Efficient Wastewater Treatment with GN Separation’s Dewatering Decanter Centrifuge

At GN Separation, we pride ourselves on providing advanced solutions for wastewater treatment, and our dewatering decanter centrifuge is a prime example. Designed specifically to meet the rigorous demands of both municipal and industrial wastewater treatment, our T series decanter centrifuge stands out in terms of performance, reliability, and efficiency.

Why Choose GN’s T Series Dewatering Decanter Centrifuge?

The GN T series dewatering decanter centrifuge, with a beach angle of 8.5 degrees, is specifically engineered for dewatering and thickening applications. It excels in handling various materials, including those with large particle sizes, significant density differences between solid and liquid, low viscosity, high concentration, and high treatment capacity. The T series ensures higher dryness in the discharged solids compared to traditional methods.

One of the key advantages of our decanter centrifuge is its versatility. It is effectively used in a wide range of applications, such as:

  • Drilling Mud and Oily Sludge
  • Environmental Protection Sewage
  • Cutting Fluid and Sand Washing Water
  • Mineral Washing and Industrial Wastewater
  • Municipal Sewage and River Sludge

Key Features and Specifications

Our T series dewatering decanter centrifuge offers several models to suit different capacity needs. Here are some specifications:

Model Bowl Diameter Bowl Length Max Bowl Speed Max G Force Main Motor Power Beach Angle
GNLW-224FT 220 mm 924 mm 5099 RPM 3200 G 11 KW 8.5°
GNLW-364FT 360 mm 1512 mm 3986 RPM 3200 G 22/30/37 KW 8.5°
GNLW-454FT 450 mm 1890 mm 3452 RPM 3000 G 37/45/55 KW 8.5°
GNLW-554FT 550 mm 2310 mm 3123 RPM 3000 G 55/90 KW 8.5°
GNLW-654ET 650 mm 2730 mm 2873 RPM 3000 G 90/110 KW 8.5°
GNLW-764A 760 mm 3328 mm 2612 RPM 2900 G 110/132/160 KW 8.5°

Advanced Engineering for Optimal Performance

The GN T series decanter centrifuge is built using high-quality materials and cutting-edge manufacturing techniques:

  • Durable Construction: The bowl and shaft caps are made from duplex stainless steel (SUS2205 or SUS2304), superior to SUS304 and SUS316 in terms of performance and corrosion resistance.
  • Enhanced Screw Design: The screw blade, formed by CNC equipment, offers higher slag conveying efficiency. The gradual change type screw blade improves the dewatering efficiency, making the solids drier.
  • Optimized Beach Angle and Pitch: This design separates the dewatering zone from the sedimentation zone, leading to clearer separated liquid and larger processing capacity.
  • Energy Efficiency: The deeper liquid pool design reduces kinetic energy loss, enhancing energy efficiency while maintaining high clarity in the discharged liquid.
  • Wear Resistance: The solid discharge port is equipped with a tungsten carbide sleeve for high wear resistance, ensuring long service life.
  • Convenient Adjustability: The overflow weir plate allows for flexible adjustment of the liquid pool depth to meet various material requirements.

Safety and Monitoring

Safety and operational efficiency are paramount in our designs. Our centrifuges come with comprehensive monitoring and alarm systems, ensuring automatic protection against overload, short circuit, and other operational anomalies. The system monitors parameters such as centrifuge speed, bearing temperature, vibration, and motor current in real-time, providing timely alerts for any abnormalities.

Custom Solutions and Support

Beyond providing high-quality dewatering decanter centrifuges, GN Separation offers turnkey solutions for the entire material dewatering process. This includes solutions for material transportation, classification, and dewatering, tailored to meet the specific needs of our clients.


The GN T series dewatering decanter centrifuge is a powerful tool in the fight against wastewater pollution, offering superior performance, durability, and efficiency. Whether dealing with municipal sewage, industrial wastewater, or any other challenging material, our centrifuge is designed to deliver optimal results, ensuring cleaner water and a healthier environment.

