What types of on-site silver recovery technologies are available?
There are a variety of on-site silver recovery technologies available. Understanding the size of your x-ray film processing operation, amount of effluent, and the silver discharge limit in your local area, will help you to determine the correct technology for your operation. For small volume users, silver recovery using metallic replacement is recommended. These cartridges are simple to use and maintain. Used cartridges must be sent to a silver refiner for further treatment and recovery of metallic silver. Electrolytic silver recovery is the most efficient technique for removing silver from silver-rich waste solutions. The type of electrolytic recovery unit chosen depends on the solutions being treated and the daily volumes requiring treatment. Often, metallic replacement cartridges need to be used as a secondary (tailing) recovery method subsequent to the electrolytic recovery equipment to ensure compliance with local sewer discharge limits. Electrolytic units are more costly than sim
