| 摘要 |
Disclosed is an apparatus for processing spent photographic wash water, so that it may be recycled for reuse in the washing apparatus involving passing the spent wash water through an oxidation reaction apparatus to convert any thiosulfate salts in the spent wash water to sulfate salts, and then returning the sulfate water to the developing apparatus for reuse as wash water. In the reactor, the thiosulfate salts in the wash water react in the presence of an oxidation catalyst with oxygen from spent drying air passed to the reactor.
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