For more information on our products and services, please visit our website or contact our sales team. Let GN Separation help you achieve your environmental goals with our state-of-the-art dewatering solutions.

Exploring the Capabilities of GN Solids Vacuum Pump: Revolutionizing Industrial Waste Management

At GN SEPARATION, we take pride in our new solutions for industrial waste management. One of our flagship products, the GN Solids Vacuum Pump, also known as the sludge vacuum pump, is an innovation in the field of solids transfer. This vacuum loading solids transfer pump is fully powered by compressed air, making it an efficient and reliable solution for transferring solids, powder, slurry, and sludge.

What Makes GN Solids Vacuum Pump Stand Out?

The GN Solids Vacuum Pump is designed to be compact, robust, and incredibly efficient. It utilizes a powerful vacuum of 25″ hg to load materials and is capable of delivering them over distances of up to 500 meters. Available in three different capacities (10 m3/h, 20 m3/h, and 40 m3/h), these pumps can also be customized as Group Pump Units on a single skid, offering versatile and scalable solutions for various industrial needs.

Key Applications

The versatility of the GN Solids Vacuum Pump makes it suitable for a wide range of applications, including:

  • Thickener De-sludge: Efficiently removes sludge from thickeners.
  • Tunneling & TBM Applications: Ideal for tunnel boring machines and excavation projects.
  • Sump and Shaft Cleaning: Cleans sumps and shafts effectively.
  • Tailings and Ash Pond Cleaning: Handles the cleaning of tailings and ash ponds in power stations.
  • Oil Spill Capture and Transfer: Captures and transfers oil spills efficiently.
  • Hazardous Waste Recovery: Safely recovers and transfers hazardous waste.
  • Drilling Mud and Cuttings Transfer: Transfers drilling mud and cuttings in oil and gas operations.
  • Mining Slurries and Offal Transfer: Moves mining slurries and waste materials.
  • Bulk Transfer: Handles bulk transfer operations, both loading and unloading.

Working Principle of the GN Solids Vacuum Pump

The GN Solids Vacuum Pump operates on a simple yet powerful principle. Compressed air is fed into the pump, creating a high vacuum inside the pump tank. This vacuum draws materials into the tank through the suction line. After a few seconds, the valve changes the air direction to create positive pressure, pushing the material out of the pump tank through the discharge line.

The GNSP-40A, a larger model, offers both manual and automatic modes, while the smaller models, GNSP-10A and GNSP-20A, operate automatically. This pneumatic operation ensures safety and reliability, especially in hazardous environments like the oil, gas, and coal industries, where explosion-proof equipment is essential.

GN Vacuum Cleaner for Industrial Waste

In addition to the GN Solids Vacuum Pump, we offer the GN Mini Vacuum Cleaner, designed for tough industrial clean-up jobs. This mobile and lightweight suction tool is air-operated, producing a high vacuum for efficient suction and can switch to positive pressure for discharge. Operators can set up automatic suction and discharge cycles, enhancing efficiency and ease of use.


The GN Solids Vacuum Pump and GN Mini Vacuum Cleaner are at the forefront of industrial waste management technology. Their robust design, efficient operation, and versatility make them invaluable tools for a wide range of applications. At GN SEPARATION, we are committed to providing innovative solutions that meet the evolving needs of our clients.

For more information on our products and how they can benefit your operations, please visit our website or contact our sales team. We look forward to helping you achieve greater efficiency and effectiveness in your waste management processes.

Exploring the Efficiency and Benefits of the Slant Plate Clarifier by GN Separation

At GN Separation, we are dedicated to providing solutions for liquid and solids separation. One of our flagship products, the Slant Plate Clarifier, also known as the inclined plate clarifier, exemplifies our commitment to innovation and efficiency in wastewater treatment.

What is a Slant Plate Clarifier?

