Title: Journal of Fishery Sciences of China

Title: Journal of Fishery Sciences of China

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? Zhang, X.Q., Wu, J. and Chen, X.R. (2007), Citation analysis on Journal of Fishery Sciences of China during 2004-2005. Journal of Fishery Sciences of China, 14 (3), 517-521.

Full Text: 2007\J Fis Sci Chi14, 517.pdf

Abstract: Based on the citation information provided by INSTITUTE OF SCIENTIFIC and TECHNICAL INFORMATION OF CHINA in 2006,the citation analysis was conducted on Journal of Fishery Sciences of China(JFSC) according to the citation data during 2004-2005. The results show that the number of citing journals to JFSC was 162 and total citing frequencies was 1 142 times during the two years. The highest citing frequency to an individual author was 33 times and the highest citing frequency to a single article was 16 times. For...

Keywords: Bibliometric Index, Journal of Fishery Sciences of China, Citation Analysis

Title: Journal of Fluid Mechanics

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Notes: highly cited

? Cvetkovic, V. and Dagan, G. (1994), Transport of kinetically sorbing solute by steady random velocity in heterogeneous porous formations. Journal of Fluid Mechanics, 265), 189-215.

Abstract: A Lagrangian framework is used for analysing reactive solute transport by a steady random velocity field, which is associated with flow through a heterogeneous porous formation. The reaction considered is kinetically controlled sorption-desorption. Transport is quantified by the expected values of spatial and temporal moments that are derived as functions of the non-reactive moments and a distribution function which characterizes sorption kinetics. Thus the results of this study generalize the previously obtained results for transport of non-reactive solutes in heterogeneous formations (Dagan 1984; Dagan et al. 1992). The results are illustrated for first-order linear sorption reactions. The general effect of sorption is to retard the solute movement. For short time, the transport process coincides with a non-reactive case, whereas for large time sorption is in equilibrium and solute is simply retarded by a factor R = 1 + K(d), where K(d) is the partitioning coefficient. Within these limits, the interaction between the heterogeneity and kinetics yields characteristic nonlinearities in the first three spatial moments. Asymmetry in the spatial solute distribution is a typical kinetic effect. Critical parameters that control sorptive transport asymptotically are the ratio epsilon(r) between a typical reaction length and the longitudinal effective (non-reactive) dispersivity, and K(d). The asymptotic effective dispersivity for equilibrium conditions is derived as a function of parameters epsilon(r) and K(d). A qualitative agreement with field data is illustrated for the zero- and first-order spatial moments.

Keywords: Equilibrium, Flux Approach, Heterogeneity, Interaction, Kinetics, Local Equilibrium, Mass-Transfer, Natural Gradient Experiment, Nonequilibrium Transport, Partitioning, Sand Aquifer, Sorption, Sorptive Solute, Spatial Moments, Stochastic-Analysis, Varying Velocity

Title: Journal of Fluorine Chemistry

ISO Abbreviated Title: J. Fluor. Chem.

JCR Abbreviated Title: J Fluorine Chem

ISSN: 0022-1139

Issues/Year: 13

Journal Country/Territory: Switzerland

Language: Multi-Language

Publisher: Elsevier Science SA

Publisher Address: Po Box 564, 1001 Lausanne, Switzerland

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Chemistry, Inorganic & Nuclear: Impact Factor 1.193 (2003)

Chemistry, Organic: Impact Factor 1.193 (2003)

Mahramanlioglu, M., Kizilcikli, I. and Bicer, I.O. (2002), Adsorption of fluoride from aqueous solution by acid treated spent bleaching earth. Journal of Fluorine Chemistry, 115 (1), 41-47.

Full Text: J\J Flu Che115, 41.pdf

Abstract: Acid treated spent bleaching earth was studied to assess its capacity for the adsorption of fluoride from aqueous solutions. Adsorption isotherms have been modeled by Langmuir and Freundlich equations and isotherm constants for both isotherms were calculated. The effect of the adsorbent concentration on the adsorption was studied. The dependence of the adsorption of fluoride on the pH of the solution has been studied to achieve the optimum pH-value and a better understanding of the adsorption mechanism. It has been found that maximum adsorption of fluoride from aqueous solutions takes place at pH-value of 3.5. Second-order equation was used to describe the adsorption rate of fluoride and adsorption rate constant was calculated. Intraparticle and mass transfer coefficients were calculated. The influence of addition of the anions on the adsorption of fluoride was also studied to simulate industrial waste waters and the addition of anions decreased the adsorption of fluoride on the acid treated spent bleaching earth (SBE). (C) 2002 Elsevier Science B.V All rights reserved.

