HOLLOW FIBER MEMBRANE MODULE COMPRISING MINI HEADERS ARRANGED IN ZIGZAG MANNER AND MINI BUNDLES

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A module of the present invention comprises an integrated upper head from which permeated water is discharged, wherein the upper portion thereof has a bundle of fibers divided into a plurality of mini bundles to be potted at upper mini headers, and dead-end portions of the lower portions of the fibers are adhesively fixed to lower mini headers mounted at angles to each other inside an aerator box. Each mini bundle is transversely mounted with respect to the longitudinal axis of the box, the width of each lower mini header is larger than the width of the aerator box, and two or more continuous planar arrays of fiber are provided. If the lower mini headers are provided for vertical sliding in slots inside the aerator box, the length of the fiber becomes vertical so as to make the danger of damage due to shrinkage according to the passage of time be rare.