3-phase and 2-phase decanter centrifuge for oil sludge separation

Decanter centrifuge is the major separation equipment for oil sludge treatment. Chemical dosing dewatering unit is usually used together with decanter centrifuges for flocculent and to remove the ultra-fine solids.

But in some cases, the clients do not need dewatering unit for chemical dosing. Recently, GN Solids Control followed up a project that the client said tor the dewatering unit they don’t think we need it for their project as the out coming water from the separator will be stored in an open pit and exposed to the sun to be naturally evaporated. Also the containerized 3-tank automatic chemical dosing system is not needed for the project. The client wants to choose separation equipment between the 3 Phase Separation Disc centrifuge Separator, or 14 inch (360mm) Decanter Centrifuge. They want to know what are the main differences between the two machines?


GN Solids Control makes both 2-phase and 3-phase 14 inch (360mm) Decanter Centrifuge separation unit. After 2-phase decanter centrifuge separation, the outputs are soil and liquid mixture.
After 3-phase decanter centrifuge, the outputs will be oil, water and soil.
The maximum solids control in the liquid for feeding to Disc centrifuge is less than 2%.
The maximum solids control in the liquid for feeding to 2-phase decanter centrifuge is less than 20%.
The maximum solids control in the liquid for feeding to 3-phase decanter centrifuge is less than 10%.
The maximum solids size allowable for all above centrifuge models are 20mm.

The client want GN Solids Control to suggest them which centrifuge separation does GN think is more suitable for their project. Per their oil sludge situation, the 3-phase decanter centrifuge can suit for the project.
And what is the capacity of the generator the client need to use to run the 14inch (360mm) Decanter Centrifuge?
And also they want to know is it possible to have 14 inch (360mm) Decanter Centrifuge inside container and on skid mounted so that we can only see the inlet and the three outlets.

GN Solids Control make heavy duty telescopic skid. The skid can be lower down to less than 2.5m for shipment and lift up to 2.8m during working for liquid flow to other places by gravity.

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