Results 241 to 250 of about 11,733 (297)

Treatment of crude olive mill wastewaters by osmotic distillation and osmotic membrane distillation

Separation and Purification Technology, 2013
Olive oil extraction industry is a very important economic activity in the entire Mediterranean basin. The olive mill wastewaters (OMWs) are seasonally produced with large volumes of toxic and polluting wastewaters. Amongst other organic constituents, crude OMW contain high concentrations of phenolic compounds up to 10 g/L that make, along with the ...
A. El-Abbassi, M. Khayet, H. Kiai, A. Hafidi, M.C. García-Payo   +4 more
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Membrane Distillation and Osmotic Distillation

2010
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Curcio E, Di Profio G, Drioli E
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Understanding Membrane Distillation and Osmotic Distillation

2017
This book addresses principles and practical applications of membrane distillation and osmotic distillation, separation technologies which are gaining increasing attention due to their advantages over conventional concentration processes. Addresses membrane and osmotic distillation, two closely related and novel processes that offer several advantages ...
Johnson, Robert A., Nguyen, Minh H.
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Osmotic Membrane Distillation - A Brief Review

International Journal of Food Engineering, 2006
In recent years, osmotic membrane distillation is gaining importance as an attractive/ complementary athermal membrane process. Osmotic membrane distillation is having potential to concentrate the biomolecules/liquids to a very high level under mild operating condition, without product damage.
Naveen Nagaraj, Balaji Shivaji Patil, Prashant Maharudrappa Biradar   +2 more
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New opportunities for osmotic membrane distillation

Membrane Technology, 2006
This article discusses a potential large-scale application for osmotic membrane distillation — a relatively new membrane technology. More specifically, commercial opportunities for the technology are discussed using an example of NaCl brine re-concentration in the chlor-alkali industry.
Dmitri Bessarabov, Zbigniew Twardowski
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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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Osmotic distillation through porous hydrophobic membranes

Journal of Membrane Science, 1993
Abstract Osmotic distillation through porous hydrophobic membranes has been studied theoretically and experimentally. In particular the influence of the unstirred diffusion boundary layer has been determined. A model has been develop which describes the contributions of solution concentration and stirring rate.
Juan I. Mengual, Jose´M. Ortiz de Za´rate, Luis Pen˜a, Armando Vela´zquez   +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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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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Thermal effects in osmotic distillation

Journal of Membrane Science, 1999
Abstract Osmotic distillation (OD) is a concentration technique for aqueous mixtures based on porous hydrophobic membranes in contact on both sides with liquid phases at pressure lower than the pressure needed to displace the gas phase in the pores. The driving force for the water vapour diffusion through the gas phase immobilised within the membrane
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