| 摘要 |
<p>Unblocking filter membranes such as those employed in the field of microfiltration and ultrafiltration. The objective is to obtain an unblocking of the membrane, acting both at the surface and in depth, over a short period. According to the invention the process comprises at least one stage consisting in causing a fluid to pass through the membrane, from the filtrate recovery chamber (34) towards the feed chamber (33) for the mixture to be filtered in a reverse direction to the direction of filtration, the fluid flow being produced by placing the said feed chamber (33) under abruptly reduced pressure in relation to the recovery chamber (34), the said fluid consisting of a mixture of air and water at equilibrium, capable of being decompressed especially within the membrane, to give white water during the decompression. <IMAGE></p> |
