equations, such as the pseudo-second-order (PSO) model, for a given system vary with Cs and C0.
Hongfei Wang, Lingxi Zhao, Wanguo Hou
openaire   +3 more sources

On the use of linearized pseudo-second-order kinetic equations for modeling adsorption systems

Desalination, 2010
Abstract Simulated pseudo-second-order kinetic adsorption data were analyzed by different methods of least-squares regression. The methods used were non-linear regression and four linearized forms of the pseudo-second-order equation. The simulated data were compromised with three different homoskedastic and heteroskedastic error distributions. In the
Yuh-Shan Ho
exaly   +2 more sources

Adsorption kinetics at solid/aqueous solution interfaces: On the boundaries of the pseudo-second order rate equation

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2020
Abstract The empirical pseudo-second order rate equation has become the equation of choice to account for adsorption kinetics at solid/aqueous solution interfaces. However, its validity boundaries still remain faint. Here, they are set on the basis of the predictions of the well-established Langmuir model, cast in terms of the relevant kinetic ...
Alberto E Regazzoni
exaly   +2 more sources

Pseudo-second-order model for lead ion sorption from aqueous solutions onto palm kernel fiber

Journal of Hazardous Materials, 2006
The sorption of lead ion onto palm kernel fiber was studied by performing batch kinetic sorption experiments. The batch sorption model, based on a pseudo-second-order mechanism, was applied to predict the rate constant of sorption, the equilibrium capacity and the initial sorption rate with the effects of the initial solution pH and fiber dose ...
Augustine E Ofomaja, Yuh-Shan Ho
exaly   +3 more sources

Pseudo-second order models for the adsorption of safranin onto activated carbon: Comparison of linear and non-linear regression methods

Journal of Hazardous Materials, 2007
Kinetic experiments were carried out for the sorption of safranin onto activated carbon particles. The kinetic data were fitted to pseudo-second order model of Ho, Sobkowsk and Czerwinski, Blanchard et al. and Ritchie by linear and non-linear regression methods.
K Vasanth Kumar
exaly   +3 more sources

Dynamic studies and pseudo-second order modeling of copper(II) biosorption onto pine cone powder

Desalination, 2010
Abstract The chemical interaction between biosorbent functional groups and metal ion species in solution can slightly be altered by chemical treatment of biosorbent surface. The biosorbent kinetics and mechanism for copper(II) biosorption onto pine cone powder and 0.15 mol dm − 3 NaOH treated pine cone powder were determined during batch kinetics ...
Augustine E Ofomaja   +2 more
exaly   +2 more sources

Home - About - Disclaimer - Privacy