GN Separation has recently finalized the fabrication and full delivery of a complete sludge dewatering screw press system for an overseas client. The turnkey solution comprises the GNDL302 sludge dewatering screw press and the GNSJY2000 chemical dosing unit, delivering high-efficiency, eco-friendly solid-liquid separation and sludge treatment capabilities for the client’s operational needs.
At the heart of this project lies the GNDL302 screw press sludge dewatering machine, a next-generation extrusion dewatering equipment developed by GN Separation. Adopting advanced screw extrusion technology, the equipment enables uninterrupted continuous solid-liquid separation. It generates powerful progressive squeezing force through variable screw diameters and pitches, paired with the precision narrow gaps between floating rings and fixed rings. This structural design efficiently removes moisture from raw sludge, producing high-dryness sludge cake with stable and reliable dewatering results.
Superior to conventional sludge dewatering equipment, the GN screw press series boasts distinct competitive advantages: a compact and space-saving structure, low operational energy consumption, stable long-term running performance, and simple daily maintenance. Equipped with a self-cleaning floating and fixed ring system, the equipment effectively avoids clogging failures, supporting continuous round-the-clock operation with minimal water consumption. Thanks to these reliable features, GN screw presses are widely applicable to diverse scenarios, including municipal sewage treatment, industrial wastewater treatment, food processing, chemical production and other sludge disposal and management projects.
2026.07.29 | Polymer Dosing Unit
In this tailored project, the GNSJY2000 polymer dosing unit is perfectly integrated with the screw press dewatering system to achieve precise, stable polymer preparation and automatic dosing. Scientific chemical conditioning significantly optimizes sludge flocculation effects and greatly improves the overall efficiency of solid-liquid separation. By synergizing accurate chemical dosing and mechanical extrusion dewatering, the integrated system achieves superior dewatering performance and more stable operational output.
GN Separation’s integrated dewatering system organically combines professional chemical conditioning technology with high-performance solid-liquid separation equipment, catering to diversified and customized treatment demands of global clients. Traditional mechanical separation equipment can generally filter and remove suspended particles of 2 to 5 microns in wastewater, yet struggles with ultra-fine particulate impurities. The collaborative operation of GN’s chemical dosing unit and high-efficiency separation equipment effectively captures and separates ultra-fine suspended particles, helping enterprises meet stringent environmental discharge standards and upgrade their overall wastewater treatment capacity.
Prior to delivery, the entire integrated system underwent rigorous factory inspection and performance testing at GN Separation’s manufacturing base. Every component and functional module was strictly verified to fully comply with technical specifications and the client’s customized requirements. Throughout the project implementation process, GN’s professional engineering team provided one-stop technical support, covering personalized equipment configuration scheme design, on-site operation guidance, and complete technical document delivery.
As a specialized and experienced manufacturer of solid-liquid separation equipment, GN Separation consistently focuses on delivering customized, high-quality separation solutions for global industrial clients. Backed by core independent technology, reliable equipment quality and rich cross-border project experience, the company strives to empower various industries with more efficient, cost-effective and sustainable wastewater and sludge treatment solutions.
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Published: 31 July 2026
GN Separation is proud to announce a key milestone in its global expansion roadmap: GN Solids Mena, our wholly-owned UAE subsidiary, has officially relocated to its brand-new office in Jebel Ali, Dubai. This strategic upgrade marks a brand-new starting point for deepening local engagement and delivering premium, localized services to clients across the Middle East region.
The launch of the new Jebel Ali office is far more than a workspace upgrade for our local team. It lays a solid foundation for more efficient communication, faster market response, and more robust one-stop support for all regional customers and partners. Over the past year, GN Solids Mena has completed full local legal registration in the UAE and carried out rigorous preliminary preparations for regional layout. After months of meticulous planning and steady development, our localized sales, technical support and after-sales service teams are now fully settled and operational in Dubai, ready to deliver proximity-based cooperation and tailored solutions for local clients.
This new office opening fully demonstrates GN Separation’s long-term commitment to expanding global local presence and optimizing customer experience. With a dedicated on-the-ground team stationed in the Middle East, we are able to gain in-depth insights into local market demands and industry characteristics. We deliver efficient technical docking and full-cycle project support, covering every link from pre-project consultation, equipment selection and solution customization to on-site installation, commissioning and comprehensive after-sales service, ensuring reliable and hassle-free project operation for our customers.
