发明授权
US4343892A Method and apparatus for silver recovery during photographic processing 失效
摄影过程中银回收的方法和装置

Method and apparatus for silver recovery during photographic processing
摘要:
The efficiency of silver recovery from photographic processing solutions is improved by the installation of a silver recovery water tank between the fix or blix tank and the wash water tank, which is provided with a mechanism for maintaining the silver concentration of said recovery tank at a substantially constant value, said mechanism comprising a detecting means for measuring the amount of the photographic material treated by the processing line involved and a means to supply water thereto operatable by signal from said detecting means.
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