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Mass transfer in osmotic membrane distillation.

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Relation http://ir.cftri.com/555/
http://www.sciencedirect.com/science/journal/03767388
10.1016/j.memsci.2005.06.007
 
Title Mass transfer in osmotic membrane distillation.
 
Creator Naveen, Nagaraj
Ganapathi, Patil
Ravindra Babu, B.
Umesh Hebbar, H.
Raghavarao, K.S.M.S.
Sanjay, Nene
 
Subject 05 Fruit juice
05 Processing and Engineering
 
Description Osmotic membrane distillation is a novel athermal membrane process that facilitates the maximum concentration of liquid foods under mild operating conditions. In the present study, the effect of various process parameters such as type, concentration and flow rate of the osmotic agent; type (polypropylene membranes) and pore size (0.05 and 0.2 μm) of the membrane; temperature with respect to transmembrane flux was studied. Experiments were performed with real systems (pineapple/sweet lime juice) in a flat membrane module. Osmotic agents namely sodium chloride and calcium chloride at varying concentrations are employed. For both the osmotic agents, higher transmembrane flux was observed at maximum osmotic agent concentration. In comparison with sodium chloride, higher transmembrane flux was observed in case of calcium chloride. A mass transfer-in-series resistance model has been employed, considering the resistance offered by the membrane as well the boundary layers (feed and brine sides) in case of real systems for the first time. The model could predict the variation of transmembrane flux with respect to different process parameters.
 
Date 2006
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://ir.cftri.com/555/1/Journal_of_Membrane_Science_268_%282006%29_48-56.pdf
Naveen, Nagaraj and Ganapathi, Patil and Ravindra Babu, B. and Umesh Hebbar, H. and Raghavarao, K.S.M.S. and Sanjay, Nene (2006) Mass transfer in osmotic membrane distillation. Journal of Membrane Science, 268 (1). pp. 48-56. ISSN 0376-7388