Designed for professionalism and customer-centricity, the new GN Solids Mena office integrates multiple functional scenarios, including business negotiation, technical seminar, solution design and customer training. Boasting a comfortable working atmosphere and complete professional supporting facilities, it serves as an ideal communication platform for our technical engineers and customers to discuss project demands, exchange industry insights and co-develop optimized solid-liquid separation solutions.
Strategically located in Jebel Ali — one of the Middle East’s most core industrial and logistics hubs — the new office enjoys superior geographical advantages and convenient global transportation links. Supported by permanent local sales engineers and senior technical experts in Dubai, GN Solids Mena can provide the entire Middle East region with quicker project communication, more responsive technical assistance and more convenient on-site service support.
“We are thrilled to embark on this new development chapter for GN Solids Mena,” remarked the GN Separation team. “This Dubai office acts as a vital bridge that connects GN’s global technological strengths and advanced manufacturing capabilities with the localized market needs of the Middle East. We sincerely welcome customers and partners from all walks of life to visit our new premises, conduct in-depth exchanges and explore mutually beneficial cooperation opportunities.”
The official operation of GN Solids Mena’s Dubai office further improves GN Separation’s global service network layout. We look forward to meeting you in Dubai and building a successful future together!
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Published: 24 July 2026
GN Separation has successfully commissioned and put into operation a heavy-duty decanter centrifuge with a 30-inch (760 mm) bowl diameter for a mining slurry concentration project in China. Deployed for continuous, automated solid-liquid separation, the advanced separation equipment effectively boosts customer’s slurry concentration efficiency, cuts logistics and transportation expenditures, and maximizes the recovery of valuable mineral resources.
The 30-inch decanter centrifuge deployed for this project stands as one of the largest-capacity models in GN Separation’s product lineup. Engineered for high-volume industrial scenarios, the equipment integrates superior processing throughput and outstanding separation precision, making it perfectly suited for rigorous solid-liquid separation workflows in mining, mineral processing, tailings treatment and other heavy-duty industrial applications.
Adopting high-speed rotary bowl design, the centrifuge generates powerful centrifugal force to accelerate the rapid sedimentation and stratification of fine mineral particles. The precise speed differential between the rotating bowl and screw conveyor enables continuous, automatic conveying of concentrated solid materials to the discharge outlet, while clarified liquid is discharged from the opposite end. This fully automated, 24/7 continuous operation drastically minimizes manual intervention and ensures stable, consistent long-term running performance.
Tailored to address the high abrasiveness of mining slurry, the centrifuge adopts premium wear-resistant structural materials for enhanced durability. Its duplex stainless steel bowl delivers exceptional mechanical robustness and superior corrosion resistance to adapt to harsh mining operating conditions. The screw flights are fitted with replaceable tungsten carbide tiles, which greatly extend equipment service life when handling highly abrasive mineral particles. Key wear-prone areas are additionally structurally reinforced, lowering routine maintenance frequency and ensuring reliable long-term operational stability.
Energy efficiency and operational flexibility are core design highlights of the equipment. Equipped with a state-of-the-art variable frequency drive (VFD) control system, the centrifuge allows on-site operators to flexibly adjust bowl rotation speed, differential speed and torque parameters in response to real-time fluctuations in slurry properties. This intelligent adjustable control optimizes overall separation performance, while effectively reducing energy consumption and long-term operational costs.
Compared with traditional gravity thickening equipment widely used in the mining industry, GN’s decanter centrifuge boasts comprehensive competitive advantages, including a compact footprint, ultra-fast processing speed, full automation and stable separation results. The high-concentration underflow produced by the equipment simplifies downstream processing procedures, reduces material handling and transportation costs, and realizes more efficient extraction and utilization of valuable minerals from raw slurry.
As a professional and reliable manufacturer of industrial separation equipment, GN Separation offers a complete range of decanter centrifuges with bowl diameters spanning from 9 inches to 30 inches, covering full-scenario application needs from laboratory testing to large-scale heavy-duty industrial production. Its high-performance separation systems have been widely applied across global industries including mining, oil and gas, wastewater treatment, chemical processing, food production and environmental protection.
The successful commissioning and stable operation of this domestic mining slurry concentration project further validates GN Separation’s strong capability in delivering customized, high-reliability separation solutions for complex and demanding industrial scenarios. Driven by sustained R&D investment, advanced manufacturing capabilities and stringent quality control systems, GN Separation remains committed to developing high-efficiency, cost-effective separation equipment, helping global clients enhance production efficiency, cut operational costs and achieve sustainable resource recycling and utilization.
