公开(公告)号：US4313808A

公开(公告)日：1982-02-02

申请号：US159567

申请日：1980-06-16

Applicant: Noboru Idemoto ,  Minoru Yamada ,  Mamoru Tashiro ,  Sachio Matsushita

Inventor： Noboru Idemoto ,  Minoru Yamada ,  Mamoru Tashiro ,  Sachio Matsushita

IPC: G03D13/00 ,  B01D61/44 ,  C02F1/469 ,  C25C1/20 ,  G03C5/00 ,  G03C5/395 ,  G03C7/00 ,  B01D13/02

CPC classification number: B01D61/44 ,  B01D61/46 ,  G03C5/3956 ,  B01D2311/2626 ,  C02F1/469 ,  C02F2103/40

Abstract: A method of regenerating a waste photographic processing solution (e.g., a waste developing solution or a waste bleaching-fixing solution) by electrodialysis utilizing ion exchange membranes, which uses an electrodialyzer characterized by the arrangement of ion exchange membranes employed therein that a space between a cathode and an anode is partitioned by cation exchange membranes and anion exchange membranes alternately arranged, and an anode compartment is provided in a first place in the direction from the anode to the cathode, and wherein there is further provided a plural number of desalting compartments through each of which the waste photographic processing solution is passed, each of which compartments is partitioned by a cation exchange membrane on the cathode side and by an anion exchange membrane on the anode side, and an equal number of concentrating compartments, through each of which a specific solution for the concentrating compartment is passed, and each of which compartments is partitioned by an anion exchange membrane on the cathode side and by a cation exchange membrane on the anode side) arranged alternately in such a way that a desalting compartment is positioned on the side farthest from the anode, wherein a concentrating compartment that it is partitioned by cation exchange membranes on both sides thereof is provided adjacent to the cathode side of the desalting compartment partitioned on the side farthest from the anode, and a cathode compartment is provided adjacent to the last concentrating compartment, and wherein a common solution of electrolytes is supplied to both the cathode and the anode compartments of the electrolyzer and circulated therethrough.

Abstract translation: 通过使用离子交换膜的电渗析来再生废弃照相处理溶液（例如，废弃显影液或废弃漂白固定溶液）的方法，其使用电渗析器，其特征在于其中使用的离子交换膜的排列， 阴极和阳极被交替排列的阳离子交换膜和阴离子交换膜隔开，并且阳极室在从阳极到阴极的方向上首先设置，并且其中还设置有多个脱盐室通过 其中每个废纸照相处理溶液通过，每个隔室由阴极侧的阳离子交换膜和阳极侧的阴离子交换膜和相等数量的浓缩隔室分隔开，每个隔室中的 浓缩室的具体溶液通过， 在阳极侧由阴离子交换膜和阳极侧的阳离子交换膜分隔），以使脱盐室位于离阳极最远侧的方式交替排列，其中浓缩室为 在阳离子交换膜的两侧分隔设置在与离阳极最远侧隔开的脱盐室的阴极侧相邻的位置，并且在最后的浓缩室附近设置阴极室，其中，电解质的常见溶液为 供应到电解槽的阴极室和阳极隔室并循环通过。