Results 11 to 20 of about 204,985 (297)

Modeling of sorption kinetics: the pseudo-second order equation and the sorbate intraparticle diffusivity [PDF]

open access: yesAdsorption, 2013
The applicability of the pseudo-second order equation (PSOE) has been explained on the ground of the model assuming that the overall sorption rate is limited by the rate of sorbate diffusion in the pores of sorbent (intraparticle diffusion model). Mathematical expressions have been proposed in order to describe the dependence of the pseudo-second order
Plazinski, Wojciech   +2 more
openaire   +1 more source

Removal of mercury (II) from aqueous solution by using rice residues [PDF]

open access: yes, 2013
Sorption potential of rice residues for Hg(II) removal from aqueous solution was investigated. Rice husk (RH) and rice straw (RS) were selected and treated with sodium hydroxide (NaOH).
Johari, K.   +3 more
core   +1 more source

Biosorption of dicloxacillin from pharmaceutical waste water using tannin from Indian almond leaf: Kinetic and equilibrium studies

open access: yesBiotechnology Reports, 2020
This study focused on the use of Indian almond leaf biomass, a local plant widely found in Thailand, on removal of dicloxacillin from pharmaceutical waste water by biosorption.
Niti Sunsandee   +3 more
doaj   +1 more source

A Revised Pseudo-Second-Order Kinetic Model for Adsorption, Sensitive to Changes in Adsorbate and Adsorbent Concentrations

open access: yesLangmuir, 2021
The development of new adsorbent materials for the removal of toxic contaminants from drinking water is crucial toward achieving the United Nations Sustainable Development Goal 6 (clean water and sanitation). The characterization of these materials includes fitting models of adsorption kinetics to experimental data, most commonly the pseudo-second ...
Bullen, Jay   +3 more
openaire   +5 more sources

Optimization of biosorption process using cucumis melo rind for the removal of Fe, Mn and Pb ions from groundwater [PDF]

open access: yes, 2002
Biosorption can be an effective technique for the treatment of metal-bearing groundwater. Several fruits and agricultural by-products demonstrated the ability to remove the heavy metals and thereby reduce the water contaminants. In the present study, the
Mohd Asharuddin, Syazwani
core   +1 more source

Kinetic model for the sorption of copper ions onto sugar beet shreds [PDF]

open access: yesHemijska Industrija, 2014
Adsorption kinetics is of great significance to evaluate the performance of adsorption process. The kinetics of copper ions adsorption onto different sized sugar beet shreds has been considered.
Brdar Mirjana M.   +3 more
doaj   +1 more source

Removal of Metals by Biomass Derived Adsorbent in Its Granular and Powdered Forms: Adsorption Capacity and Kinetics Analysis

open access: yesSustainable Chemistry, 2022
Among the various existing metals, zinc and copper are predominant metals in several effluents from industries such as electroplating, plastics production and mining.
Ana Beatriz Soares Aguiar   +4 more
doaj   +1 more source

Improved shock-capturing of Jameson's scheme for the Euler equations [PDF]

open access: yes, 1992
It is known that Jameson's scheme is a pseudo-second-order-accurate scheme for solving discrete conservation laws. The scheme contains a non-linear artificial dissipative flux which is designed to capture shocks.
Brandsma   +15 more
core   +4 more sources

Kinetics of scandium recovery by TVEX-TBP from the solution formed after the salt chlorinator cake leaching [PDF]

open access: yesE3S Web of Conferences, 2020
Kinetics of scandium recovery by TVEX containing tributyl phosphate was studied from the clarified leaching solution of salt chlorinator cake. To assess the contribution of each diffusion phase, experimental data were analyzed using a graphic method.
Korovin Vadym   +4 more
doaj   +1 more source

Discrete Weighted Pseudo Asymptotic Periodicity of Second Order Difference Equations

open access: yesDiscrete Dynamics in Nature and Society, 2014
We define the concept of discrete weighted pseudo-S-asymptotically periodic function and prove some basic results including composition theorem. We investigate the existence, and uniqueness of discrete weighted pseudo-S-asymptotically periodic solution ...
Zhinan Xia
doaj   +1 more source

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