[EN] MEMBRANE STACKS AND THEIR USES<br/>[FR] EMPILEMENTS DE MEMBRANES ET LEURS UTILISATIONS
申请人:FUJIFILM MFG EUROPE BV
公开号:WO2021198432A1
公开(公告)日:2021-10-07
A stack of ion exchange membranes suitable for water purification comprising a plurality of anion exchange membranes (AEMs) and a plurality of cation exchange membranes (CEMs), wherein the colour properties of the AEMs are visibly different to the colour properties of the CEMs. The invention also provides a process for making membrane stacks in which the likelihood of there being two consecutive membranes of like charge is reduced. Furthermore, it is easy to identify whether there are two consecutive membranes of like charge present in the stacks.