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Published: 19 July 2026
Improving Mining Slurry Management with GN Large Bowl Decanter Centrifuge Technology
Mining operations generate large volumes of slurry during mineral processing, tailings management, and water recovery processes. Efficient solid-liquid separation plays an important role in improving process efficiency, recovering valuable water resources, and supporting more sustainable mining practices.
For a domestic mining slurry concentration application, GN Separation supplied a GN 30-inch bowl diameter decanter centrifuge, designed to provide continuous separation performance for large-scale slurry treatment requirements.
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Published: 17 July 2026
Efficient Solid-Liquid Separation Solution for Challenging Oil Sludge Applications
Tank bottom sludge management has always been a major challenge for oil storage terminals and refineries. Due to long-term storage, crude oil tanks gradually accumulate a complex mixture of heavy hydrocarbons, water, sand, corrosion products, and fine solids at the bottom of the tank. This sludge is difficult to handle, requires significant manpower, and often creates high disposal costs.
To address these challenges, GN Separation supplied a GNLW554-VFD Large Bowl Decanter Centrifuge for an oil sludge treatment project in Africa, providing an efficient solution for continuous solid-liquid separation and sludge volume reduction.
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Published: 10 July 2026
GN 22-Inch Decanter Centrifuge Deployed for African Tank Bottom Oily Sludge Remediation
GN Separation has fully completed the manufacturing and factory acceptance testing of the GNLW554-VFD decanter centrifuge, which is slated for delivery to an African oil and gas client. Tailored for tank bottom oily sludge treatment, this advanced separation equipment will enable the customer to recover usable crude oil, cut waste discharge volume and enhance overall environmental compliance for on-site operations.
High-Performance Oily Sludge Separation Solution
The GNLW554-VFD is a core model of GN Separation’s 22-inch decanter centrifuge series, engineered for uninterrupted industrial solid-liquid separation. It delivers consistent, high-efficiency performance for rigorous processing scenarios, including oily sludge remediation, refinery waste treatment, drilling waste management and industrial wastewater purification.
Equipped with a variable frequency drive (VFD) system, the centrifuge features flexible and adjustable operational parameters. On-site operators can precisely regulate the bowl rotating speed and differential speed based on real-time feed sludge conditions, ensuring optimal separation results and stable long-term operation for diverse and complex sludge materials.
Optimized Working Principle for Tank Bottom Sludge Treatment
In standard tank bottom oily sludge treatment workflows, the decanter centrifuge is deployed as a core processing unit after sludge pre-treatment procedures such as dilution, heating and chemical conditioning. When pre-treated sludge enters the high-speed rotating bowl, powerful centrifugal force rapidly separates solid sediments from liquid phases.
The built-in screw conveyor continuously conveys separated solid impurities to the discharge outlet, while the purified liquid is discharged independently for subsequent oil recycling and further refinement. Adopting a fully continuous operating mode, the equipment maintains stable separation efficiency even when handling high-viscosity, complex oily sludge with fluctuating properties.
Core Advantages of Decanter Centrifuge Sludge Treatment Technology
Decanter centrifuge separation technology stands out in oily sludge remediation for its dual benefits of resource recovery and waste reduction. It effectively separates crude oil from solid sediments and water phases, maximizing the recovery of reusable oil resources. Meanwhile, it drastically reduces the volume of hazardous oily sludge, lowering subsequent transportation and harmless disposal costs, and minimizing the environmental footprint of oilfield waste.
Thanks to these prominent strengths, GN decanter centrifuges have become essential core equipment for modern oily sludge treatment systems, widely adopted by global oil producers and professional environmental service providers.
Customized Full-Set Sludge Treatment Solutions by GN Separation
Leveraging decades of professional experience in solid-liquid separation technology, GN Separation provides one-stop, turnkey solutions for oily sludge treatment. The complete system covers pre-treatment modules, chemical dosing units, two-phase decanter centrifuges, three-phase separation centrifuges, material transfer pumps and integrated modular processing systems.
Our professional engineering team can design and configure customized process schemes according to clients’ specific sludge properties, on-site working conditions and project treatment targets, ensuring tailored and efficient waste remediation solutions.
Market Expansion in Africa & Global Service Commitment
The upcoming shipment of the GNLW554-VFD decanter centrifuge marks another milestone in GN Separation’s layout of the African market. It further validates the company’s reliable equipment quality and professional service capabilities in the global oil and gas industry.
Moving forward, GN Separation will continue to iterate and upgrade high-efficiency, high-reliability separation technologies and equipment. We remain committed to helping global clients optimize operational efficiency, maximize resource utilization, and meet increasingly stringent international environmental protection standards.
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Published: 10 July 2026