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Reverse OsmosisDense and Porous Membranes Reverse Osmosis membranes are usually split into 2 types; Dense and Porous. Porous membranes work like a sieve and are mainly ceramic giving a swing/surface filtration effect. The pore sizes range from 0.1 0.5 microns. Dense types are the polymetril cellulose acetate chemical diffusion type as usually used in a standard reverse osmosis unit. To increase the concentrate conversion rate, spiral wound reverse osmosis membranes it is possible to add more stages. Derwent Water Services can offer the above to all our customers because we manufacture our own equipment. Many of our competitors import cheaper non RO membrane life is usually incalcuable due to the many differing parameters on each application. The production rate of any membrane systems is always expressed on lts/hr. How Do I Maintain My Reverse Osmosis Equipment Reverse Osmosis units manufactured by Derwent Water Services require very little maintenance. Derwent Water Services will offer safe training on our equipment or if preferred can provide a Service/Maintenance package as explained at :- Reverse Osmosis Membrane Cleaning When cleaning fouled reverse osmosis membranes it is usually prudent to send one membrane to Derwent for diagnostics. This enables us to pre-determine the exact cause of fouling and to ensure steps are put into place to stop it happening again. Derwent Water Services have the capabilities to diagnose all the major reverse osmosis membrane fouling agents. To clean the RO membranes usually the following applies.
Derwent Water Services have produced a range of membrane cleaning agents at the correct strength for cleaning the above reverse osmosis membranes. Please see - Please note all the above is a guide only. Please call us for further information.
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