The Slant Plate Clarifier is a type of liquid and solids separation equipment. It functions by allowing a mixture of solids and liquid, sometimes pre-flocculated, to enter through a trough into the clarifier. As the mixture flows upward between a series of slant plates, the solids settle onto the plate surfaces and slide down by gravity into a sludge collection hopper. The clarified liquid then flows through orifice holes and exits at the top of the clarifier.

Advantages of the Slant Plate Clarifier

Compared to traditional settling tanks, the Slant Plate Clarifier offers significant advantages:

  • Cost-Effectiveness: The design and operational efficiency of the Slant Plate Clarifier make it a more cost-effective solution.
  • Small Footprint: The slant plates provide a large effective settling area within a compact space, making it ideal for facilities with limited space.
  • Energy Efficiency: It requires less energy to operate compared to decanter centrifuges, contributing to lower operational costs.
  • Ease of Maintenance: With minimal moving parts, the Slant Plate Clarifier is easy to maintain, reducing downtime and maintenance costs.
  • Continuous Operation: Designed for continuous 24/7 operation, it ensures reliability and consistent performance.

Applications of the GN Slant Plate Clarifier

The versatility of the GN Slant Plate Clarifier makes it suitable for a wide range of applications, including:

  • Potable Water Clarification: Ensuring clean and safe drinking water.
  • Industrial Process Water: Treating water used in various industrial processes.
  • Oil and Gas Industry Wastewater Treatment: Handling wastewater generated in oil and gas operations.
  • Sand Filter Backwash Water Treatment: Managing backwash water from sand filters.
  • Metal Finishing Wastewater Treatment: Treating wastewater from metal finishing processes.
  • Mining Industry: Clarifying water used in mining operations.
  • Groundwater Treatment: Treating groundwater to remove contaminants.
  • River Dredging Treatment Plants: Managing water from dredging activities.
  • Other Wastewater Treatment Plants: Versatile enough to be used in various other wastewater treatment facilities.

Why Choose GN Slant Plate Clarifier?

The GN Slant Plate Clarifier stands out due to its:

  • Large Effective Settling Area: Providing superior separation efficiency.
  • Gravity Separation: Utilizing natural gravity forces, leading to lower power consumption.
  • Chemical Dosing Flexibility: Can operate with or without flocculants, offering operational flexibility.
  • Minimal Maintenance: Few moving parts, typically only an auger for sludge transfer, make it easy to maintain.
  • Safe and Easy Operation: Designed for continuous and safe operation, 24 hours a day, 7 days a week.

At GN Separation, our Slant Plate Clarifier represents the forefront of efficient and reliable liquid and solids separation technology. Whether you are in the water treatment, industrial, oil and gas, or mining industry, our clarifier offers a robust solution to meet your needs.

For more information, contact GN Separation today to learn how our Slant Plate Clarifier can benefit your operations.

GN Separation: GNLW364 Sludge Dewatering Centrifuges Used in Overseas Municipal Sludge Dewatering Project


In the realm of wastewater treatment, GN Separation is at the forefront, delivering efficient and reliable solutions for sludge dewatering. Recently, three GNLW364 sludge dewatering centrifuges were deployed in an overseas municipal sludge dewatering project, showcasing their superior performance and versatility. The GN T series decanter centrifuge, renowned for its innovative design and exceptional dewatering capabilities, is the cornerstone of this project.

GN T Series Decanter Centrifuge

The GN T series decanter centrifuge features a beach angle of 8.5 degrees, specifically designed for dewatering and thickening purposes. This design is particularly effective for meeting the stringent dewatering requirements of municipal and industrial wastewater sludge. The T series decanter centrifuge excels in handling materials that require easy separation, such as those with large particle sizes, significant solid-liquid density differences, low viscosity, high concentration, high treatment capacity, and higher dryness than clarity.

