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the highest Er(Ⅲ) ion uptake as 250 mg/g at 298 K, at an initial pH value of 6.04, calculated from the Langmuir isotherm model. The adsorption kinetics was in agreement with Lagergren-first-order kinetics...Adsorption of erbium(Ⅲ) on D113-Ⅲ resin from aqueous solutions:batch and column studies YAO Caiping1,XIONG Chunhua1,MENG Yuan1,SHEN Chen1 (1.Department of Applied Chemistry,Zhejiang Gongshang......
is determined to be 10 g/L. The kinetics and adsorption isotherms of the adsorption process can be best-fitted with the pseudo second order kinetics and Langmuir isothermal model, respectively... been conducted to discuss the adsorption mechanism. Loess soils in China have proven to be a potential adsorbent for Ni(II) removal from aqueous solutions.Key words:adsorption mechanism; kinetics......
and contact time, the adsorption isotherms and the sorption kinetics were investigated. The experimental results were compatible with the Langmuir isotherm model. The theoretical maximum adsorption... with the adsorbent dosage of 15 g/L. Key words: La(III)-modified zeolite; fluoride removal; zinc sulfate solution; adsorption isotherm; kinetics 1 Introduction Zinc is an important non-ferrous metal......
the equilibrium adsorption describes the reaction pathways and rate of adsorption [32]. Fig. 2 Linear plots of lnqe versus ln2(1+c-1) with R2 of 0.971; Adsorption kinetics shows large dependence on the physical... equilibrium (constant value) after 60 min. It is obvious that the physical and chemical characteristics of the bentonite greatly affect the nickel adsorption. Fig. 3 Adsorption kinetics of Ni(II......
), Zn(II), Fe(III), Ca(II) and Mg(II) . 3.3 Adsorption behaviours of BTR for Ag(I) 3.3.1 Effect of contact time on adsorption and adsorption kinetics The effect of contact time on the adsorption...). The obtained results are presented in Fig.3 and Table 2. Fig.3 Relationship of -ln(1-F) and t for BTR Table 2 Linear equations of adsorption kinetics of BTR It is obvious that a linear relationship......
. The adsorption rate is found to accelerate with an increase in the amount of BF. Fig.1 Time dependence of Cd ion adsorption onto BF: (a) Time course; (b) Kinetics curves (Cd initial concentration: 0.1... constant (mmol?g-1?min-1). Plots of t/qt vs t for Cd-BF systems are shown in Fig.1(b). It can be seen that the adsorption process for Cd on BF follows the pseudo second-order kinetics. 3.3 Effect of pH......
J. Cent. South Univ. Technol. (2009) 16: 0405-0409 DOI: 10.1007/s11771-009-0068-5 Adsorption and desorption properties of D318 resin for Cr(Ⅵ) SHU Zeng-nian (舒增年)1, XIONG Chun-hua (熊春华)2 (1...; Abstract: The adsorption......
adsorbent dosage (~6.25 g/L),adsorption temperature(308 K),and adsorption time(40 min)were figured out.A pseudo-second-order kinetics model was em- ployed for describing the adsorption process...Extraction of scandium from red mud by modified activated carbon and kinetics studyZHOU Hualei~(a,b) LI Dongyan~a TIAN Yajun~a CHEN Yunfa~a ~a State Key Laboratory of Multi-phase Complex System......
and adsorption. The decolorization of MO catalyzed by AC/n-CdS/CS fits with the Langmuir-Hinshelwood kinetics model and a surface reaction, where the dyes are absorbed, is the controlling step of the process.... Kinetics of the adsorption of reactive dyes by chitosan [J]. Dyes Pigments, 2006, 70(2): 76-83. [20] KYZAS G Z, LAZARIDIS N K. Reactive and basic dyes removal by sorption onto chitosan derivatives [J]. J......
(Ⅲ) followed both the Langmuir isotherm and Freundlich isotherm,and the correlation coefficients had been evaluated.Even kinetics on the adsorption of Ce(Ⅲ) had been studied.The adsorption rate constant...Adsorption and desorption properties of D151 resin for Ce(Ⅲ)姚彩萍Department of Applied Chemistry,Zhejiang Gongshang University摘 要:The present research......