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... energy was 50.1 kJ/mol for Bz and 55.1 kJ/mol for Cx. The solution-diffusion model was used to elucidate the mass-transfer mechanism. The sorption isotherms of the liquid mixtures in the membranes were determined. The diffusivity coefficients were calculated and compared using PV results an ...
Desalination 149 (2002)
Pervaporation as a deodorization process applied to food industry effluents: recovery and valorisation of aroma compounds from cauliflower blanching water
... three sulfur compounds, operative conditions of pervaporation were determined. A 100 µm PEBA membrane was selected. On this membrane, the sorption step of the sulfur compounds was the limiting step. The highest flux was obtained with the DMTS which has the lowest diffusion coefficient but th ...
Desalination 148 (2002)
Comparative studies of cobalt sorption and desorption on bentonite, alumina and silica: effect of pH and fulvic acid
The fate and transport of toxic metal ions and radionuclides in the environment are generally controlled by sorption reactions. The extent of sorption of divalent metal cations is controlled by a number of factors including the presence of other cosorbing or complexing ions. In this work, th ...
Desalination 244 (2009)
... by rhamnolipid biosurfactant were investigated. As the concentration of Zn(II) ions in solution was increased from 0.47 to 4.08 mM, Zn(II) ions sorption to Na-feldspar decreased from 67.74 to 19.47%. As the concentration of rhamnolipid was increased from 12.5 to 100 mM, the optimum desorptio ...
Desalination 223 (2008)
Activated carbon (AC) is used for the removal of organic compounds from freshwater and saltwater systems. The effect of salinity on the sorption of organic compounds by sorbents with pores such as AC is not yet well understood. Phenanthrene sorption equilibrium and kinetic experiments ar ...
Desalination 210 (2007)
... Sorption and pervaporation experiments were carried out with PVA/PAA cross-linked membranes for the separation of azeotropic methyl tert-butyl ether an ...
Desalination 160 (2004)
Calcium alginate beads from Laminaria digitata for the removal of Cu+2 and Cd+2 from dilute aqueous metal solutions
... the remediation of dilute aqueous metal solutions was studied. Alginate was found to be a promising material for heavy metal sequestration while sorption was found to be following a competitive mechanism in multi-metal solutions. The obtained maximum adsorption capacities for Cu+2 and Cd+2 were 1. ...
Desalination 224 (2008)
The sorption of ammonium ions and ammonia by the H+ form of sulphonic acid cation exchangers Amberlite 252, Lewatit 2629 and Relite C 360 from a solutio ...
Desalination 175 (2005)
Water vapor and gas transport through a poly(butylene terephthalate) poly(ethylene oxide) block copolymer
... from mixed gas experiments at temperatures up to 80°C and 80 bar. The diffusion coefficient of water decreases with activity when determined from sorption and permeation experiments. The water vapor permeability decreases and the nitrogen permeability increases with increasing temperature. Thi ...
Desalination 148 (2002)
Nanocomposite-based polyamide 12/montmorillonite: relationships between structures and transport properties
... intercalated or semi-exfoliated. This phenomenon is not included in the model. In the future work, this phenomenon will be studied by water sorption measurement. Desalination 199 (2006) 164–166 Nanocomposite-based polyamide 12/montmorillonite: relationships between structures and transpor ...
Desalination 199 (2006)