Patent ID: 7294267

Claim:
A hollow fiber membrane module unit comprising: a plurality of hollow fiber membrane modules, wherein a said hollow fiber membrane module comprises: a plurality of sheet-form hollow fiber membranes; and an anchoring member that fastens the plurality of sheet-form hollow fiber membranes substantially parallel to each other while leaving at least one end of the sheet-form hollow fiber membranes open, wherein the anchoring member comprises having a first side and an opposing second side, a rectangular parallelepiped section having a substantially rectangular parallelepiped shape on the first side where the outer surfaces of the hollow fiber membranes are exposed, and a cylindrical section having a substantially cylindrical shape on the second side and having an exposed second end face, where the at least one end of the hollow fiber membranes left open is at said second end face, wherein a plate-like member having a hole through which the cylindrical section passes is provided on a side of the sheet-form hollow fiber membranes perpendicular to sheet surfaces, so that the hollow fiber membrane modules are secured in place by the plate-like member, and wherein said unit includes a water collecting cap that engages with the cylindrical section, wherein the plate-like member is sandwiched between the cylindrical section and the water collecting cap.