2. What is Reverse Osmosis?
• Reverse osmosis (RO) is a separation
process that uses pressure to force a
solvent through a membrane, which
retains the solute on one side and
allows the pure solvent to pass to the
other side.
3. Advantages of RO
• Improves taste, odor and appearance
• Highly effective purification process
remove the pollutants
• Consumes no energy
4. Advantages of RO
• Flushes away pollutants, does not
collect them
• Easy to keep clean
• Low production cost
6. Diagram of a Reverse Osmosis System
with Basic Components
7. Diagram of a Reverse Osmosis System
with Basic Components
1. Cold Water Line
Valve
2. Pre-Filter
3. Reverse Osmosis
Membrane
4. Post filter
5. Automatic Shut-
Off Valve
6. Check Valve
7. Flow Restrictor
8. Storage Tank
9. Faucet
10. Drain line
13. A. Cellulose-Based Membranes
• casting a thin film acetone-based
solution of cellulose acetate (CA)
polymer
• the first commercially RO membrane
14. B. Thin Film Composite Membranes
• Thin film composite (TFC)
polyamide membranes are consisted
of a porous support layer and a thin
film dense layer
15. 2. Hollow Fiber Membranes
• Bundle of fibers replace in porous
pipe
20. Usage Areas
• Industry
– Feed water treatment for Steam Boilers,
– Pharmaceutical
– Food and Beverage,
– bottled water productions.
• Medical sectors
– Hemodialysis treatment,
– Laboratories.
21. References
• Sagle, A., Freeman, B., Fundamentals of Membranes for
Water Treatment, University of Texas at Austin
• U. S. Patent 4978550
• www.espwaterproducts.com
• Yaşa, E., Ters Ozmoz (TO) Su Arıtma Tekniği ve Muhtelif
Kullanım Alanları, 2010