Verfahren zur Reproduktion eines Membranelements und Membranmodul

Details

Veröffentlichungs-Nr.

EP4748482

Anmeldetag

29. Oktober 2025

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

IPC

B01D63/12, B01D65/10

Abstract

Provided are a method for reproducing a membrane element, which does not need to change the structure of a membrane element to be reproduced, can reduce waste caused by used membrane elements and save resources to be introduced, and can restore a separation function, and a membrane module using the resulting reproduced membrane element. A method for reproducing a membrane element for producing a reproduced membrane element using a part of a used membrane element (UE), the method comprising the steps of: cutting off at least both-side sealing parts of the used membrane element; unfolding membrane leaves (L) after cut-off and cutting off at least a peripheral-side sealing part (12) of the membrane leaves; replacing at least separation membranes (1) of the membrane leaves after unfolding and cut-off with new separation membranes; and obtaining a reproduced membrane element by forming both-side sealing parts and a peripheral-side sealing part that seal both-side ends and a peripheral-side end in an axial direction of the membrane leaves after replacement.

Anmelder

Firmen

Nitto Denko Corporation
Hydranautics

Land

🇯🇵 Japan