Weather / Climate White Papers
Commercial RO Technology
Overview The semipermeable membrane for reverse osmosis applications consists of a thin film of polymeric material several thousand Angstroms thick cast on a fabric support. The commercial grade membrane must have high water permeability and a high degree of semipermeability; that is, the rate of water transport must be much higher than the rate of transport of dissolved ions. The membrane must be stable over a wide range of pH and temperature, and have good mechanical integrity. The stability of these properties over a period of time at field conditions defines the commercially useful membrane life, which is in the range of 3 to 5 years. There are two major groups of polymeric materials which can be used to produce satisfactory reverse osmosis membranes: Cellulose Acetate (CAB) and Composite Polyamide (CPA).
| Publisher | Hydranautics | File Format | PDF, requires Acrobat Rdr 5 |
|---|---|---|---|
| Date Published | January 2001 | Downloads | 261 |
| Format | White Papers | ||
| Topics | |||
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