GN Separation is pleased to announce the successful deployment of its GNLW554-VFD large-bowl decanter centrifuge at a major tank bottom oily sludge treatment project in Africa. The installation marks another milestone in the company’s expanding footprint in the African oil & gas and industrial wastewater treatment sectors.
Addressing a Persistent Industry Challenge
Tank bottom oily sludge — a complex mixture of crude oil residues, water, and solid sediments that accumulates in storage tanks — has long presented operators with significant environmental and economic challenges. Traditional treatment methods are often labor-intensive, inefficient, and costly, particularly in remote African field locations where infrastructure and logistics constraints add further complexity.
High levels of free fatty acids (FFA) and varying solid compositions further complicate separation processes, requiring equipment that can adapt dynamically to changing feedstock characteristics.
The GNLW554-VFD Solution
Deployed as the core separation unit in the treatment train, the GNLW554-VFD decanter centrifuge has demonstrated exceptional performance across key operational metrics:
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High-Capacity Bowl Design: The 550mm diameter large bowl delivers enhanced processing throughput while maintaining superior separation efficiency, enabling the client to handle substantial sludge volumes within tight project timelines.
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Variable Frequency Drive (VFD) Technology: The fully adjustable VFD control system allows operators to fine-tune bowl speed and differential speed in real time, optimizing separation performance for varying sludge consistencies, FFA levels, and oil recovery targets.
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Robust Construction: Built with wear-resistant materials and engineered for continuous-duty operation, the centrifuge excels in the harsh operating conditions typical of African oilfield environments.
Measurable Operational Benefits
Since commissioning, the system has delivered significant value to the client:
- Maximized Oil Recovery: High-G-force centrifugal separation efficiently recovers reusable crude oil from the sludge stream, turning waste into revenue.
- Reduced Waste Volume: Dramatically decreased sludge disposal volumes translate into lower hauling and landfill costs.
- Environmental Compliance: Cleaner effluent discharge helps the operator meet stringent local environmental regulations.
- Lower Operating Costs: Automated continuous operation reduces manual labor requirements and overall treatment costs per ton.
Expanding African Market Presence
This successful deployment reinforces GN Separation’s position as a trusted provider of solid-liquid separation solutions across Africa. The company’s equipment is already widely used in applications ranging from POME (Palm Oil Mill Effluent) treatment in West Africa to drilling mud processing and industrial wastewater projects continent-wide.
“Our GNLW554-VFD centrifuge was engineered specifically for challenging applications like tank bottom sludge treatment,” said a spokesperson for GN Separation. “The results from this African project validate our approach — robust equipment, intelligent controls, and real client value. We look forward to supporting more operators across the region in achieving their waste reduction and resource recovery goals.”
GN Separation is a leading manufacturer of decanter centrifuges, shale shakers, and complete solid-liquid separation systems serving the oil & gas, environmental, mining, and food processing industries worldwide.