Aldec G3

Success stories of Aldec G3 decanter centrifuges

Sludge dewatering centrifuge - a set of innovative parameters

Alfa Laval unparalleled decanter centrifuge technology has paved the way for a series of ground-breaking innovations, all based on proven technology renowned for reliability. Together, these ensure a unique combination of better performance and lower energy consumption, resulting in lower operating costs than ever before.

The Aldec G3 decanter for sludge dewatering is built around the Slimline design – a breakthrough in decanter centrifuge performance and capabilities. The smaller conveyor diameter makes room for more liquid in the pond, and allows higher bowl wall pressures, resulting in either drier cake or using less polymer.

Patented Alfa Laval Power Plates also effectively reduce the power consumption of Aldec G3 decanter centrifuges, making a big contribution to cost savings.

Every Aldec G3 sludge dewatering decanter is equipped with a PLUS control package as standard, pre-installed and tested in conjunction with each particular unit. The combination of PLUS controls with the Aldec G3 ensures the best possible performance, keeping costs for installation, commissioning, operation and maintenance to a minimum.

Sludge dewatering centrifuge - feature highlights

• Power plates/tubes and slimline conveyor design
• Critical components made of wear-resistant material
• Fully open feed zone for improved separation 360° solids discharge to avoid blocking
• Baffle disc provides higher capacity and drier cake solids
• Steep or shallow cone configuration for effective separation of any type of slurry
• Selection of conveyor designs available for use with different types of slurry
• Different forms of wear protection for conveyor flights, to suit any processing requirements
• Complete, fully enclosed cleaning-in-place (CIP)

The features that make the difference

Everything you need to meet your challenges today – and tomorrow

With more than 60 years of experience in solid-liquid separation, Alfa Laval knows what it takes to deliver high-performance solutions for the wastewater industry. Packed with features unique to Alfa Laval, our decanter centrifuges provide improved efficiency, reliability, and serviceability with each advancement.

PowerTubes

Liquid outlet with pond depth regulation and energy recovery 

PowerTubes adjustable outlets are designed to release the liquid tangential to the rotating direction, supporting the bowl rotation and thereby recovering energy, and minimizing power consumption.

SuperPond

Increased separation performance and energy efficiency

Increasing the pond depth inside the bowl creates a larger volume, leading to longer retention time and improved separation performance. The SuperPond design features a deeper pond and smaller solids outlet diameter, resulting in high solids dryness and clean centrate at high flow rates, as well as low energy consumption.  

VecFlow™

Rotating feed zone 

Low turbulence in the decanter centrifuge bowl is essential for high separation performance and low power consumption. The VecFlow™ rotating feed zone gives you maximum performance with minimal turbulence.

FlightGuard

Robust wear protection for conveyor flights 

FlightGuard wear protection consists of tiles welded to the conveyor of your decanter centrifuge, providing robust wear resistance and prolonged uptime in highly abrasive applications.

FeedProtect

Feed zone with replaceable wear protection 

The uniquely designed FeedProtect feed zone ensures gentle product acceleration and minimal turbulence, resulting in low abrasion and power consumption. The FeedProtect design is equipped with replaceable wear-protection liners, ensuring high uptime of your decanter centrifuge.

VecFlow™ Technology

Optimize your wastewater sludge dewatering and sludge thickening

VecFlow™ technology delivers outstanding performance in wastewater sludge thickening and dewatering. The unique VecFlow™ feed zone of Aldec G3 decanters minimizes turbulence and reduces power consumption by up to 30% compared to traditional decanter centrifuges.

Minimal turbulence for maximum performance 

Aldec G3 decanter centrifuges equipped with VecFlow™ technology for sludge thickening gives you maximum performance with minimal turbulence. Alfa Laval’s unique VecFlow™ sludge centrifuge feed zone reduces turbulence by more than 80% compared to traditional decanter centrifuges and cuts acceleration power by 40-50%.

Gentle acceleration

A traditional feed zone injects the sludge radially into the decanter bowl, continuously disturbing the internal flows and causing turbulence. A VecFlow™ feed zone, on the other hand, gives the feed a completely different flow path since it accelerates the sludge tangentially when entering the bowl of the decanter centrifuge.

Sludge centrifuges with better separation performance

Apart from reducing total power consumption in sludge thickening, the low turbulence also improves separation performance. The separation is more effective than in a traditional decanter centrifuges, with less break-up of flocs. Additionally, the efficient acceleration to full speed reduces wear on the conveyor.

Cut OPEX

Depending on your specific sludge-thickening requirements, you may wish to minimize polymer consumption, increase the dryness of the cake or boost capacity. The high separation performance in thickening and low power consumption leads to a low total cost of ownership and very short payback times. You often get a full return on your investment in less than one year.

At the forefront of sludge thickening technology

PowerTubes feature on sludge centrifuges has become the preferred choice for wastewater plants around the world

The PowerTubes liquid discharge recovers kinetic energy from the effluent. By directing the flow tangentially as it exits the decanter bowl, the decanter bowl is pushed in the direction of rotation, causing a significant reduction in energy consumption.

Proven sustainability improvements with Aldec G3 decanter centrifuges

Aldec G3 sludge centrifuge is an excellent tool for improving your plant’s environmental sustainability

The lower power consumption leads to reduced CO₂ emissions. The high dry solids content reduces transportation requirements and landfill volumes, alternatively fuel consumption in incineration ovens.