Membrane Separation Market Size, Trends, Applications, and Industry Strategies
What you get in your mind upon listening the word, membrane separation? Never mind, don’t put much of a stress on your mind. Just go through this blog.
A membrane separates components of a mix, on the basis of its permeability. Membrane separation makes use of a semi-permeable membrane for allowing only a limited particles to pass through them and reject the rest.
Different Membrane Processes
If we talk about the common membrane filtration processes, they are ultrafiltration, reverse osmosis and nanofiltration. Pressure is the force, which is used for material transport in all these processes. While ultrafiltration and microfiltration membranes are characterized by their molecular weight cut off, reverse osmosis and nanofiltration membranes are categorized by their pore size.
Electrodialysis and Pervaporation are the techniques that come in really handy in food industry. The force used for electrodialysis is electric field and for pervaporation is concentration difference.
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Ultrafiltration
It is mainly used for protein recovery, lactose separation from whey, and waste water treatment. Along with Ion exchange, UF also comes good to do away with all the bitterness of citrus juices. The MWCO for UF membranes is 0.01-0.05µm and pressures are at 20-200 psi. UF membranes have a MWCO of 1,000-500,000 Daltons.
Reverse osmosis
RO is used in removal of dissolved solids from water. RO and NF are used in the concentrations of aqueous solutions by membrane elimination of water. MWCO for RO membranes is not over 100 Daltons and pressures are 200-1500psi.
Electrodialysis
Electrodialysis parts non-electrolytes from electrolytes on the basis of migration of ions with the help of ion selective membranes influenced by applied electric field. Food applications of electrodialysis comprise deacidification of fruit juices, demineralization of whey, and water desalting.
Coming to a Conclusion
It is because of the use of these separation membranes in a lot of industries, as well as in residential applications, the demand for these will continue to rise substantially in the years to come.
