 | Reloadable Steel Wool Recovery Canisters. |  |
 | RELOADABLE CANISTERS. Steel Wool Silver Recovery Canisters Featuring Replaceable Steel Wool Inserts. How These Canisters Work... As used fixing solution or wash water passes through the steel wool fibers, the silver ions in solution exchanges with the iron ions in the steel wool. The silver ions combine with sulfur and forms a precipitate that falls to the collection chamber in the bottom of the canister as 'sludge'. The 'up-flow' design of the Rotex ReLoadable canister allows most of the precipitate to fall freely and not plug up the steel wool. Some of the silver-bearing precipitate is likely to adhere to the steel wool fibers and both the used steel wool and sludge are smelted in a reverberatory furnace to recover the silver. A single pound of steel wool may recover as much as 6 to 9 Troy Ounces of silver in normal operation. Time of contact between the solution and the steel wool is very important for the exchange to take place. If the solution passes through too quickly some silver will not be trapped. A very high flow may even wash out the sludge. At the recommended flow rates, solution entering the steel wool at 50ppm (parts per million) also defined as 50 mg per litre - will usually give up approximately 95% of its silver and exit the canister well below 5 ppm. Where environmental protection requires that the solution be stripped to 1 or 2 ppm, a second canister is connected in series to the first. Use a taller model for the secondary canister. Smaller bucket is 3.5 gallons, 10.25" high, larger bucket is 5.0 gallons, 14.25" high. Handle folds down when not in use so if you're limited in space can be left down until needed. |
| Type C (Coarse Grade) - For use with graphic arts and X-ray fixers with 'Part B' hardeners; color paper
bleach-fix and E-6 color slide fix. Type M (Medium Grade) - For use with other black & white fixers without 'Part B' hardeners; C-41 Fixers and stabilizers; fixers for microfilm and Cine films; wash water. To prevent discharge sludge emitted by these canisters, (which could potentially plug your discharge sewer drain) see the "Photo Sludge Filter" below". Peel-off cover for easy refilling Gasketed cover for transporting Tubing connectors for both 1/2" and 5/8" i.d. tubing. Tubing connectors for 3/4" i.d. tubing Recyclable HDPE plastic construction 1/2" male pipe thread x 3/8" i.d. tubing adapter to connect to cubetainer hose Wheeled dolly for size -24 Fill pails FP3, FP5 & FP6 for batch filling |
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| Photo Sludge Filter. | |
 | Prevent discharge sludge from Steel Wool Recovery Canisters (above) from plugging your discharge sewer drain! The Photo Sludge Filter (PSF) is to be placed as an inline filter on a silver recovery system utilizing steel wool replacement columns. The effluent will be directed into the filter via the left barb. The liquid will then flow down the effluent flow tube where the steel wool particles will be drawn to the magnetic element located in the bottom of the filter housing. The non magnetic particles will settle due to gravity. The particles that do not settle will then be filtered by the screen filter before the liquid flows out to the drain. All particulate matter collected will be stored inside the housing until removed by user. The specific placement of this filter should be after the final SR column and before any other inline hardware (i.e. flush system, check valve, etc.) The filter should be placed before the SRU drain tie-in on direct plumb applications or before the effluent container. |
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