GN Solids Control recently completed the successful commissioning of a containerized sludge dewatering system in the Middle East, specifically designed for treating washing slurry derived from oil-contaminated soil. This project highlights GN’s capability in providing advanced separation equipment for environmental remediation applications.
Background: The Challenge of Treating Oil-Contaminated Soil
In many industrial and oilfield zones, soil contamination caused by crude oil and other hydrocarbons poses a significant environmental hazard. One effective remediation method is soil washing, where contaminated soil is washed with water and surfactants to separate the pollutants from soil particles. However, this process generates a slurry that contains both fine solids and emulsified oil residues, requiring further treatment before disposal or reuse.
GN’s Solution: Containerized Sludge Dewatering System
To address this challenge, GN delivered a containerized sludge dewatering system, which includes integrated components for mobility, protection, and ease of deployment. The key equipment in this system is the GNLW654-VFD high-capacity dewatering centrifuge, a robust machine engineered for handling large volumes of slurry with high solid content.
The centrifuge plays a vital role in the final stage of the treatment process. After the washing slurry passes through a dissolved air flotation (DAF) sedimentation tank, which removes a portion of the free oil and suspended solids, the remaining surface sludge still contains a significant amount of water and fine particulates. The GNLW654-VFD centrifuge is used to dewater this floating sludge, effectively reducing its volume and preparing it for disposal or further treatment.
Features of the GNLW654-VFD Dewatering Centrifuge
Large Capacity: With a 22-inch bowl diameter, the centrifuge is capable of processing high volumes of slurry, ideal for large-scale soil remediation projects.
Variable Frequency Drive (VFD): Allows precise control of bowl speed and differential speed, optimizing performance for various types of sludge.
Durable Construction: All wetted parts are made of wear-resistant stainless steel, ensuring reliable operation in harsh conditions.
Containerized Design: The entire system is housed in a standard container, making it easy to transport, install, and operate in remote or challenging environments.
Project Outcome
After site commissioning, the system achieved stable operation and delivered excellent separation performance. The moisture content of the discharged solids was significantly reduced, and the treated liquid met the customer’s discharge or recycling standards.
This project demonstrates GN’s commitment to supporting environmental remediation efforts in oil-producing regions. With growing attention on sustainability and pollution control, GN Solids Control continues to provide practical and efficient solutions for sludge dewatering and waste treatment challenges worldwide