To maximize waste oil recovery, decanters are used in combination with oil skimmers. The decanter ensures the least possible percentage of water in the recovered oil by further separating oil and water, and returning the water to the skimming area.
The decanter is part of all Oil Skimmers, Inc. Oil Removal Systems to ensure efficient oil recovery when:
- The skimmed oil is frothy, such as that found in machine tool coolant, cold rolling mill coolant, or parts washing solutions The decanter gives any water collected a chance to further separate from the removed oil and be returned to the solution reservoir. This helps to conserve solution loss, decreasing the need for new solution purchases.
- The oil skimmer operates continuously, even when oil is no longer present When oil does not enter the skimming area for long periods of time, but the skimmer operates continually to safeguard against excessive discharge, the decanter will prevent an accumulation of water in your oil collection tank.
- Oily waste disposal costs and/or oil reclamation costs need to be controlled The decanter minimizes the quantity of water or solution accumulation in waste storage containers, thereby controlling costs.
The operating principle of the decanter uses the difference between the specific gravity of oil and water. The lighter oil will separate and float higher than the water. A specially engineered manifold incorporates an oil weir that allows the oil to overflow at this higher level while the water is continually discharged at a lower level for continuous, unattended decanting.
A sludge tray is provided to catch heavy solids. For easy clean-out, a 2-inch coupling is provided at the bottom of the tank, to which a valve can be attached. To assist in separation, an optional heat rod is available in either 120V or 240V.