Relying on strong local partnerships, GN Separation (GN Solids) has successfully completed the installation and commissioning of a sludge dewatering decanter centrifuge at a municipal wastewater treatment plant in France. The equipment is now operating smoothly, with performance fully meeting design expectations, and has received high recognition from the end user.
Strong Local Partnership Ensures Project Success
GN’s local partner in France played a key role in this project. With proven capabilities in equipment installation, commissioning, and maintenance support, the partner ensured that the GN decanter centrifuge was installed efficiently and brought into stable operation within a short timeframe.
This collaboration not only guaranteed the success of the French project, but also provides a solid foundation for GN decanter centrifuges operating across France and the wider European market, ensuring long-term operational reliability and responsive technical support.
GN T Series Dewatering Decanter Centrifuge
The installed equipment is a GN T Series Dewatering Decanter Centrifuge, specifically designed for sludge dewatering and thickening applications. The T Series features a beach angle of 8.5 degrees, which creates a longer drying zone in the conical section of the bowl. This design significantly improves dewatering efficiency and enables the discharge of drier solids, particularly in municipal and industrial wastewater treatment processes.
The GN T Series decanter centrifuge is widely used for maximum dewatering requirements, especially for materials with:
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Large particle size
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High solid–liquid density difference
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Low viscosity
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High solid concentration
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High treatment capacity requirements
For sludge or wastewater containing fine particles, flocculants are typically added to aggregate fine solids into larger flocs, which are then effectively dewatered by the T Series decanter centrifuge.
Typical Applications
GN dewatering decanter centrifuges are suitable for a wide range of materials, including but not limited to:
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Municipal sewage and sludge
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Environmental protection wastewater
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Industrial wastewater (chemical, printing & dyeing, steel-making, precision casting, etc.)
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Construction mud, tunnel mud, and mine wastewater
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Oily sludge, oil sand separation, oil sludge, coal tar
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Drilling mud and sand washing water
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River sludge, lake sludge, and water plant sludge
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Mineral processing slurries such as kaolin, calcium carbonate, bentonite, silica, titanium dioxide, calcium sulfate, and barium sulfate
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Aquaculture wastewater and organic wastewater
Key Technical Features of GN T Series Decanter Centrifuge
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8.5° beach angle design: Extends the drying zone and improves solid dryness.
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Duplex stainless steel bowl and end caps (SUS2205 or SUS2304): Manufactured by centrifugal casting for superior strength, corrosion resistance, and stress control compared to traditional welded structures.
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CNC-formed screw blades: Higher conveying efficiency than traditional drawn screw designs.
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Optimized screw pitch and beach structure: Separates sedimentation and dewatering zones for higher capacity, clearer centrate, and lower energy consumption.
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Tungsten carbide wear sleeves at solid discharge ports: Extremely high wear resistance and long service life.
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Flexible weir plate adjustment: Allows easy control of liquid pool depth to balance dryness and clarity under different operating conditions.
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Advanced bearing and lubrication systems: SKF premium bearings with optional semi-automatic or fully automatic lubrication systems.
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Comprehensive monitoring and protection system: Real-time monitoring of speed, vibration, temperature, torque, and motor current, with automatic protection against overload, blockage, or abnormal operation.
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Compact dual-motor arrangement: Saves space and improves maintenance accessibility.
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Explosion-proof control options available: Including ATEX, IECEx, and other international certifications.
Complete Dewatering Solutions from GN
Beyond supplying individual decanter centrifuges, GN Separation provides complete turnkey solutions for sludge and slurry dewatering processes. Leveraging GN’s extensive product portfolio in separation, conveying, and classification equipment, GN can deliver integrated systems covering:
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Material transportation
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Classification and screening
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Thickening and dewatering
Looking Forward
The successful commissioning of this project in France further demonstrates GN’s technical strength, product reliability, and international service capability. With experienced local partners and proven equipment performance, GN Separation continues to expand its footprint in Europe, delivering efficient and reliable solid–liquid separation solutions to municipal and industrial customers worldwide.