| 摘要 |
A METHOD AND FILTRATION MODULE (5) FOR PROVIDING GAS BUBLES WITHIN AN ARRAY OF VERTICALLY DISPOSED POROUS HOLLOW MEMBRANES (6) TO CLEAN THE OUTER SURFACES OF SAID MEMBRANES (6) WHEN THE ARRAY IS IMMERSED IN A LIQUID BY FEEDING (10) THE GAS BUBLES INTO THE ARRAY TRANSVERSELY OF THE VERTICAL AXIS OF THE ARRAY. IN ONE PREFERRED FORM, THE GAS BUBBLES ARE RETAINED WITHIN THE ARRAY USING A SLEEVE (11) SURROUNDING THE ARRAY (6) AT LEAST ALONG PART OF ITS LENGTH
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