GN Separation is proud to announce the successful delivery of a containerized three-phase decanter centrifuge system to a valued client in Africa for oily sludge treatment applications. The system is specially designed to provide efficient oil-water-solid separation for various types of oily sludge generated from oilfields, refineries, tank cleaning operations, and industrial wastewater treatment processes.
At the core of the system is GN’s high-performance three-phase decanter centrifuge, which plays the key role in the entire oily sludge treatment process. Compared with conventional two-phase centrifuges, the three-phase decanter centrifuge is capable of simultaneously separating oil, water, and solids in a single continuous operation. This significantly improves treatment efficiency, reduces processing time, and maximizes oil recovery.
The centrifuge is designed with a robust structure and optimized internal configuration to handle challenging oily sludge with varying viscosity, oil content, and solid concentration. By utilizing high centrifugal force and precise differential speed control, the system achieves stable separation performance even under complex operating conditions.
To further improve separation efficiency, the containerized system also integrates supporting process modules including a pre-mixing tank, vibrating screen, and chemical dosing unit. The oily sludge is first heated and conditioned in the pre-mixing tank to improve fluidity and separation characteristics. Large particles and debris are then removed through the vibrating screen before the material enters the three-phase decanter centrifuge for final separation.
The chemical dosing system enhances demulsification and oil recovery performance, allowing the centrifuge to achieve cleaner recovered oil, reduced water contamination, and lower residual oil content in discharged solids. This integrated process helps clients reduce disposal costs while improving resource recovery and environmental compliance.
One of the major advantages of GN’s three-phase decanter centrifuge system is its containerized modular design. All major process equipment is integrated into compact container units, allowing easy transportation, rapid installation, and convenient operation in remote project locations. The modular structure also minimizes on-site civil work and reduces project commissioning time.
As a professional manufacturer of separation equipment and oily sludge treatment systems, GN Separation provides customized solutions based on actual sludge characteristics and project requirements. The successful delivery of this containerized three-phase decanter centrifuge system once again demonstrates GN’s capability in providing advanced, reliable, and environmentally sustainable oily sludge treatment solutions for global customers.




