Set of membrane ultrafiltration modules or microfiltration membrane module, construction and method corresponding maintenance

The technique presented here relates to a membrane ultrafiltration modules or microfiltration of liquids such as water comprising at least one set of membrane modules extending substantially in a vertical plane and at least one duct, said modules each having an elongate module body provided at both opposite ends of the lower and upper removable end caps each having at least one connection to a stitching quilting said conduit.Selon this technique, said conduits of such an assembly extend substantially in said plane vertical.