METHOD FOR RECOVERING SILVER FROM PHOTOGRAPHIC FILM AND PHOTOGRAPHIC DEVELOPMENT WASTE SOLUTION

摘要

PURPOSE: To obtain a simple and low cost recovering method of silver excellent in the recovery rate of silver without using a new chemical, etc. ;CONSTITUTION: This recovering method of silver is composed of (a) a process for dipping a photographic film in a photographic development waste solution and stirring the photographic development waste solution until a silver- containing emulsion layer is removed from the film base of the photographic film and (b) a process for separating the photographic development waste solution containing the removed silver-containing emulsion layer from the photographic film, in which the silver-containing emulsion layer is removed.;COPYRIGHT: (C)1994,JPO