I-Dec
The Alfa Laval decanter centrifuge range of i-Dec is ideal for continuous sludge dewatering and thickening in municipal and industrial wastewater treatment, as well as potable water treatment. It is engineered for reliability, cost-effectiveness and simple operation, offering medium capacity and dry solids.
Experience fundamental solid-liquid separation in a cost-efficient way
- Low power consumption
- Highly reliable operation
- Low investment cost
- Small footprint
- Low noise emission
The i-Dec centrifuge for wastewater treatment delivers the same high quality, robustness and easy serviceability as our most advanced models. Its innovative design, incorporating patented solutions, operates in fully enclosed process sections, ensuring efficiency and reliability. Trusted by wastewater plants worldwide, it meets key performance criteria for thickening and dewatering sludge in a particularly cost-effective way, offering additional benefits such as easy operation, a small footprint, low ownership costs and quiet operation.
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.
FeedProtect
Zona di alimentazione con protezione antiusura sostituibile
La zona di alimentazione FeedProtect, dal design esclusivo, garantisce un'accelerazione delicata del prodotto e una turbolenza minima, riducendo così l’abrasione e il consumo energetico. Il design FeedProtect è dotato di rivestimenti antiusura sostituibili, che assicurano un’elevata disponibilità operativa della centrifuga decanter.
DeepPond
Prestazioni di separazione elevate ed efficienza energetica
Aumentare la profondità del bacino all'interno del tamburo crea un volume maggiore, che si traduce in un tempo di ritenzione più lungo e in migliori prestazioni di separazione.
Il design DeepPond garantisce un'elevata secchezza dei solidi e un centrate pulito dalla tua centrifuga decanter, anche a portate elevate.
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.
FlightProtect
Protezione dall’usura delle spirali del trasportatore
FlightProtect™ è un rivestimento resistente all’usura, progettato appositamente per proteggere le spirali del trasportatore. Preserva l’integrità di ogni spirale e ne prolunga significativamente la vita utile, riducendo i costi di manutenzione e migliorando l’affidabilità operativa.
LiquidLock
Floating solids accelerator
A special device that accelerates floating solids from the surface into the solids layer. This results in liquids leaving the decanter centrifuge being of better quality.
How does a sludge dewatering centrifuge work?
Separation takes place in a horizontal cylindrical bowl equipped with a screw conveyor. The feed enters the bowl through a stationary inlet tube and is accelerated smoothly by an inlet distributor. The centrifugal force that results from the rotation then causes sedimentation of the solids on the wall of the bowl.
The conveyor rotates in the same direction as the bowl, but slightly slower, thus moving the solids towards the conical end of the bowl. A special patented Liquid-Lock conveyor design accelerates light particles before discharge for optimum separation. This also contributes to the small footprint of the unit.
Separation takes place throughout the entire length of the cylindrical part of the bowl. Relatively low G-force is needed for the i-Dec decanter to deliver good performance in terms of capacity and cake dryness. This contributes to low power consumption.
The clarified liquid leaves the bowl by flowing out of the casing viaspecial patented energy-saving PowerTubes that enable the effluent to discharge at lower speeds. The cake leaves the bowl into the casing through the solids discharge openings.
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Let us help you
Alfa Laval has been leading the wastewater decanter centrifuge market for decades. When partnering with Alfa Laval, you have full access to our application experts who can advise you on how to optimize your operations. And with the backing of our extensive service network, you always get quick assistance whenever you need it.
