Blue Flower

In the world of municipal sludge management, finding an efficient and environmentally friendly solution for sludge dewatering is crucial. GN's latest product, The GNDL303 screw press is a perfect fit for this challenge, offering a cost-effective and sustainable approach to sludge dewatering in US municipalities.

The GNDL303 screw press utilizes the principle of screw extrusion to achieve solid-liquid separation. Through the powerful squeezing force generated by the varying screw diameter and pitch, as well as the minute gap between the floating ring and fixed ring, the sludge is compressed and dewatered. This process not only ensures efficient water removal but also reduces the volume of the sludge, making it easier to handle and transport.


The GNDL303 screw press comes equipped with a fully automatic control cabinet, flocculation modulation box, sludge thickening and dewatering device, and liquid collecting tank. The automatic control technology allows for fully automatic flocculation operation, continuously completing sludge thickening and squeezing. The collected filtrate liquid can then be recycled or discharged safely.


The advantages of the GNDL303 screw press are numerous. It is suitable for a wide range of sludge types, including oily sludge, and can operate continuously and automatically without the risk of clogging. Additionally, it boasts low investment and operation costs, as well as energy-saving and environmentally friendly features. Its compact design also minimizes the required footprint, making it a practical solution for space-constrained municipal facilities.


Lastly, the GNDL303 screw press can dewater sludge under aerobic conditions, which avoids the release of phosphorus from anaerobic sludge dewatering. This further enhances its environmental benefits and makes it a preferred choice for municipalities looking for a reliable sludge dewatering solution.


In conclusion, the GNDL303 screw press is an excellent choice for US municipal sludge dewatering,

In the quest for efficient and sustainable solutions for municipal sewage treatment, GN Separation Equipment Co., Ltd. has emerged as a leading provider of industrial separation equipment. Recently, we were proud to supply 3 sets of GNLW364 Dewatering Decanter Centrifuges for an overseas municipal sewage treatment project.

The GNLW364 Dewatering Decanter Centrifuge is a T series decanter centrifuge with a beach angle of 8.5 degrees, designed for maximum efficiency in dewatering and thickening applications. This centrifuge is particularly suitable for the demanding requirements of municipal and industrial wastewater sludge treatment, where high dryness and clarity are paramount.

The GNLW364 Dewatering Decanter Centrifuge excels in separating materials with large particle sizes, high solid-liquid density differences, low viscosity, and high concentrations. Its high treatment capacity ensures that large volumes of sludge or wastewater containing fine particles can be processed efficiently. For materials with fine particles, the addition of flocculants is often required to aggregate the particles into larger ones, which can then be effectively dewatered using the T series decanter centrifuge.

At GN Separation, we pride ourselves on our ability to provide turnkey solutions for material dewatering processes. In addition to Dewatering Decanter Centrifuges, we offer a comprehensive range of separation and conveying equipment, enabling us to provide customized solutions that cover material transportation, classification, and dewatering.

As a subsidiary of Hebei GN Solids Control Co., Ltd., GN Separation has been a trusted name in the separation industry since 2007. Our three factories spanning 110,000 square meters in China, along with our branch offices in the United States and Australia, ensure that we can provide timely and comprehensive service to our global customers.

Holding National High-Tech Enterprise status, GN Separation maintains robust management systems and has been certified by the American API Quality Management System for 14 consecutive years since 2010. We also hold ISO9001, ISO14001, and ISO45001 certifications from the China Classification Society.

With our commitment to excellence and dedication to providing cutting-edge solutions, GN Separation remains the preferred choice for municipalities and industries seeking reliable and efficient dewatering solutions.

In today's fast-paced oil and gas industry, the demand for efficient and reliable separation equipment is paramount. GN Solids Control, a leading manufacturer of decanter centrifuges, has risen to the challenge by introducing the GNLW363D-FHD, a fully hydraulic drive decanter centrifuge tailored specifically for Asia's rigorous conditions.

Powered by a hydraulic bowl and scroll drive system, the  offers unparalleled flexibility and adaptability. This system utilizes two hydraulic oil circuits to drive both the conveyor and bowl of the centrifuge, eliminating the need for complex mechanical transmissions. The result is a centrifuge that is not only highly efficient but also exceptionally easy to operate and maintain.

A collaboration between GN Solids Control and our Swiss supplier, a pioneer in centrifuge hydraulic driving systems, has ensured that the GNLW363D-FHD meets the highest international standards. This partnership has allowed us to develop a centrifuge that is specifically designed to handle heavy mud in high-temperature environments.

The full hydraulic drive system consists of three key components: the hydraulic pump unit, the bowl drive hydraulic motor, and the scroll drive. The hydraulic pump unit feeds hydraulic oil to both the scroll and bowl drives via two separate and independently operating circuits. This ensures that the bowl's rotational speed and the scroll's differential speed can be adjusted independently, continuously, and infinitely variable during operation.

The pump unit is driven by an electric motor and contains all the necessary setting devices, safety valves, and pressure gauges. This comprehensive design allows for precise control over the centrifuge's performance, ensuring optimal separation efficiency under varying conditions.

