Results 211 to 220 of about 2,307 (243)

Osmotic distillation of oily feeds

Journal of Membrane Science, 1999
Abstract This paper describes the development of modified hydrophobic membranes for osmotic distillation (OD) which are tolerant to oily feeds. Three commercial membranes were chosen as substrates including the Celgard 2500, Millipore GVSP and the UPVP. The focus has been on using PVA coatings which were found to have an insignificant effect on flux.
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Mass transfer in osmotic membrane distillation

Journal of Membrane Science, 2006
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 ...
Naveen Nagaraj, Ganapathi Patil, B. Ravindra Babu, Umesh H. Hebbar, K.S.M.S. Raghavarao, Sanjay Nene   +5 more
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Concentration of clarified kiwifruit juice by osmotic distillation

Journal of Food Engineering, 2007
This study was undertaken in order to evaluate the potential of the osmotic distillation (OD) process for concentrating clarified kiwifruit juice on laboratory scale, taking into account the impact on the product quality especially in terms of ascorbic acid content and total antioxidant activity (TAA). The performance of the OD process in terms of flux
Cassano A, Drioli E
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Vapour Transport Mechanism in Osmotic Distillation Process

International Journal of Food Engineering, 2009
Osmotic distillation experiments were carried out using pure water as feed in order to investigate the mass transfer mechanism in the membrane. In the experiment, the hollow fibre modules with packing density of 30.6 and 61.2% were employed. The Dusty gas model was used to estimate the transport of vapour through the membrane. The results revealed that
Thanedgunbaworn, Ratchaneekorn, Jiraratananon, Ratana, Nguyen, Minh H.   +2 more
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Osmotic distillation applying potassium pyrophosphate as brine

Journal of Food Engineering, 2018
Abstract Potassium pyrophosphate was applied as stripping solution in osmotic distillation of fruit juices. The permeate ranged between 0.56 and 1.45 kg/m2h, being more sensitive to the variation of the feed temperature. After pre-saturating the experimental apparatus, no significant effect on the degradation of ascorbic acid was found and the losses
Ricardo Schmitz Ongaratto, Leonardo Menezes, Cristiano Piacsek Borges, Paulo Laranjeira da Cunha Lage   +3 more
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Acoustic field-assisted osmotic membrane distillation

Desalination, 2002
Abstract Osmotic membrane distillation (OMD) is a novel membrane process that facilitates the concentration of aqueous solutions under mild operating conditions. The main drawback of OMD, like any other membrane process, is relatively low flux. In the present work acoustic field has been applied for the enhancement of transmembrane flux.
A.V. Narayan, Naveen Nagaraj, H.Umesh Hebbar, A. Chakkaravarthi, K.S.M.S. Raghavarao, Sanjay Nene   +5 more
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Coupled Phenomena Membrane Distillation and Osmotic Distillation through a Porous Hydrophobic Membrane

Separation Science and Technology, 1995
Abstract Water transport in the vapor phase through a porous hydrophobic membrane has been studied in different experimental situations. Pure water and/or different aqueous solutions of sodium chloride, ranging from 0.5 to 5 mol/L, were employed on both sides of the membrane.
M. P. Godino, L. Peña, J. M. Ortiz De Zárate, J. I. Mengual   +3 more
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Osmotic distillation with propylene glycol, glycerol and glycerol–salt mixtures

Journal of Membrane Science, 2004
Abstract Aqueous solutions of propylene glycol (PG), glycerol and glycerol–salt mixtures are investigated as alternative to calcium chloride, normally employed to concentrate aqueous mixtures by osmotic distillation (OD). These extractants can overcome the problems of corrosion and scaling associated with the use of brines.
M. CELERE, GOSTOLI, CARLO
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Effect of Process Parameters on Partial Dealcoholization of Wine by Osmotic Distillation

Food and Bioprocess Technology, 2012
The effectiveness of the osmotic distillation process for partial dealcoholization of wine was investigated in this work. The dealcoholization process was performed using a hollow fibre membrane module and process parameters, such as hydrodynamic conditions, number of cycles, temperature and ethanol content of feed solution were investigated.
LIGUORI, LOREDANA, Paola Russo, ALBANESE, DONATELLA, DI MATTEO, Marisa   +3 more
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Membrane and Osmotic Distillation Processes

2021
Nazely Diban, Olga Kattan, Anton A. Kiss
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