Results 11 to 20 of about 1,005,707 (276)
Karbala International Journal of Modern Science, 2018 Abstract The experimental adsorption equilibrium of Cd(II) onto chitosan (Cd(II)/CS) and methyl orange onto bentonite (MO/Bt) were studied in batch adsorption experiments at room temperature for an initial concentration of 236.5 mg/L for Cd (II) (pH = 5) and 33 mg/L for MO (pH = 3).
Hamou Moussout +3 more
openaire +3 more sources
On the comparison of pseudo-first order and pseudo-second order rate laws in the modeling of adsorption kinetics [PDF]
Chemical Engineering Journal, 2016 In most works in the current literature about liquid/solid adsorption kinetics, the respective abilities of pseudo-first order and pseudo-second kinetics for describing the data are compared. In nearly all cases, it is concluded that the latter surpasses the former.
Jean-Pierre Simonin
openaire +4 more sources
Modeling of sorption kinetics: the pseudo-second order equation and the sorbate intraparticle diffusivity [PDF]
Adsorption, 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
The Heavy Quark Form Factors at Two Loops [PDF]
, 2017 We compute the two-loop QCD corrections to the heavy quark form factors in case of the vector, axial-vector, scalar and pseudo-scalar currents up to second order in the dimensional parameter $\epsilon = (4-D)/2$.
Ablinger, J. +7 more
core +1 more source
Adsorption of Bromothymol Blue (BTB) Dye Using Four Zeolites as Adsorbent [PDF]
Kemija u Industriji, 2021 This study examined adsorption of anionic dye on four zeolitic materials incorporated (VS-1, CuZSM-5) and not incorporated into metals (S-1, ZSM-5).
Affaf Tabti +4 more
doaj +1 more source
Spectral methods for the wave equation in second-order form [PDF]
, 2010 Current spectral simulations of Einstein's equations require writing the equations in first-order form, potentially introducing instabilities and inefficiencies. We present a new penalty method for pseudo-spectral evolutions of second order in space wave
B. Fornberg +5 more
core +3 more sources
Kinetic model for the sorption of copper ions onto sugar beet shreds [PDF]
Hemijska 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
Sustainable 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
Langmuir, 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
Kinetics of scandium recovery by TVEX-TBP from the solution formed after the salt chlorinator cake leaching [PDF]
E3S 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