Keywords: Fluoride, Adsorption, Spent Bleaching Earth, Fluoride Removal, Waste Water Treatment, Mass Transfer, Intraparticle Diffusion, Adsorption Kinetics, Fly-Ash, Activated Bentonite, Removal, Water, Ions, Defluoridation, Adsorbents, Uranium, Clay

? Viswanathan, N. and Meenakshi, S. (2008), Selective sorption of fluoride using Fe(III) loaded carboxylated chitosan beads. Journal of Fluorine Chemistry, 129 (6), 503-509.

Full Text: 2008\J Flu Che129, 503.pdf

Abstract: Chitosan beads (CB) as such have very low defluoridation capacity (DC) of 52 mgF(-)/kg have been suitably modified by carboxylation followed by chelation with Fe³⁺ ion (Fe-CCB), in order to effectively utilize both hydroxyl and amine groups for defluoridation. The modified beads showed enhanced DC to a very significant level of 4230 mgF(-)/kg. The fluoride removal process is governed by both adsorption and complexation mechanism. The sorbent was characterized using Fourier transform infrared spectrometer (FTIR) and scanning electron microscope (SEM) analysis. The experimental data have been analysed using isotherm and kinetic models. Thermodynamic parameters such as G, H and S were calculated to predict the nature of sorption. A field trial was carried out with fluoride water collected from a nearby fluoride-endemic village. (C) 2008 Elsevier B.V. All rights reserved.

Keywords: Adsorption, Adsorption, Analysis, Beads, Capacity, Carboxylation, Chelation, Chitosan, Complexation, Defluoridation, Equilibrium, Experimental, Fe(III), Fe-CCB, Fluoride, Fluoride Removal, Freundlich, FTIR, Ion, Isotherm, Kinetic, Kinetic Models, Langmuir, Mechanism, Models, Pseudo-First-Order, Pseudo-Second-Order, Removal, Rights, SEM, Sorbent, Sorption, Thermodynamic, Thermodynamic Parameters, Water

? Viswanathan, N. and Meenakshi, S. (2008), Effect of metal ion loaded in a resin towards fluoride retention. Journal of Fluorine Chemistry, 129 (7), 645-653.

Full Text: 2008\J Flu Che129, 645.pdf

Abstract: Indion FR 10 is a commercially available ion exchange resin with sulphonic acid functionality named as H⁺ form, has appreciable defluoridation capacity (DC). It has been chemically modified to La³⁺, Fe³⁺, Ce³⁺ and Zr⁴⁺ forms by incorporating respective metal ions into the resin in order to know their fluoride selectivity by measuring the DC of the respective resin. The maximum DC of these chemically modified ion exchange resins namely La³⁺, Fe³⁺, Ce³⁺ and Zr⁴⁺ forms were found to be 469.7, 467.5, 456.3 and 470.9 mg F^-/kg respectively suggests their higher selectivity towards fluoride than H+ form which has the DC of only 275 mg F^-/kg at 11 mg/L initial fluoride concentration. The higher DC of the modified resins was explained by electrostatic adsorption and complexation whereas H⁺ form retains fluoride by hydrogen bond. The functional groups present in the sorbents were identified by FTIR and the existence of fluoride onto the resins was confirmed by EDAX analysis. The experimental data was fitted with both Freundlich and Langmuir isotherms. Thermodynamic parameters such as G, H and S indicate that the nature of sorption is spontaneous and endothermic. The applicability of reaction-based and diffusion-based kinetic models was investigated. A field trial was carried out with fluoride water collected from a nearby fluoride-endemic village to test the suitability of these sorbents at field conditions. (c) 2008 Elsevier B.V. All rights reserved.

Keywords: Indion FR 10, Modification, Defluoridation, Adsorption, Complexation, Freundlich, Langmuir, Kinetics, Rhizopus-Arrhizus Biomass, Aqueous-Solution, Waste-Water, Adsorption, Removal, Sorption, Equilibrium, Models, Carbon, Hard

? Gao, S., Cui, J. and Wei, Z.G. (2009), Study on the fluoride adsorption of various apatite materials in aqueous solution. Journal of Fluorine Chemistry, 130 (11), 1035-1041.

