Abstract: Disclosed is a permselective membrane module comprising i) two permselective membrane elements formed of hollow fibers arranged substantially in parallel and bundled together and ii) a container, the two elements being arranged in the container longitudinally of the hollow fibers, wherein the respective elements comprise i) a feed tube disposed longitudinally of the hollow fibers and ii) a hollow fiber bundle covering the outer surface of the feed tube, the feed tube having a number of holes therein, and the hollow fibers having one end closed and the other end opened, wherein the feed tubes of the two elements communicate with each other via a connecting tube to form a conduit having one end opened and the other end closed, and wherein the container comprises i) an inner wall surrounding the two elements with a space, ii) a feed port provided at one end of the container in communication with the opened end of the conduit, iii) a permeate-liquid outlet facing the open end of the hollow fiber bundle of each el

Abstract: An inquiry respondinq apparatus receives an inquiry and stores a response to the inquiry in a first database. The apparatus determines whether or not the first database can be searched for the response to the inquiry, and when it is determined that the first database can be searched for the response to the inquiry, and when it is determined that the first database can be searched, a search for the response is performed. However, when it is determined that the first database cannot be searched, the apparatus transmits the inquiry to an external information processing device, and the apparatus receives a response to the inquiry which is transmitted from the external information processing device. Then, one of the response obtained by searching the first database and the response received from the external device is displayed on a display.

Abstract: An inquiry responding apparatus includes a receiving means for receiving an inquiry, a first database for storing a response to the inquiry, a determining means for determining whether or not said first database can be searched for the response to the inquiry, a searching means for searching said first database for the response to the inquiry when the determining means determines that said first database can be searched, a transmitting means for transmitting the inquiry to an external information processing device when said determining means determines that said first database cannot be searched, a second receiving means for receiving a response to the inquiry which is transmitted from the external information processing device, a displaying means for displaying one of the response obtained by said searching means and the response received by the second receiving means.

Abstract: A membrane separation apparatus of hollow fiber type which comprises a hollow fiber package body in a cylindrical shape comprising a core pipe or tube available as a passage for a fluid and a hollow fiber layer surrounding said core pipe or tube, said hollow fiber layer being formed by arranging hollow fibers having a selective permeability around and on the outer surface of said core pipe or tube, characterized in that (1) at least two perforated holes are provided on the wall of said core pipe or tube at the position near either one of the entrance or exit of said passage so as to flow the fluid into the hollow fiber layer therethrough and (2) the outer surface of the hollow fiber package body is covered by a film non-permeable to the fluid but leaving uncovered the edge portion of the outer surface opposite to the edge portion where said hole is present on the wall of said core pipe or tube.

Abstract: A hollow fiber membrane-type fluid separation apparatus useful for selective separation of fluids in various techniques such as gas permeation, liquid permeation, dialysis, ultrafiltration, reverse osmosis, etc.

Abstract: A permeation separation apparatus furnished with an assembly consisting essentially of a multiplicity of continuously hollow fibers which have a selective permeability to fluid, said hollow fibers being arranged on the surface of a core so as to constitute multiple layers of the hollow fiber lines wherein the hollow fiber lines are disposed in mutually and up- and downwardly intersecting relations and are crossed two or more layers, said each layer having a thickness equal to the diameter of a piece of hollow fiber, with a resin wall or resin walls provided at one terminal or at both terminals of said hollow fiber layers, each of said hollow fiber lines thrusting through at least one of said resin walls in a fluid-sealing condition to provide an opening outward, and said hollow fiber being disposed so as to satisfy the formula:.pi.D/10L.ltoreq.tan B.ltoreq.3.pi.

Abstract: A large-sized hollow fiber membrane separation apparatus suitable for treating a large amount of fluid without any defect, such as pressure loss of fluid, a concentration polarization phenomenon and the like, which comprises a cylindrical pressure container divided into two longitudinally aligning compartments by a dividing member at the substantial longitudinal center portion thereof; two columnar hollow fiber assemblies longitudinally aligned and placed in the compartments, respectively; said dividing member having functions to seal the compartments in a fluid-sealing condition, to feed fluid to be treated and to discharge fluid which does not permeate through the hollow fiber membrane during membrane separation in the compartments and being directly connected to external pipings through opening provided to the side wall of the container at the substantial longitudinal center portion thereof.