Reverse osmosis for water purification
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Transcript of Reverse osmosis for water purification
Reverse Osmosis for Water PurificationTE 552 Nonwoven Product Development
Neslihan Yagmur
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.
Advantages of RO
• Improves taste, odor and appearance• Highly effective purification process
remove the pollutants• Consumes no energy
Advantages of RO
• Flushes away pollutants, does not collect them
• Easy to keep clean• Low production cost
General Aspects to RO Systems
Diagram of a Reverse Osmosis System with Basic Components
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
RO system taskTypes of membranes
From Tap Water to Pure Water
RO Membranes
Membranes
1.RO Membranes
3. Spiral Membranes
2.Hollow Fiber
Membranes
1. RO Membranes
A. Cellulose-
Based Membranes
B.
Thin Film Composite Membranes
A. Cellulose-Based Membranes
• casting a thin film acetone-based solution of cellulose acetate (CA) polymer
• the first commercially RO membrane
B. Thin Film Composite Membranes
• Thin film composite (TFC) polyamide membranes are consisted of a porous support layer and a thin film dense layer
2. Hollow Fiber Membranes
• Bundle of fibers replace in porous pipe
Spiral Membranes
How RO System works?
Design Considerations
Design Considerations
1. Quality of input water
2. Required quality of pure water
3. Required quantity of output water
Usage Areas
• Industry– Feed water treatment for Steam Boilers,– Pharmaceutical– Food and Beverage,– bottled water productions.
• Medical sectors– Hemodialysis treatment,– Laboratories.
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
THANK YOU FOR YOUR ATTENTION