Full Text: 2009\J Flu Che130, 1035.pdf

Abstract: The aim of this study was to evaluate the defluoridation efficiencies of various sorbents in aqueous solution. These sorbents include synthetic nano-hydroxyapatite (n-HAp), biogenic apatite (bone meal), treated biogenic apatite (bone meal prepared by H₂O₂ oxidation) and geogenic apatite (rock phosphate), which were characterized by XRD, FTIR, TEM and SEM. It has been observed that the defluoridation capacities follow the order: n-HAp > BH₂O₂ > B > rock phosphate. The controlling factors, sorbent dose, initial fluoride concentration, pH, contact time and temperature were investigated. The defluoridation capacities increased with the increase in the initial fluoride concentration and contact time, decreased with the increase in the sorbent dose. The optimum pH range for removal of fluoride on various apatite sorbents was considered to be 5.0-6.0. The fluoride adsorption can be explained by Langmuir, Freundlich isotherms, and the adsorption kinetic data follow the pseudo-second-order model. Thermodynamic parameters such as ΔH-0, ΔS-0 and ΔG(0) indicated that the adsorption on various apatite sorbents was spontaneous and endothermic. These results showed that bone meal is a promising material for fluoride adsorption. (C) 2009 Elsevier B.V. All rights reserved.

Keywords: Adsorption, Adsorption Kinetic, Apatite, Aqueous Solution, Bone, Bone Meal, Concentration, Contact Time, Data, Defluoridation, Defluoridation Capacity, Donnan Dialysis, Drinking-Water, Endothermic, Fluoride, Fluoride Adsorption, Freundlich, Freundlich Isotherms, FTIR, H₂O₂, Hydroxyapatite, Isotherms, Kinetic, Kinetics, Langmuir, Model, n-Hap, NOV, Oxidation, Part I, pH, Phenol, Phosphate, Pseudo Second Order, Pseudo-Second-Order, Pseudo-Second-Order Model, Removal, Rights, SEM, Solution, Sorbent, Sorbent Dose, Sorbents, Spontaneous, TEM, Temperature, Thermodynamic, Thermodynamic Parameters, Waste, XRD

? Liu, Q., Guo, H.M. and Shan, Y. (2010), Adsorption of fluoride on synthetic siderite from aqueous solution. Journal of Fluorine Chemistry, 131 (5), 635-641.

Full Text: 2010\J Flu Che131, 635.pdf

Abstract: The study has investigated the feasibility of using synthetic siderite for F^- removal from aqueous solution. Batch experiments were performed to test effects of adsorbent dosage, contact time, initial F concentration, temperature, solution pH, and coexisting anions on F^- removal. Results show that the kinetic rate of F^- adsorption was high in the first 2 h, and thereafter significantly decreased. The kinetic data was better fitted to the pseudo-second order kinetic model than the pseudo-first order kinetic model. In comparison with Langmuir isotherm, both Freundlich and Redlich-Peterson isotherms better described the adsorption process, which indicates that the multilayer adsorption should be involved in the process of F^- removal. Thermodynamic study manifests that F^- adsorption on synthetic siderite was spontaneous and exothermic in nature. The synthetic siderite had high adsorption capacity for F^- removal, which was up to 1.775 mg/g in the batch with an adsorbent dosage of 5 g/L and an initial F- concentration of 20 mg/L at 25ºC. The adsorption was relatively independent on solution pH between 4 and 9. The presence of Cl^- and NO₃^- had less impact on F^- adsorption, while PO₄^3- significantly affected F^- removal from aqueous solution. Results of X-ray diffraction (XRD) and scanning electron microscopy (SEM) suggest that the high adsorption capacity possibly arose from both coprecipitation of ferric hydroxide with F^- and adsorption of F^- on the fresh goethite. (C) 2010 Elsevier B.V. All rights reserved.

Keywords: Activated Carbon, Adsorbent, Adsorbent Dosage, Adsorption, Adsorption Capacity, Anions, Aqueous Solution, Batch, Capacity, Comparison, Concentration, Coprecipitation, Data, Defluoridation, Drinking-Water, Electron Microscopy, Exothermic, Experiments, F, Feasibility, First, Fluoride, Freundlich, Goethite, Groundwater, Groundwater, Impact, Isotherm, Isotherms, Kinetic, Kinetic Model, Kinetics, Langmuir, Langmuir Isotherm, Model, Multilayer, Parameters, pH, Pseudo First Order, Pseudo Second Order, Pseudo-First Order, Pseudo-First-Order, Pseudo-Second Order, Pseudo-Second-Order, Redlich-Peterson, Removal, Removal, Rights, Scanning Electron Microscopy, SEM, Solution, Sorption, Temperature, Thermodynamic, Thermodynamic Study, Thermodynamics, X-Ray, X-Ray Diffraction, XRD