GN Solids Control is pleased to announce the successful delivery of a Hydrovac Slurry Separation System to a valued client in the United States. Designed with efficiency, sustainability, and reliability in mind, this advanced system is tailored to support hydrovac excavation operations where large volumes of slurry must be treated for reuse and safe disposal.
Hydrovac excavation is widely used across North America for utility daylighting, pipeline installation, and construction projects. These operations generate high volumes of slurry consisting of water, clay, silt, sand, gravel, and sometimes hydrocarbons. Efficient separation is essential to minimize disposal costs, recycle water, and comply with environmental regulations. GN’s Hydrovac Slurry Separation System addresses these challenges through a modular, step-by-step separation process.
System Modules:
Coarse Screening Module
The process begins with a coarse screen that removes oversized particles such as gravel and large debris. This initial step reduces wear on downstream equipment and ensures smooth system operation.
Fine Screening Module
After primary screening, slurry enters the fine screening module, where smaller solids like sand and silt are separated. GN’s fine shaker technology is designed with high G-force performance to achieve maximum solids removal while maintaining continuous slurry flow.
Desander Module
The slurry is then processed through a desander unit equipped with hydrocyclones. This module effectively separates medium-sized particles, typically down to 40 microns, ensuring that the recovered slurry is cleaner and more suitable for recycling.
Large Bowl Decanter Centrifuge Module
Finally, the slurry is treated with a high-capacity GN decanter centrifuge. With its large bowl design, the centrifuge is capable of separating fine solids down to 2–5 microns, delivering clarified water and high dryness in the separated solids. This stage maximizes recovery efficiency and supports environmentally responsible disposal.
Advantages of GN Hydrovac Slurry Separation System
High Efficiency: Multi-stage treatment guarantees optimal recovery of clean water and reduces waste volume.
Environmental Compliance: Enables contractors to meet stringent discharge standards and reduce the environmental footprint of hydrovac excavation.
Cost Savings: Recycling water reduces the demand for fresh water supply, while minimizing slurry hauling and disposal costs.
Robust & Modular Design: Each module is built with durable, wear-resistant materials, and the modular layout ensures flexibility for transport, installation, and expansion.
Proven Reliability: With experience serving clients worldwide, GN equipment is tested for demanding field conditions and offers stable long-term performance.
The deployment of this Hydrovac Slurry Separation System marks another milestone for GN Solids Control in supporting the North American excavation industry. By integrating coarse screening, fine screening, desanding, and centrifuge separation, GN delivers a complete solution that meets the dual goals of operational efficiency and environmental stewardship.
GN Solids Control will continue to work closely with clients worldwide, offering customized separation systems for hydrovac excavation, tunneling, mining, and oilfield applications.
For more information about GN’s slurry separation systems, please feel free to contact us any time.