The compact skid design of the GNLW363D-FHD makes it easy to transport and install on any rig site. This, coupled with its exceptional performance, makes it a highly sought-after solution for oil and gas exploration projects in Asia.

In conclusion, the GNLW363D-FHD fully hydraulic drive decanter centrifuge is a cutting-edge solution that offers unmatched flexibility, reliability, and performance. It is the perfect choice for Asia's demanding oil and gas industry.

On 13th May, GN will proudly exhibit at IFAT MUNICH 2024, a globally renowned trade fair for environmental technology, water, and wastewater management. Held from May 13 to 17, 2024, at the New International Exhibition Center, Messe M√ľnchen GmbH, in Munich, Germany, IFAT MUNICH is a must-attend event for industry professionals worldwide.

At Hall No. A1, Booth 104-B, GN will showcase its latest innovations, including the 9-inch Decanter Centrifuge. This mini centrifuge, with a bowl diameter of 9 inches (220mm), is designed for industrial applications where space is limited or capacity requirements are small. Its compact design makes it a popular choice for solids-liquid separation in various applications. Moreover, it is considered the perfect tool for experimental testing with decanter centrifuges. GN offers this centrifuge in three configurations: fixed gearbox drive, fully hydraulic drive, and variable frequency drive, ensuring flexibility and adaptability to different operational needs.

Additionally, GN will display its Sludge Vacuum Pump, also known as a solids transfer pump. This pneumatic slurry transfer vacuum pump is ideal for transferring liquids, slurries, and solids. With its high vacuum loading capacity, it can handle tough environments for solids or sludge transfer, offering superior performance and minimal maintenance. The pump is capable of handling materials with high gravity and density, including dry solids or slurries with solids content up to 80%.

At IFAT MUNICH 2024, GN aims to demonstrate its commitment to providing cutting-edge solutions in environmental technology and wastewater management. We invite you to visit our booth to learn more about our products and services. We look forward to meeting you and discussing how GN can contribute to your environmental initiatives.

Hebei GN Solids Control Co., Ltd. has established itself as a leading manufacturer of solids control and waste management equipment, with over 15 years of expertise in the field. GN stands tall among the global giants in solids control equipment manufacturing. Operating from three factories spanning a total area of 110,000 square meters in China, we also maintain branch offices with service capabilities in the United States and Australia.

Recognized as a National High-Tech Enterprise, GN prides itself on its robust management system. Since 2010, we have proudly upheld the American API Quality Management System Certification for 14 consecutive years and have maintained certifications from the China Classification Society for ISO9001, ISO14001, and ISO45001 over several years. Additionally, our solids control equipment is certified by EU CE, ATEX, and International IECEx.

To ensure seamless production and operation, GN employs an ERP Cloud + CRM Cloud management system, guaranteeing digital control over the production process and quality traceability. Our products are highly sought after internationally, with approximately 70% being exported to over 70 countries worldwide. GN remains committed to providing exceptional solids control and waste management solutions to the global market.

GN Solids America, a branch of GN Solids Control, is excited to announce its participation in the 2024 Offshore Technology Conference (OTC) from May 6 to May 9, 2024. The event, held annually in Houston, Texas, USA, brings together the brightest minds in the offshore oil and gas industry to discuss innovations and advancements.

At NRG Center, booth 1926, GN Solids America will showcase a range of products designed to improve solids control and fluid recovery during drilling operations. The exhibition lineup includes:

ViST Vacuum Shale Shaker: This innovative shale shaker offers wide applicability for Oil-Based Mud (OBM), Synthetic-Based Mud (SBM), and Water-Based Mud (WBM). It reduces waste and recovers fluids effectively in both onshore and offshore environments. One of its key advantages is the ability to replace high-G drying shale shakers without additional screen consumption. The ViST Vacuum Shale Shaker boasts a compact design, easy installation without welding, and adjustable suction and discharge times to suit different drilling conditions. It can be connected to 2-3 shakers with a single air supply, making it a highly versatile and cost-effective solution.

Decanter Centrifuge: GN Solids America designs and manufactures decanter centrifuges and three-phase centrifuges tailored to specific separation tasks. Using resilient, high-quality materials, GN centrifuges offer superior performance. Additionally, GN's expertise in designing PLC and electrical control systems gives it a competitive edge in measuring and control technology.

Sludge Vacuum Pump: Also known as a solids transfer pump, this pneumatic slurry transfer vacuum pump is ideal for liquid, slurry, and solids transfer. Its efficient design ensures smooth and reliable operation.

Shaker Screens: GN's automated production line for shale shaker screens utilizes CNC punching machines, robot welding, and injection molding machines to produce high-quality screens with consistent performance. GN Solids Control's global network of branches and partners ensures technical support, consignment support, and fast delivery to the international drilling industry.

Visit GN Solids America at booth 1926 at the 2024 Offshore Technology Conference in Houston, Texas, to learn more about these products and how they can enhance your drilling operations. We look forward to meeting you there!