| 摘要 |
System for desalinating water by means of reverse osmosis, by means of an installation which comprises one or more filtering chambers 7 with a reverse-osmosis membrane (diaphragm), which consists in maintaining, in the filtering chambers with osmosis membrane, constant pressure on the side of the water to be treated, whilst, on the side of the product water, the pressure is varied as a function of the variations in the filtering conditions of the membrane. Use is made of an installation which comprises a silex bed filter 3, high- pressure pumping equipment 6 with recovery turbine, one or more filtering chambers with reverse-osmosis membrane 7, and a tank for storing product water 9. Between the filtering chamber or chambers 7 and the storage tank 9 there is a valve 8 which controls the pressure on the product-water side of the filtering chambers 7. <IMAGE>
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