GN Separation will participate in Pollutec Lyon 2025, one of the world’s most influential exhibitions dedicated to environmental protection and energy transition. The event will take place from October 7–10, 2025, at the Eurexpo Lyon Exhibition Center. Together with its French partners, GN Separation will present its advanced sludge dewatering equipment, including the Decanter Centrifuge and Sludge Screw Press, at Hall 3, Booth E185. Continue reading →

Centrifugal separation technology is one of the most widely applied technologies in various industries, including pharmaceuticals, chemicals, metallurgy, textiles, environmental protection, and food processing. It utilizes centrifugal force to achieve phase separation in mixtures such as liquid-solid, liquid-liquid, or liquid-liquid-solid suspensions and emulsions. Based on the physical properties of the material and the specific separation requirements, decanter centrifuges can be selected to achieve efficient and reliable separation. These systems are favored for their simple structure, high efficiency, and purely physical separation process, which ensures the integrity and quality of the separated materials. Continue reading →

GN Separation has successfully delivered a batch of decanter centrifuges to a prominent European client involved in large-scale wastewater treatment. This project highlights the company’s dedication to providing customized industrial equipment that meets rigorous international standards and addresses complex operational demands. Continue reading →

GN Separation has recently completed the assembly of two GNLWS364 3-phase decanter centrifuges, designed for efficient solid-liquid-liquid separation. These high-performance units offer reliable and precise separation for various industries, ensuring high efficiency and consistent operation. Continue reading →

GN Separation is pleased to announce the recent successful shipment of high-performance solids control equipment to a valued overseas client. This delivery reflects our ongoing commitment to providing advanced, durable, and cost-effective solutions for global drilling operations. Continue reading →

GN Separation has recently completed the assembly of its GNLWS554 3-phase decanter centrifuge, which is now ready for shipment to the United States. The system will be deployed for the treatment of oily sludge—an industrial byproduct that poses significant environmental and operational challenges.

The Role of Three-Phase Decanter Centrifuges in oil sludge treatment

Oily sludge, generated during oil extraction, refining, and storage, contains a complex mixture of oil, water, and solids. Traditional treatment methods often fall short in achieving effective separation, resulting in high disposal costs and environmental compliance risks.

GN’s 3-phase decanter centrifuge provides a reliable, one-step solution to efficiently separate oil, water, and solids. Utilizing high-speed centrifugal force, the GNLWS554 accelerates the gravitational separation process, enabling oil recovery and significant reduction in waste volume.

Designed to perform in harsh industrial conditions, the GNLWS554 offers enhanced separation efficiency and robust operational reliability, making it an ideal alternative to conventional treatment systems.

Key Features of the GNLWS554 3-phase decanter centrifuge

1. Dual-Motor Drive with VFD Precision Control
   The GNLWS554 features a dual-motor design with independent VFD control for both bowl and scroll. This allows operators to precisely adjust the differential speed for optimal separation across varying feed conditions.
2. Tungsten Carbide Wear Protection
   To withstand the abrasive characteristics of oily sludge, all critical components—such as scroll flights and discharge ports—are protected with tungsten carbide tiles and sleeves. This significantly extends service life and reduces maintenance costs.
3. Adjustable Centripetal Pump System
   The built-in centripetal pump allows for on-the-fly adjustment of the liquid phase interface. Operators can easily control the separation boundary between the oil and water phases, providing flexibility for different feed compositions and compliance standards.

Wide-Ranging Applications Across Industries

In addition to oily sludge treatment, GN’s three-phase decanter centrifuges are widely used in various sectors:

Food & Beverage: Fat and solid separation in dairy, edible oil, and starch processing

Chemical & Pharmaceutical: Recovery of catalysts, purification of emulsions, and byproduct separation

Municipal Wastewater: Grease and sludge separation in sewage treatment plants

Mining & Minerals: Dewatering tailings and recovering minerals from slurry

The GNLWS554’s performance-proven design—featuring a dual-motor drive, wear-resistant materials, and real-time interface control—ensures stable, high-efficiency operation in all these demanding environments.

As industries face growing regulatory pressures and rising treatment costs, GN Separation’s three-phase decanter centrifuge provides a sustainable, cost-effective solution for sludge and waste management.
For more information, visit GN Separation’s website or contact our team directly.

GN Separation has recently completed the delivery of a Hydraulic Drive Decanter Centrifuge (Model: GNLW364-FHD) to an overseas starch processing facility. Powered by Viscotherm’s advanced hydraulic technology, this system delivers efficient, high-performance solid-liquid separation, particularly for high-viscosity applications. Continue reading →