ELECTROLYSIS FOR RECOVERY OF SILVER FROM PHOTOGRAPHIC LIQUID WASTE

摘要

PURPOSE:To rapidly recover silver of good quality in one electrolyzing apparatus, by mixing the liqud bleaching fixer and the liquid fixer of color photographic liquid waste with each other at a predetermined mixing ratio, introducing the resulting mixture into an electrolyzing device, and electrolyzing said mixture therein. CONSTITUTION:The liquid bleaching fixer and the liquid fixer or color photographic liquid waste are separately reserved in conditioner tanks 1, 2 for raw water. They are transferred by predetermined amounts to another conditioner tank 5 by quantitative pumps 3, 4 are mixed with each other at a mixing ratio in the range of 1:10-10:1. The liquid mixture is agitated by the operation of an agitator 7 with a motor 6. The uniformly mixed silver-contg. mixed liquid waste is introduced into an electrolyzing device 9 and electrolyzed therein to recover silver. By this method, silver can be easily and stably recovered.