Key Features and Advantages

  1. Optimized Beach Angle: The 8.5-degree beach angle extends the drying and dewatering area, enhancing the overall dewatering performance. This results in much drier solid materials being discharged.
  2. Superior Material Construction: The centrifuge’s shaft caps and bowl are made from duplex stainless steel SUS2205 or SUS2304, offering superior performance compared to SUS304 and SUS316. This construction avoids intergranular corrosion and ensures a complete residual stress release.
  3. Efficient Screw Blade Design: The screw blade, formed by CNC spiral blade equipment, provides higher slag conveying efficiency. The gradual change type blade can significantly improve transport and pressing efficiency, resulting in drier solids.
  4. Enhanced Separation Efficiency: The large beach angle and medium pitch, combined with the BD baffle plate, optimize the separation of the dewatering zone from the sedimentation zone. This configuration results in clearer separated liquids and larger processing capacities with reduced energy consumption.
  5. Wear Resistance: The solid discharge port features a wear-resistant tungsten carbide sleeve, ensuring high durability and longevity.
  6. Flexible Liquid Pool Adjustment: The overflow weir plate design allows for easy and flexible adjustment of the liquid pool depth, catering to various material dryness and clarity requirements.
  7. User-Friendly Design: For small models, the collection box cover is supported by a gas spring for safety and ease of access. Larger models feature a labor-saving lid opening device, enabling a single person to lift the lid, reducing labor intensity and facilitating maintenance.
  8. Advanced Bearing System: The main bearings are equipped with a hydraulic disassembly structure, significantly reducing the tension required for bearing removal, thus minimizing the risk of damage.
  9. Precision and Balance: Each centrifuge undergoes high-precision CNC machining and multiple dynamic balance treatments to ensure stable operation at high speeds.
  10. Robust Screw Propeller: The screw propeller, protected by replaceable wear-resistant alloy plates, offers long service life and easy maintenance. Certain models feature an open-type screw blade, enhancing processing capacity.
  11. Compact Motor Arrangement: The two motors are positioned at one end of the centrifuge, saving space and simplifying operation and maintenance while preventing motor damage from material leakage.
  12. Premium Bearings and Lubrication Systems: The centrifuge uses high-end SKF series bearings and can be equipped with an automatic lubrication system to ensure reliable lubrication and extended bearing life.
  13. Comprehensive Monitoring and Alarm System: The centrifuge is equipped with a monitoring system that tracks various operational parameters in real time. It provides automatic protection and alarms in case of abnormalities, ensuring the safety of both personnel and equipment.
  14. Advanced Electric Control Panel: The stainless steel electric control panel is equipped with globally recognized VFD, PLC, HMI, and other components. GN can also provide VFD control panels with explosion-proof certifications.

Applicable Materials

The GN T series dewatering decanter centrifuge is versatile and can handle a wide range of materials, including:

  • Drilling mud
  • Environmental protection sewage
  • Oily sludge
  • Cutting fluid
  • Sand washing water
  • Mineral washing water
  • Various industrial wastewaters (e.g., chemical, printing and dyeing, construction, tunnel, mine)
  • Organic and aquaculture wastewater
  • Municipal and river sludge
  • Water plant and lake sludge
  • Kaolin grading
  • Calcium carbonate, bentonite, silica
  • Titanium dioxide, calcium sulfate, barium sulfate
  • Conductive film glass polishing solution
  • Aluminum hydroxide, cryolite, silicate
  • Oil sand separation, landing oil, oil sludge
  • Coal tar, inorganic fertilizer
  • Chinese medicine extraction (e.g., taxus chinensis, honeysuckle, licorice)
  • Salt crystals clarification, concentration, and dehydration


The deployment of three GNLW364 sludge dewatering centrifuges in the overseas municipal sludge dewatering project underscores the effectiveness and reliability of GN Separation’s T series decanter centrifuges. With their advanced design, superior material construction, and user-friendly features, these centrifuges are well-equipped to handle the demanding requirements of municipal and industrial wastewater treatment, ensuring optimal performance and efficiency.