PROCESSING METHOD FOR BLACK-AND-WHITE PHOTOSENSITIVE MATERIAL

摘要

PURPOSE:To convert a spent developing soln. used to develop a black-and-white photosensitive material into solid residue of small volume and to facilitate the treatment of the residue by arranging heating members as electrodes or between electrodes and by heating the spent soln. with the heating members. CONSTITUTION:Heating members 1 are arranged as electrodes or between electrodes and a spent developing soln. 32 used to develop a black-and-white a photosensitive material contg. azaindenes is heated by allowing the members 1 to generate heat. Ceramic members contg. at least one kind of element selected among the groups II-VI elements of the Periodic Table and at least one kind of element selected among the group VIII elements as constituent elements are used as the heating members 1. The spent soln. can be converted into solid residue of small volume and the handling of the residue is facilitated.