In {HEAD ~ a process} for treating {TAIL ~ used, photographic fixer solution} having a pH of about 3.5 to 7.0 and containing from 0.74 to 1.3 moles of spent alkali thiosulfate therein and containing dissolved silver by the addition of a chemical reagent thereto, the improvement comprising, 
In { HEAD ~ a process } for treating { TAIL ~ used , photographic fixer solution } having a pH of about 3.5 to 7.0 and containing from 0.74 to 1.3 moles of spent alkali thiosulfate therein and containing dissolved silver by the addition of a chemical reagent thereto , the improvement comprising ,
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH