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|Title: ||Boron mass transfer during seeded microfiltration.|
|Authors: ||Holdich, R.G.|
Cumming, Iain W.
|Keywords: ||Ion exchange|
|Issue Date: ||2006|
|Publisher: ||Elsevier © Institution of Chemical Engineers|
|Citation: ||HOLDICH, R.G., CUMMING, I.W. and PERNI, S., 2006. Boron mass transfer during seeded microfiltration. Chemical Engineering Research and Design, 84 (A1), pp. 60 - 68|
|Abstract: ||Seeded microfiltration combines the processes of microfiltration and sorption of a solute onto a solid particle, including ion exchange. The process can be performed for investigations in simple stirred cells, for laboratory mass transfer analysis, and for process-scale applications in crossflow filtration systems. Seeded microfiltration of boron at feed concentrations of up to 4 ppm using a N-glucamine type ion exchange resin showed that the process was dependent on the internal diffusion of boron inside the resin particle, with an effective particle diffusivity of 5.5 x 10−10m2 s−1. The kinetics of the process were modelled by a coupled mass transfer model, based on a well mixed stirred system, aqueous film diffusion, particle diffusion and a Langmuir type isotherm for the equilibrium conditions. The modelling suggests that a resin particle diameter of 50μm would provide improved boron extraction performance, whilst easily being retained within the microfiltration process. A comparison of the analysis of mass transfer between a conventional batch stirred cell and the continuously fed seeded microfiltration system shows that the continuously fed system has many advantages for the laboratory investigation of mass transfer parameters.|
|Description: ||This article was published in the journal, Chemical Engineering Research and Design [Elsevier © Institution of Chemical Engineers]. The definitive version is available at: http://www.sciencedirect.com/science/article/pii/S0263876206728581|
|Version: ||Accepted for publication|
|Publisher Link: ||http://www.sciencedirect.com/science/article/pii/S0263876206728581|
|Appears in Collections:||Published Articles (Chemical Engineering)|
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