As a manufacturer of decanter centrifuge and oil sludge treatment system, GN solids control can also produce three phase decanter centrifuge and three phase disc centrifuge, which can be used for oil sludge separation unit.
3 phase decanter centrifuge is a solids liquid liquid separation machine, in the complete oil sludge treatment process, one unit of 3 phase decanter centrifuge can replace the design of decanter centrifuge + 3 phase disc centrifuge. Both of the design can separate solids, water and oil, to get the dry solids for disposal or landfill, pure water can be sent to waste water treatment facility and recovered oil can be sold.

How to select the design with 3 phase decanter centrifuge or 3 phase disc centrifuge?
1)    When the user required treatment result is not high, they can accept more oil in the solids. The recovered oil is not so clean and more oil in the water, they can select the 3 phase decanter centrifuge. But if the recovered oil required with BS&W below 2% ~3%, then they should use 1 unit of decanter centrifuge plus 1 unit of 3 phase disc centrifuge. The benefit of 3 phase decanter centrifuge is that the easy maintenance and operation compared with disc centrifuge.
2)    When the budget is limit, one unit of 3 phase decanter centrifuge is with competitive price than one unit of decanter centrifuge and one unit of 3 phase disc centrifuge.

3)    Less power consumption, for 5m3/h oil sludge treatment system, the power consumption of 3 phase decanter centrifuge is 27.5KW, the power consumption of one unit of decanter centrifuge and one unit of 3 phase disc centrifuge is 66.5KW.
Both of the 3 phase decanter centrifuge and 3 phase disc centrifuge need to work with proper chemicals to archive better separation result.